Comets in SECCHI Images


96P/Machholz in HI1A

 

COR1B Comets

Name Designation Date Links IAUC description
SOHO-1613 C/2009 D4 2009 Feb 23 message 9056: showed a long, thin tail that was visible in C3 images (which showed a small head that peaked at mag about 2-3
and a tail length of about 1 degree) as well as in C2 SOHO images and in SECCHI COR2-A and COR2-B images

COR2A Comets

Name Designation Date Links IAUC description
SOHO-1241 C/2006 Y6 2006 Dec 22 C3-COR2A 8819: reached mag 5.0 on Dec. 21.846 (at 11 solar radii) in C3 images, while C2 images show a hint of an
extremely faint, thin tail
SOHO-1259 C/2007 B6 2007 Feb 01 twokreutz 8844: (mag about 5) with a hint of a tail
SOHO-1260 C/2007 C3 2007 Feb 02 twokreutz 8844: reached mag about 4 and showed a very short, faint tail
SOHO-1264 C/2007 C6 2007 Feb 07 animation 8844: reached mag about 3; it showed a very faint, thin tail about 0.5 deg long
in C2 images
SOHO-1270 C/2007 C13 2007 Feb 15 positions 8844: was brighter (peaking at mag about 3.5), showing a short, "headless" tail about 20' long in C2 images
SOHO-1276 C/2007 F2 2007 Mar 21/22 animation 8847: reached mag about 5 in C3 images, and showed a thin, faint, 15' tail in C2 images
SOHO-1277 C/2007 F3 2007 Mar 27 positions 8847: was stellar in appearance, reaching mag about 6; it was tailless even in C2 images
SOHO-1318 C/2007 L2 2007 Jun 06 positions 8883: was stellar in appearance in C3 images, and was of mag about 5.5 with an extremely faint, thin tail in C2 images
SOHO-1319 C/2007 L3 2007 Jun 07 animation 8883: peaked at mag about 3 with a dense, wide tail about 45" long on June 8.171 UT; while the comet's "head" disappeared
at about June 8.181, the tail was still visible at June 8.917 (when it had extended into a diffuse arc of apparent length around
1.5 deg), and this comet was also visible in coronagraphs on both STEREO spacecraft
SOHO-1329 C/2007 L13 2007 Jun 15 positions 8889: was stellar (mag about 5.5) in C3 images, appeared slightly diffuse with a very faint tail in C2 images.
SOHO-1330 C/2007 M4 2007 Jun 25/26 positions 8889: was stellar (mag about 5.5) in C3 images, was slightly diffuse and showed a short, thin, faint tail in C2 images.
SOHO-1342 C/2007 N7 2007 Jul 13/14   8892: of mag about 6 in C3 images; C2 images showed C/2007 N7 to be slightly diffuse with a very faint short tail.
SOHO-1359 C/2007 S5 2007 Sep 27 positions 8910: was bright (mag 4) and teardrop-shaped in C3-coronagraph images;
C2 images showed a long (0.75-deg), thin tail
SOHO-1386 C/2007 V4 2007 Nov 03 positions 8918: appeared stellar in C3 images and was of mag about 5.5
SOHO-1393 C/2007 V11 2007 Nov 11 positions 8919: was bright (mag 4) with a short tail in C3 images; in C2 images, it also showed a short, faint tail
SOHO-1414 C/2007 X10 2007 Dec 13 positions
animations		 8920: was teardrop-shaped and very bright (mag about 3) in C3 images,
and showed a broad head and a thin tail in C2 images
SOHO-1423 C/2007 Y5 2007 Dec 23 positions 8921: was quite bright (mag about 5.5) and teardrop-shaped (with a hint of a stubby tail)
SOHO-1431 C/2008 B2 2008 Jan 27/28 positions 8933: reached mag about 6 in H1A and C3 images and was just barely visible
with a thin, faint tail in C2 images
SOHO-1439 C/2008 C8 2008 Feb 15 positions 8953: reached mag about 5.5 and appeared teardrop-shaped in C3 images,
while it was a very faint, thin streak in C2 images
STEREO-3 C/2008 D3 2008 Feb 21 positions 8926: was of mag perhaps 7 with a thin, faint tail in HI1-A images,
and brighter (mag perhaps 3) with a thin tail in COR2 images
SOHO-1476 C/2008 K4 2008 May 22/23 positions 8982: was one of the brightest comets seen by SOHO (saturating slightly in both LASCO cameras, with estimated peak
magnitude about 1-2), appearing as a bright teardrop in C3 images and having a partly-forked, "thick" tail about 0.5 long
in C2 images; both SECCHI COR cameras also imaged C/2008 K4, with the tail appearing somewhat thinner in the
COR2A images and showing the slight "fork" in the COR2B images
SOHO-1494 C/2008 L14 2008 Jun 15/16   8984: was teardrop-shaped (mag about 3-4) in C3 images, and showed a diffuse tail about 0.25 deg long in C2 images
(the tail also similarly visible in SECCHI COR2-A images, and as somewhat fainter and shorter in COR2-B images)
SOHO-1503 C/2008 N2 2008 Jul 03/04   8985: was very bright (mag about 4.5) and elongated in C3 images, and showed a diffuse tail about 0.5 deg long in C2 images
(where it appeared headless inside about 6 solar radii (apparent); SECCHI COR2-A images on July 3-4 showed a thin tail
much like that seen in C2 images, and a tail also was seen to form in the last images obtained with the COR2-B camera on July 4.
SOHO-1507 C/2008 N6 2008 Jul 05 positions 8985: was small and stellar in appearance (mag about 7.5) in C3 images, but slightly diffuse in C2 images
SOHO-1509 C/2008 N8 2008 Jul 08/09   8985: was quite bright (mag about 6) and slightly elongated in C3 images; it was teardrop-shaped and slightly diffuse in C2 images
SOHO-1517 C/2008 O1 2008 Aug 01 positions
image		 8985: appeared very small and stellar in appearance, peaking at mag about 6.
This comet was observed from the ground during a total eclipse of the sun.
SOHO-1519 C/2008 P3 2008 Aug 06 positions 9003: was small and stellar in appearance in C3 images (mag about 6.5), and very diffuse, very faint, and elongated in C2 images.
SOHO-1526 C/2008 R7 2008 Sep 06 positions
animation		 9006: an additional near-sun Kracht-group presumed comet was found by R. Kracht on SOHO website images.
C/2008 R7 was stellar in appearance in C3, C2, and COR2-A images, peaking at mag about 5.5 around Sept. 6.83 UT.
SOHO-1527 C/2008-R10 2008 Sep 08/09   9011: was elongated (mag about 5.5) in C3 images, and quite diffuse with a very faint short tail in C2 images.
SOHO-1608 C/2009 C3 2009 Feb 05   9055: was bright (mag about 2-3) with a thin tail in C3 images, while in C2 images it showed
a long, thin tail that went past the field-of-view and showed no appreciable 'head'
SOHO-1613 C/2009 D4 2009 Feb 22 positions
animation		 9056: showed a long, thin tail that was visible in C3 images (which showed a small head that peaked at mag about 2-3 and
a tail length of about 1 degree) as well as in C2 SOHO images and in SECCHI COR2-A and COR2-B images
SOHO-1617 C/2009 D7 2009 Feb 26 positions 9070: was bright (mag about 4) with a short tail in LASCO C3 images, while it showed a short tail and faded quickly in C2 images;
this comet was also detected in STEREO COR2-A and COR2-B images with a tail about 0.3 deg long
SOHO-1661 C/2009 L4 2009 Jun 04   9065: was stellar in appearance (mag about 6.5) in C3 images but quite large and very condensed with no visible tail in C2 images;
COR2-A STEREO images show a bright starlike head and a very faint, thin tail.
STEREO-21 C/2009 O1 2009 Jul 18 positions 9057: may have been around mag 6 or 6.5, appeared as a somewhat-long thin streak with no discernable head or coma in COR2-A
images;in COR2-B images, the comet appeared much more condensed (possibly slightly diffuse and with a hint of a barely detectable tail)
SOHO-1687 C/2009 P3 2009 Aug 01/02 positions 9114: was slightly elongated (mag about 5.5-6) [C3]
SOHO-1693 C/2009 R3 2009 Sep 07 positions Bo Zhou 20090906 22:40:18
SOHO-1721 C/2009 U14 2009 Oct 30 positions Bo Zhou 20091030 01:53:14
SOHO-1756 C/2009 X9 2009 Dec 07 positions q. bright, ~m6, slightly diffuse, tail [C3/2]
SOHO-1773 C/2009 Y13 2009 Dec 27 positions Bo Zhou 20091226 05:03:27
STEREO-23 C/2009 Y4 2010 Jan 02/03   9117: was bright (perhaps near mag 1 at peak), saturating SOHO C3 and C2 images,
where the tail was > 1 deg long; in HI-1 images, the tail was several degrees long.
STEREO-34 C/2010 B3 2010 Jan 21   ~1 deg tail [COR2A]
STEREO-37 C/2010 E6 2010 Mar 11/12   9157: this was one of the brightest comets seen in coronagraph spacecraft data, peaking around magnitude 1 near Mar. 12.625 UT.
SOHO-1897   2010 Jul 31 positions  
SOHO-1900   2010 Aug 12 positions
image		  
SOHO-1920   2010 Sep 29 positions Sep 29 2010 10:11:02, Michal Kusiak
SOHO-1922   2010 Oct 01 positions Oct 01 2010 09:51:08,Zhijian Xu+Ruan
SOHO-1932   2010 Oct 20 position  
SOHO-1954   2010 Nov 18    
SOHO-2107 C/2011 N3 2011 Jul 05   also observed in EUV images of SDO in front of the sun
Lovejoy C/2011 W3 2011 Dec 15/16    
SOHO-2256   2012 Mar 31 positions  

COR2B Comets

Name Designation Date Links IAUC description
SOHO-1276 C/2007 F2 2007 Mar 21/22 positions 8847: reached mag about 5 in C3 images, and showed a thin, faint, 15' tail in C2 images
SOHO-1318 C/2007 L2 2007 Jun 05 positions 8883: was stellar in appearance in C3 images, and was of mag about 5.5 with an extremely faint, thin tail in C2 images
SOHO-1319 C/2007 L3 2007 Jun 07 IAUC 8883 8883: peaked at mag about 3 with a dense, wide tail about 45" long on June 8.171 UT; while the comet's "head" disappeared
at about June 8.181, the tail was still visible at June 8.917 (when it had extended into a diffuse arc of apparent length around
1.5 deg), and this comet was also visible in coronagraphs on both STEREO spacecraft
SOHO-1330 C/2007 M4 2007 Jun 25/26 positions 8889: was stellar (mag about 5.5) in C3 images, was slightly diffuse and showed a short, thin, faint tail in C2 images.
SOHO-1359 C/2007 S5 2007 Sep 27 positions 8910: was bright (mag 4) and teardrop-shaped in C3-coronagraph images;
C2 images showed a long (0.75-deg), thin tail
SOHO-1386 C/2007 V4 2007 Nov 03 positions 8918: appeared stellar in C3 images and was of mag about 5.5
SOHO-1393 C/2007 V11 2007 Nov 11 positions 8919: was bright (mag 4) with a short tail in C3 images; in C2 images, it also showed a short, faint tail
SOHO-1414 C/2007 X10 2007 Dec 13 positions 8920: was teardrop-shaped and very bright (mag about 3) in C3 images,
and showed a broad head and a thin tail in C2 images
SOHO-1431 C/2008 B2 2008 Jan 27 positions 8933: reached mag about 6 in H1A and C3 images and was just barely visible
with a thin, faint tail in C2 images
SOHO-1439 C/2008 C8 2008 Feb 15 positions 8953: reached mag about 5.5 and appeared teardrop-shaped in C3 images,
while it was a very faint, thin streak in C2 images
STEREO-3 C/2008 D3 2008 Feb 21 positions 8926: was of mag perhaps 7 with a thin, faint tail in HI1-A images,
and brighter (mag perhaps 3) with a thin tail in COR2 images
SOHO-1476 C/2008 K4 2008 May 22/23 positions 8982: was one of the brightest comets seen by SOHO (saturating slightly in both LASCO cameras, with estimated peak
magnitude about 1-2), appearing as a bright teardrop in C3 images and having a partly-forked, "thick" tail about 0.5 long
in C2 images; both SECCHI COR cameras also imaged C/2008 K4, with the tail appearing somewhat thinner in the
COR2A images and showing the slight "fork" in the COR2B images
SOHO-1494 C/2008 L14 2008 Jun 15/16   8984: was teardrop-shaped (mag about 3-4) in C3 images, and showed a diffuse tail about 0.25 deg long in C2 images
(the tail also similarly visible in SECCHI COR2-A images, and as somewhat fainter and shorter in COR2-B images)
SOHO-1503 C/2008 N2 2008 Jul 03/04   8985: was very bright (mag about 4.5) and elongated in C3 images, and showed a diffuse tail about 0.5 deg long in C2 images
(where it appeared headless inside about 6 solar radii (apparent); SECCHI COR2-A images on July 3-4 showed a thin tail
much like that seen in C2 images, and a tail also was seen to form in the last images obtained with the COR2-B camera on July 4.
SOHO-1519 C/2008 P3 2008 Aug 06   9003: was small and stellar in appearance in C3 images (mag about 6.5), and very diffuse, very faint, and elongated in C2 images.
SOHO-1527 C/2008-R10 2008 Sep 08   9011: was elongated (mag about 5.5) in C3 images, and quite diffuse with a very faint short tail in C2 images.
SOHO-1608 C/2009 C3 2009 Feb 04/05 positions 9055: was bright (mag about 2-3) with a thin tail in C3 images, while in C2 images it showed
a long, thin tail that went past the field-of-view and showed no appreciable 'head'
SOHO-1613 C/2009 D4 2009 Feb 22 positions 9056: showed a long, thin tail that was visible in C3 images (which showed a small head that peaked at mag about 2-3 and
a tail length of about 1 degree) as well as in C2 SOHO images and in SECCHI COR2-A and COR2-B images
SOHO-1617 C/2009 D7 2009 Feb 26   9070: was bright (mag about 4) with a short tail in LASCO C3 images, while it showed a short tail and faded quickly in C2 images;
this comet was also detected in STEREO COR2-A and COR2-B images with a tail about 0.3 deg long
STEREO-21 C/2009 O1 2009 Jul 18 positions 9057: may have been around mag 6 or 6.5, appeared as a somewhat-long thin streak with no discernable head or coma in COR2-A images;
in COR2-B images, the comet appeared much more condensed (possibly slightly diffuse and with a hint of a barely detectable tail)
SOHO-1687 C/2009 P3 2009 Aug 01 positions 9114: was slightly elongated (mag about 5.5-6) [C3]
SOHO-1721 C/2009 U14 2009 Oct 30 positions Bo Zhou 20091030 01:53:14
SOHO-1756 C/2009 X9 2009 Dec 07 positions q. bright, ~m6, slightly diffuse, tail [C3/2]
SOHO-1773 C/2009 Y13 2009 Dec 27 positions Bo Zhou 20091226 05:03:27
SOHO-1774 C/2009 Y14 2009 Dec 28 positions Bo Zhou 20091228 08:26:55
STEREO-23 C/2009 Y4 2010 Jan 02/03   9117: was bright (perhaps near mag 1 at peak), saturating SOHO C3 and C2 images,
where the tail was > 1 deg long; in HI-1 images, the tail was several degrees long.
STEREO-34 C/2010 B3 2010 Jan 20/21   ~1 deg tail [COR2B]
STEREO-37 C/2010 E6 2010 Mar 12   9157: this was one of the brightest comets seen in coronagraph spacecraft data, peaking around magnitude 1 near Mar. 12.625 UT.
SOHO-1920   2010 Sep 29 positions Sep 29 2010 10:11:02, Michal Kusiak
SOHO-1932   2010 Oct 20 position  
SOHO-1954   2010 Nov 18    
SOHO-2107 C/2011 N3 2011 Jul 05   also observed in EUV images of SDO in front of the sun
Lovejoy C/2011 W3 2011 Dec 15/16    
SOHO-2256   2012 Mar 31 positions  

HI1A Comets

Name Designation Date Links IAUC description
McNaught C/2006 P1 2007 Jan 09-19 images and movies  
SWAN C/2006 M4 2007 Jan/Feb animation  
SOHO-1259 C/2007 B6 2007 Jan 30/31 twokreutz 8844: (mag about 5) with a hint of a tail
SOHO-1260 C/2007 C3 2007 Jan 31/Feb 01 twokreutz 8844: reached mag about 4 and showed a very short, faint tail
SOHO-1264 C/2007 C6 2007 Feb 04/05 animation 8844: reached mag about 3; it showed a very faint, thin tail about 0.5 deg long
in C2 images
SOHO-1268 C/2007 C11 2007 Feb 07 image C3+HI1A 8844: stellar in appearance, reaching mag about 6
SOHO-1270 C/2007 C13 2007 Feb 13-14 positions 8844: (peaking at mag about 3.5), showing a short, "headless" tail about 20' long
in C2 images
SOHO-1272 C/2007 D4 2007 Feb 16 positions 8846: very faint and stellar in appearance
SOHO-1273 C/2007 D5 2007 Feb 18 positions 8846: very faint and stellar in appearance
SOHO-1274 C/2007 E4 2007 Mar 02 positions 8846: very faint and stellar in appearance
SOHO-1275 C/2007 E5 2007 Mar 09 positions 8846: very faint and stellar in appearance
SOHO-1276 C/2007 F2 2007 Mar 19-21 positions 8847: reached mag about 5 in C3 images, and showed a thin, faint, 15' tail in C2 images
Encke 2P/Encke 2007 Mar 23-Apr 29 positions
animation		  
SOHO-1277 C/2007 F3 2007 Mar 26/27 positions 8847: was stellar in appearance, reaching mag about 6; it was tailless even in C2 images
SOHO-1279 C/2007 F5 2007 Mar 29 positions 8847: very small, somewhat diffuse, and quite faint (mag about 7.5-8)
Machholz 96P/Machholz 2007 Apr 01-06 animation1
animation2		  
Schwassmann-Wachmann 29P/Schwassmann-Wachmann 2007 May 07 positions
animation		  
LINEAR C/2006 XA1 2007 Jun 14 positions  
LONEOS C/2007 F1 2007 Oct 29/30 stereohunter #363  
McNaught C/2007 T1 2007 Nov 06-18 positions  
SOHO-1423 C/2007 Y 5 2007 Dec 20-23 positions 8921: was quite bright (mag about 5.5) and teardrop-shaped (with a hint of a stubby tail)
SOHO-1428 C/2007 Y10 2007 Dec 28/29 positions 8923: appeared stellar (mag about 5.5) in C3-coronagraph images,
and showed a short, faint, diffuse tail in C2 images
SOHO-1431 C/2008 B2 2008 Jan 27 positions 8933: reached mag about 6 in H1A and C3 images and was just barely visible
with a thin, faint tail in C2 images
SOHO-1435 C/2008 C4 2008 Feb 03 positions (#2) 8933: very faint (mag 7.5), and slightly diffuse
SOHO-1436 C/2008 C5 2008 Feb 05 positions (#1) 8933: was stellar in appearance, reaching mag about 6.5
SOHO-1437 C/2008 C6 2008 Feb 07 positions 8953: stellar in appearance (mag 7.5)
SOHO-1438 C/2008 C7 2008 Feb 09 positions 8953: stellar in appearance (mag 7)
SOHO-1439 C/2008 C8 2008 Feb 14/15 positions 8953: reached mag about 5.5 and appeared teardrop-shaped in C3 images,
while it was a very faint, thin streak in C2 images
STEREO-1 C/2008 D1 2008 Feb 16/17 positions 8926: very faint (mag about 10-11) and diffuse in HI1-A
SOHO-1441 C/2008 D5 2008 Feb 18 positions 8955: small, stellar in appearance, and of mag about 7
STEREO-2 C/2008 D2 2008 Feb 19 positions 8926: very faint (mag about 9) and diffuse in HI1-A
STEREO-3 C/2008 D3 2008 Feb 20/21 positions 8926: was of mag perhaps 7 with a thin, faint tail in HI1-A images,
and brighter (mag perhaps 3) with a thin tail in COR2 images
STEREO-4 C/2008 D4 2008 Feb 21 positions 8926: very faint (mag about 10-11) and diffuse in HI1-A
SOHO-1444 C/2008 D8 2008 Feb 24 positions 8955: was slightly diffuse and very faint (mag 7.5)
SOHO-1443 C/2008 D7 2008 Feb 24/25 positions 8955: small, stellar in appearance, and of mag about 7
SOHO-1445 C/2008 D9 2008 Feb 28/29 positions 8955: was slightly diffuse and small (mag 7) in C3 images, but very diffuse and very faint in C2 images
STEREO-5 C/2008 E5 2008 Mar 05 positions 8955: very faint (mag about 11)
SOHO-1448 C/2008 E8 2008 Mar 06 positions 8956: was small, stellar in appearance, and of mag about 7
SOHO-1449 C/2008 E9 2008 Mar 11 positions 8956: was very faint (mag about 7-7.5) and slightly diffuse in C3 images,
and very diffuse and elongated in C2 images
STEREO-17 C/2008 E10 2008 Mar 07/08 positions 9051: peak magnitude 11-12
STEREO-6 C/2008 E6 2008 Mar 15 positions 8955: very faint (mag about 11)
McNaught C/2006 Q1 2008 Aug 05 positions  
McNaught C/2008 A1 2008 Oct 04 positions  
Lulin C/2007 N3 2008 Oct 18-21
2009 May 01-04		 positions
positions		  
SOHO-1580 C/2008 X11 2008 Dec 03-05 positions 9031: was small and stellar in appearance (mag about 7) in C3 images, but slightly
diffuse with a short, faint, diffuse tail in C2 images
SOHO-1583 C/2008 X12 2008 Dec 08/09 positions 9031: was small and stellar in appearance (mag about 6.5) in C3 images,
but condensed with a very thin, faint tail in C2 images
SOHO-1584 C/2008 X13 2008 Dec 09/10 positions 9032: was quite diffuse (mag about 7.5) with a very short, diffuse tail
SOHO-1588 C/2008 Y6 2008 Dec 20/21 positions (#1) 9036: (mag about 6.5-7), C2 images showed C/2008 Y6 as slightly diffuse, showing a short, faint tail
SOHO-1589 C/2008 Y7 2008 Dec 20/21 positions (#2) 9036: (mag about 6-6.5), teardrop-shaped, showing a short, faint tail
SOHO-1592 C/2008 Y10 2008 Dec 20-22 positions (#3) 9037: was stellar in appearance (mag about 6) in C3 images; in C2 images,
it was teardrop-shaped and slightly diffuse
SOHO-1594 C/2008 Y12 2008 Dec 21/22   very faint
SOHO-1606 C/2008 Y18 2008 Dec 25 positions  
SOHO-1595 C/2008 Y13 2008 Dec 27 positions 9039: appeared stellar (mag about 7-7.5) in C3 images,
but was very diffuse, faint, and slightly elongated in C2 images
SOHO-1597 C/2008 Y15 2008 Dec 29 positions 9039: stellar in appearance (mag about 7.5)
SOHO-1598 C/2009 A2 2008 Dec 31 positions 9042: tiny and stellar in appearance, mag about 7 in C3,
condensed, and teardrop-shaped, peak mag about 10 in STEREO HI1-A images.
SOHO-1599 C/2009 A3 2009 Jan 01 positions (#1) 9042: tiny and stellar in appearance, mag about 7.5 in C3, small and "roughly stellar" in C2,
slightly diffuse and elongated, peak mag about 10 in STEREO HI1-A images.
SOHO-1600 C/2009 A4 2009 Jan 01/02 positions (#2) 9042: tiny and stellar in appearance, mag about 7.5 in C3,
slightly diffuse and elongated, peak mag about 11 in STEREO HI1-A images.
SOHO-1601 C/2009 A5 2009 Jan 02 positions (#3) 9042: tiny and stellar in appearance, mag about 7.5 in C3,
slightly diffuse and elongated, peak mag about 11 in STEREO HI1-A images.
SOHO-1602 C/2009 A7 2009 Jan 04 positions 9055: was stellar in appearance (mag about 7-7.5) in the C3 images; it was also imaged with the
SECCHI HI-1A camera, which showed it to be small and slightly diffuse at mag about 11
STEREO-8 C/2009 A8 2009 Jan 04 positions (#6) 9057: small, faint, and slightly diffuse (mag around 11-12)
STEREO-9 C/2009 A6 2009 Jan 02 positions 9053: peak magnitude 11
STEREO-10 C/2008 Y16 2009 Jan 01 positions (#1) 9051: peak magnitude 10-11
STEREO-16 C/2008 Y17 2009 Jan 01 positions 9051: peak magnitude 10
STEREO-18 C/2009 A9 2009 Jan 10 positions 9057: small, faint, and slightly diffuse (mag around 11-12)
STEREO-19 C/2009 A10 2009 Jan 10 message 9057: small, faint, and slightly diffuse (mag around 11-12)
STEREO-11 C/2009 A1 2009 Jan 10-12 positions 9025: was very faint, peaking around mag 13 (with 14 being the limiting magnitude of the
HI-1 instruments), and it was small and seemingly diffuse
STEREO-12 C/2009 B6 2009 Jan 19/20 positions 9054: peak magnitude 11
SOHO-1603 C/2009 B8 2009 Jan 20 positions 9055: was slightly diffuse (mag about 7) [in C3]
SOHO-1605 C/2009 B9 2009 Jan 28 positions 9055: was stellar in appearance (mag about 7.5) [in C3]
STEREO-13 C/2009 B7 2009 Jan 29 positions 9054: peak magnitude 11
SOHO-1607 C/2009 B11 2009 Jan 30 positions 9055: was also stellar in appearance (mag about 7-7.5) [in C3]
SOHO-1608 C/2009 C3 2009 Feb 04 positions 9055: was bright (mag about 2-3) with a thin tail in C3 images, while in C2 images it showed
a long, thin tail that went past the field-of-view and showed no appreciable 'head'
SOHO-1609 C/2009 C4 2009 Feb 07/08 positions 9055: was slightly elongated, peaking at mag about 7 (and brightening in the last image) [C3]
STEREO-14 C/2009 C1 2009 Feb 10 positions 9054: peak magnitude 11-12
Churyumov-Gerasimenko 67P/Churyumov-Gerasimenko 2009 Feb 10
2009 Mar 07/08		 positions
positions		  
STEREO-15 C/2009 C2 2009 Feb 11/12 positions 9054: peak magnitude 10
SOHO-1610 C/2009 C5 2009 Feb 11   9056: was faint and slightly diffuse, peaking at mag about 7 [C3]
SOHO-1611 C/2009 D2 2009 Feb 18 positions 9056: small and stellar in appearance, peaking at mag about 7 [C3]
SOHO-1612 C/2009 D3 2009 Feb 18 positions 9056: small and stellar in appearance, peaking at mag about 7-7.5 [C3]
SOHO-1613 C/2009 D4 2009 Feb 20-22 positions 9056: showed a long, thin tail that was visible in C3 images (which showed a small head that
peaked at mag about 2-3 and a tail length of about 1 degree) as well as in C2 SOHO images
and in SECCHI COR2-A and COR2-B images
SOHO-1614 C/2009 D5 2009 Feb 23 positions 9059: mag about 6.5-7 [C3]
SOHO-1617 C/2009 D7 2009 Feb 26/27 positions 9070: was bright (mag about 4) with a short tail in LASCO C3 images, while it showed
a short tail and faded quickly in C2 images; this comet was also detected in STEREO COR2-A
and COR2-B images with a tail about 0.3 deg long
SOHO-1618 C/2009 E2 2009 Feb 28 positions 9077: was small and slightly diffuse (mag about 7) [C3]
SOHO-1620 C/2009 E4 2009 Mar 09 positions 9077: was small and slightly diffuse (mag about 6.5-7) in C3 images; in C2 images it was faint,
diffuse, and slightly elongated.
Itagaki C/2009 E1 2009 Mar 21- positions  
Cardinal C/2008 T2 2009 April 27- positions  
Broughton C/2006 OF2 2009 May 07-09 positions  
Schwassmann-Wachmann 29P/Schwassmann-Wachmann 2009 May 09-13 positions  
Phaethon 3200 Phaeton 2009 Jun 17-22 positions 9054: peaking at mag perhaps 10-11 a few hours after perihelion (T = June 20.302 TT,
q = 0.140 AU); 36 hr later, the object's had faded to magnitude roughly 13-14
Wild 116P/Wild 2009 Jul 07 positions  
Garradd C/2008 Q3 2009 Aug 01/02 positions  
Howell 88P/Howell 2009 Sep 11
2009 Dec 05		 positions
positions		  
Christensen C/2006 W3 2009 Nov 07/08 positions  
SOHO-1732 C/2009 V6 2009 Nov 13 positions 9156: was slightly diffuse with a "slight" tail [C3/2]
SOHO-1733 C/2009 V7 2009 Nov 14 positions 9156: was diffuse (peak mag about 6) with a "slight" tail [C3/2]
SOHO-1734 C/2009 W3 2009 Nov 15 positions 9156: was slightly diffuse (peak mag about 6.5) [C3/2]
SOHO-1738 C/2009 W7 2009 Nov 22 positions 9160: peak magnitudes were about 7.5-8, with C/2009 W7 being slightly diffuse
SOHO-1753 C/2009 X6 2009 Dec 04 positions 9164: slightly diffuse, ~m7 [C2]
SOHO-1756 C/2009 X9 2009 Dec06 positions 9164: q. bright, ~m6, slightly diffuse, tail [C3/2]
SOHO-1759 C/2009 X12 2009 Dec 07/08 positions
positions		 9164: ~m7-7.5, very diffuse [C3/2]
SOHO-1760 C/2009 X13 2009 Dec 09 positions 9164: diffuse, ~m7 [C3/2]
SOHO-1762 C/2009 X15 2009 Dec 13 positions 9164: diffuse, ~m7-7.5 [C2]
SOHO-1763 C/2009 X16 2009 Dec 13 positions 9164: slightly diffuse, ~m7 [C3/2]
SOHO-1764 C/2009 X17 2009 Dec 14/15 positions 9164: diffuse, ~m7-7.5 [C2]
SOHO-1767 C/2009 Y5 2009 Dec 16 positions subgrp II Kreutz, ~m7.5
STEREO-22 C/2009 Y3 2009 Dec 19 positions 20091222 A. Watson
SOHO-1769 C/2009 Y9 2009 Dec 22 positions very small, ~m8
SOHO-1771 C/2009 Y11 2009 Dec 24 positions 20091225 M. Uchina
SOHO-1773 C/2009 Y13 2009 Dec 24 positions 20091226 05:03:27 B. Zhou
SOHO-1772 C/2009 Y12 2009 Dec 25 positions 20091225 22:34:35 B. Zhou
SOHO-1774 C/2009 Y14 2009 Dec 28 positions 20091228 08:28:55 B. Zhou
STEREO-23 C/2009 Y4 2009 Dec 30/31 positions
positions		 9117: was bright (perhaps near mag 1 at peak), saturating SOHO C3 and C2 images,
where the tail was > 1 deg long; in HI-1 images, the tail was several degrees long.
STEREO-24 C/2009 Y16 2009 Dec 30 positions 9215: Peak approximate magnitude: 10-11
STEREO-25 C/2009 Y15 2009 Dec 30 positions A. Watson
STEREO-26 C/2009 Y17 2009 Dec 30 positions 9215: Peak approximate magnitude: 10
SOHO-1781 C/2009 Y19 2009 Dec 31 positions 20091231 15:23:13 J. Ruan
SOHO-1782 C/2010 A6 2010 Jan 02 positions Faint, slightly elongated, ~m11-12
SOHO-1783 C/2010 A7 2010 Jan 03   Slightly elongated, ~m11
STEREO-27 C/2010 A13 2010 Jan 10   very faint, ~m12.5
STEREO-28 C/2010 A18 2010 Jan 11/12   slightly elongated, ~m11.5-12
STEREO-29 C/2010 A19 2010 Jan 12   slightly elongated, ~m12-12.5
STEREO-30 C/2010 A20 2010 Jan 12   slightly elongated, ~m12
STEREO-31 C/2010 A21 2010 Jan 13   slightly elongated, ~m12.5-13
STEREO-32 C/2010 A22 2010 Jan 13/14   slightly elongated, ~m10.5-11
STEREO-33 C/2010 A23 2010 Jan 14   slightly elongated, ~m10.5
STEREO-34 C/2010 B3 2010 Jan 17-20   Very long (several deg) tail [HI1A], Peak brightness [C3/2] ~m3-4
STEREO-35 C/2010 B4 2010 Jan 20   slightly elongated, ~m11.5-12
STEREO-36 C/2010 B5 2010 Jan 21   slightly elongated, ~m11.5-12
STEREO-37 C/2010 E6 2010 Mar 08-10   9157: this was one of the brightest comets seen in coronagraph spacecraft data,
peaking around magnitude 1 near Mar. 12.625 UT.
Catalina C/2009 O2 2010 Apr 04 positions  
SOHO-1828 C/2010 H3 2010 Apr 20 positions
animation		 Marsden group comet
Encke 2P/Encke 2010 Aug 23- positions  
SOHO-1930   2010 Oct 17 positions  
SOHO-1932   2010 Oct 18 positions  
STEREO-38   2010 Nov 06 postions  
STEREO-39   2010 Nov 06/07 postions  
SOHO-1945   2010 Nov 08 positions Nov 09 2010 04:40:43 Michal Kusiak
STEREO-40   2010 Nov 09/10 positions  
SOHO-1946   2010 Nov 09 positions Nov 10 2010 22:02:22 Masanori Uchina
SOHO-1947   2010 Nov 09/10 positions Nov 11 2010 05:10:52 Michal Kusiak
STEREO-41   2010 Nov 19 positions  
SOHO-1961   2010 Nov 26 positions Nov 26 2010 19:37:00 Rob Matson
STEREO-42   2010 Nov 27 positions Alan Watson
SOHO-1962   2010 Nov 28 positions Nov 28 2010 13:18:31 Michal Kusiak
SOHO-1963   2010 Nov 28 positions Nov 28 2010 17:24:32 Masanori Uchina
SOHO-1964   2010 Dec 02/03 positions Dec 03 2010 09:01:13 Michal Kusiak
SOHO-1967   2010 Dec 04 positions Dec 05 2010 02:17:19 Zhijian Xu
SOHO-1972   2010 Dec 09 positions Dec 09 2010 09:59:17 Masanori Uchina
SOHO-1975   2010 Dec 13 positions Dec 13 2010 11:14:59 Z. Xu
SOHO-1977   2010 Dec 14 positions Dec 13 2010 23:14:38 M. Uchina
SOHO-1978   2010 Dec 13 positions Dec 14 2010 01:13:15 B. Zhou
SOHO-1979   2010 Dec 14/15 positions Dec 15 2010 02:33:44 B. Zhou
SOHO-1980   2010 Dec 15 positions Dec 15 2010 10:20:38 M. Uchina
SOHO-1981   2010 Dec 15/16 positions Dec 16 2010 11:48:02 Bo Zhou
SOHO-1985   2010 Dec 17 positions Dec 17 2010 10:54:43 Z. Xu
SOHO-1986   2010 Dec 16/17 positions Dec 17 2010 11:07:27 M. Uchina
SOHO-1987   2010 Dec 17 positions Dec 17 2010 15:51:27 M. Kusiak
Linear 249P/Linear 2011 Apr 04- positions  
Elenin C/2010 X1 2011 Sep 03 positions  
SOHO-2143   2011 Sep 28 positions  
SOHO-   2011 Oct 16 positions  
SOHO-2155   2011 Oct 20 positions Oct 21 2011 07:22:37 M. Kusiak
SOHO-2159   2011 Oct 28 positions Oct 29 2011 07:37:48 Szymon Liwo
SOHO-2158   2011 Oct 28 positions Oct 28 2011 22:42:18 Sergei Schmalz 
SOHO-2157   2011 Oct 27 positions Oct 27 2011 17:30:37 Michal Kusiak 
SOHO-2160?   2011 Oct 29 positions Oct 30 2011 06:29:18 Zhijian Xu ??
SOHO   2011 Oct 02-30 positions another six HI1A Kreutz comets, probably known SOHO
Gehrels 78P/Gehrels 2011 Dec 02 positions  
Lovejoy C/2011 W3 2011 Dec 12..21    

HI1B Comets

Name Designation Date Links IAUC description
McNaught C/2006 P1 2007 Jan 11 images and movies  
Encke 2P/Encke 2007 May 01-02    
Schwassmann-Wachmann 29P/Schwassmann-Wachmann 2007 Jul 07 positions  
SOHO-1346 C/2007 Q5 2007 Aug 16-17 positions
animation		 8892: stellar in appearance in C3 images, of mag about 6 in C3 images
SOHO-1347 C/2007 Q4 2007 Aug 16-17 positions
animation		 8892: stellar in appearance in C3 images, of mag about 6 in C3 images
SOHO-1348 C/2007 Q6 2007 Aug 16-17 positions
animation		 8892: stellar in appearance in C3 images, was very small and of mag about 6.5 [C3]
SOHO-1349 C/2007 Q7 2007 Aug 24-25 positions 8892: stellar in appearance in C3 images, of mag about 6 in C3 images
SOHO-1350 C/2007 Q8 2007 Aug 27-28 positions 8895: was bright (mag about 4.5) and elongated
SOHO-1351 C/2007 Q9 2007 Aug 28 positions 8895: was also clearly visible in SECCHI HI-1B images for several hours, was also quite
bright (mag about 5.5) and slightly elongated
SOHO-1352 C/2007 R6 2007 Aug 30 positions 8895: was very faint (mag about 8) and slightly diffuse
SOHO-1354 C/2007 R8 2007 Sep 09 positions 8895: stellar in appearance and faint (mag about 7) in C3 images
SOHO-1355 C/2007 R9 2007 Sep 13 positions 8896: tiny and stellar in appearance (mag about 7)
SOHO-1357 C/2007 S3 2007 Sep 15 positions 8896: tiny and stellar in appearance (mag about 7)
SOHO-1358 C/2007 S4 2007 Sep 23 positions 8896: appeared quite diffuse and very faint (mag about 7) in C3 images,
and extremely faint and diffuse in C2 images.
SOHO-1359 C/2007 S5 2007 Sep 25-27 positions 8910: was bright (mag 4) and teardrop-shaped in C3-coronagraph images;
C2 images showed a long (0.75-deg), thin tail
SOHO-1360 C/2007 S6 2007 Sep 27 positions 8910: tiny and stellar in appearance (mag about 7) in C3
in C2 very faint and diffuse
SOHO-1361 C/2007 S8 2007 Sep 28/29 positions (#1) 8910: tiny and stellar in appearance (mag about 7.5) in C3
in C2 very faint and diffuse
SOHO-1364 C/2007 S9 2007 Sep 29 positions (#2) 8910: tiny and stellar in appearance (mag about 7) in C3
in C2 "fuzzy" and faint
SOHO-1365 C/2007 S10 2007 Sep 29 positions (#3) 8910: small and stellar in appearance (mag about 6) in C3, diffuse in C2
SOHO-1366 C/2007 T7 2007 Oct 04 positions 8910: small and stellar in appearance (mag about 6) in C3,
in C2 a bit diffuse with a hint of a tail
SOHO-1367 C/2007 T8 2007 Oct 10 positions (#1) 8910: tiny and stellar in appearance (mag about 7) in C3
in C2 diffuse
SOHO-1368 C/2007 T9 2007 Oct 10 positions (#3) 8910: small and stellar in appearance (mag about 6.5) in C3,
in C2 diffuse with a hint of a tail
SOHO-1369 C/2007 T10 2007 Oct 10 positions (#2) 8910: stellar in appearance (mag 7) in C3, in C2 diffuse
LONEOS C/2007 F1 2007 Oct 22 positions  
SOHO-1375 C/2007 U3 2007 Oct 23/24 positions 8912: was stellar in appearance (mag about 6) in C3 images,
and fairly condensed with a hint of a thin, faint tail in C2 images.
SOHO-1378 C/2007 U8 2007 Oct 26/27 positions 8918: stellar in C3 images with mag about 6.5,
in C2 images, C/2007 U8 was elongated and somewhat diffuse
SOHO-1381 C/2007 U10 2007 Oct 28 positions 8918: stellar in C3 images with mag about 7, in C2 slighly diffuse,
showing a hint of a faint tail
SOHO-1383 C/2007 U12 2007 Oct 29/30 positions 8918: stellar in C3 images with mag about 6, in C2 slighly diffuse,
showing a hint of a faint tail
SOHO-1384 C/2007 U13 2007 Oct 30 positions 8918: stellar in C3 images with mag about 6.5, in C2 slighly diffuse,
showing a hint of a faint tail
SOHO-1386 C/2007 V4 2007 Nov 02 positions 8918: stellar in C3 images with mag about 5.5, in C2 images C/2007 V4 had
a faint thin tail about 23' long at 5.8 solar radii on Nov. 3.560 UT
SOHO-1390 C/2007 V9 2007 Nov 06 positions 8918: stellar in C3 images with mag about 6.5, in C2 images C/2007 V9
was mostly stellar in appearance with a hint of a short faint tail
SOHO-1393 C/2007 V11 2007 Nov 08-11 positions 8919: was bright (mag 4) with a short tail in C3 images;
in C2 images, it also showed a short, faint tail
SOHO-1397 C/2007 W4 2007 Nov 18 positions 8919: small and stellar in appearance (mag about 6.5)
SOHO-1400 C/2007 W7 2007 Nov 22 positions 8919: stellar in appearance (mag 6.5) in C3 images,
and it appeared as a bright 'teardrop' in C2 images
SOHO-1409 C/2007 X4 2007 Dec 04 positions 8919: was stellar in appearance (mag about 5.5) in C3 images,
and quite condensed and teardrop-shaped in C2 images
SOHO-1414 C/2007 X10 2007 Dec 10-12 positions
animations		 8920: was teardrop-shaped and very bright (mag about 3) in C3 images,
and showed a broad head and a thin tail in C2 images
Borelly 19P/Borelly 2008 Jun 15-18 positions  
SOHO-1525 C/2008 R9 2008 Sep 04 positions 9011: (mag about 7), small and stellar in appearance
SOHO-1527 C/2008 R10 2008 Sep 07/08 positions(2) 9011: was elongated (mag about 5.5) in C3 images, and quite diffuse
with a very faint short tail in C2 images
SOHO-1528 C/2008 R11 2008 Sep 07 positions(1) 9011: (mag about 6.5) small and stellar in appearance
SOHO-1529 C/2008 R12 2008 Sep 10-12 positions 9011: was slightly elongated (mag about 6-6.5) in C3 images, and diffuse with a very faint, diffuse,
short tail in C2 images
SOHO-1533 C/2008 S5 2008 Sep 19 positions 9014: (peak mag about 7) small and stellar in appearance
SOHO-1535 C/2008 S7 2008 Sep 28/29 positions
animation		 9014: was small and stellar in appearance (mag about 6.5-7) in C3 images, but very diffuse
and slightly elongated in C2 images
SOHO-1536 C/2008 S8 2008 Sep 29/30 positions 9014: was stellar in appearance (mag about 6.5-7) in C3 images, but diffuse with a very faint, diffuse,
short tail in C2 images
SOHO-1540 C/2008 T9 2008 Oct 04 positions(1) 9018: of mag 7.5-8 in C3 images; diffuse and very faint in C2 images
SOHO-1539 C/2008 T8 2008 Oct 04/05 positions(2) 9018: peaked at mag about 6.5- 7 in C3 images, but was quite diffuse
with a short, diffuse tail in C2 images
SOHO-1543 C/2008 T12 2008 Oct 13 positions(5) 9020: was very small, diffuse, and elongated (mag about 8)
SOHO-1544 C/2008 U2 2008 Oct 15/16 positions(4) 9020: was small and stellar in appearance (mag about 7)
SOHO-1546 C/2008 U4 2008 Oct 16/17 positions(3) 9020: was slightly diffuse, appearing small (mag about 7) in C3 images
with a short, diffuse tail in C2 images
SOHO-1549 C/2008 U7 2008 Oct 20 positions(2) 9021: was stellar in appearance and perhaps slightly elongated (mag about 7) in C3 images,
but quite diffuse with a thin, diffuse, faint tail in C2 images
SOHO-1550 C/2008 U8 2008 Oct 20 positions(1) 9021: was very diffuse (mag about 8-8.5)
SOHO-1553 C/2008 U11 2008 Oct 24 positions(2) 9022: was slightly diffuse; it appeared small (mag about 7) in C3 images, with a short,
diffuse tail in C2 images
SOHO-1554 C/2008 U13 2008 Oct 26 positions(1) 9022: was stellar in appearance (mag about 7.5) in C3 images, and quite condensed
with no tail in C2 images
STEREO-7 C/2008 W1 2008 Nov 18 positions 9025: peaked at magnitude perhaps 9-10; the SOHO LASCO instrument was not operational
when this object was found.
SOHO-1566 C/2008 W3 2008 Nov 23 positions(2) 9027: stellar in appearance (mag about 7-7.5) in C3 images, and quite condensed in C2 images
SOHO-1567 C/2008 W5 2008 Nov 23 positions(1) 9027: stellar in appearance (mag about 6.5) in C3 images, and fairly condensed with a very short,
diffuse tail in C2 images
SOHO-1570 C/2008 W7 2008 Nov 24 positions 9028: stellar in appearance (mag about 7-7.5) in C3 images,
and slightly diffuse with a faint, diffuse tail in C2 images
SOHO-1578 C/2008 X9 2008 Dec 02 positions 9031: was small and condensed (mag about 7-7.5)
SOHO-1580 C/2008 X11 2008 Dec 03/04 positions 9031: was small and stellar in appearance (mag about 7) in C3 images, but slightly
diffuse with a short, faint, diffuse tail in C2 images
SOHO-1583 C/2008 X12 2008 Dec 08/09 positions 9031: was small and stellar in appearance (mag about 6.5) in C3 images,
but condensed with a very thin, faint tail in C2 images
Christensen P/2003 K2 = 2008 X4 2008 Dec 08- positions  
Lulin C/2007 N3 2008 Dec 23-28 positions  
STEREO-11 C/2009 A1 2009 Jan 12 positions 9025: was very faint, peaking around mag 13 (with 14 being the limiting magnitude of the HI-1
instruments), and it was small and seemingly diffuse
STEREO-20 C/2009 G1 2009 Apr 03- positions 9036: slightly diffuse comet of mag about 10-11 with no apparent tail
Phaethon 3200 Phaeton 2009 Jun 21-22 positions 9054: peaking at mag perhaps 10-11 a few hours after perihelion (T = June 20.302 TT,
q = 0.140 AU); 36 hr later, the object's had faded to magnitude roughly 13-14
SOHO-1697 C/2009 S6 2009 Sep 22/23 positions 9168: slightly diffuse, short tail
SOHO-1699 C/2009 S8 2009 Sep 26 positions 9168: quite diffuse, faint tail
SOHO-1701 C/2009 S10 2009 Sep 26 positions 9168: slightly diffuse, with a tail
SOHO-1705 C/2009 T5 2009 Oct 04 positions 9168: diffuse with a tail
SOHO-1707 C/2009 T7 2009 Oct 07 positions 9168: mag about 8.5 [C2]
SOHO-1708 C/2009 T8 2009 Oct 11 positions 9168: diffuse (mag about 7.5) with a "slight tail"
SOHO-1711 C/2009 T12 2009 Oct 13 positions 9170: peaked near mag about 7.5, diffuse
SOHO-1710 C/2009 T11 2009 Oct 13 positions 9170: peaked near mag about 7.5
SOHO-1713 C/2009 T13 2009 Oct 14/15 positions 9170: peaked near mag about 7.5, diffuse
SOHO-1716 C/2009 U9 2009 Oct 21 positions 9170: (mag about 7-7.5) stellar in appearance
SOHO-1718 C/2009 U11 2009 Oct 22 positions 9171: was slightly diffuse with a "slight" tail
SOHO-1719 C/2009 U12 2009 Oct 25 positions 9171: was very diffuse with a "large" tail (mag about 5)
SOHO-1720 C/2009 U13 2009 Oct 28 positions 20091029 05:23:50 B. Zhou
SOHO-1722 C/2009 V3 2009 Nov 01/02 positions
positions		 9156:was very faint (peak magnitude about 7.5-8) [C3]
SOHO-1723 ? C/2009 V4 ? 2009 Nov 01 positions 9156: slightly diffuse with a very short tail [C2]
SOHO-1748 C/2009 V1 2009 Nov 04 positions 9116: very faint (peak mag about 8-8.5) and slightly diffuse [C3]
SOHO-1780 C/2009 V2 2009 Nov   9116: very faint (peak mag about 8-8.5) and slightly diffuse [C3]
SIDING SPRING C/2007 Q3 2009 Nov 05 positions  
SOHO- C/2009 2009 Nov 05 positions 20091105 17:41:16 M. Uchina ?
SOHO-1731 C/2009 V5 2009 Nov 06 positions 9156: was somewhat diffuse [C3/2]
NEAT 169P 2009 Nov 13 positions  
SOHO-1732 C/2009 V6 2009 Nov 13 positions 9156: was slightly diffuse with a "slight" tail [C3/2]
SOHO-1733 C/2009 V7 2009 Nov 15 positions 9156: was diffuse (peak mag about 6) with a "slight" tail [C3/2]
SOHO-1734 C/2009 W3 2009 Nov 15 positions 9156: was slightly diffuse (peak mag about 6.5) [C3/2]
SOHO-1738 C/2009 W7 2009 Nov 22 positions 20091122 17:33:07 M. Kusiak
SOHO-1749 C/2009 X2 2009 Nov 30 positions 20091201 13:24:28 B. Zhou
SOHO-1756 C/2009 X9 2009 Dec 06 positions q. bright, ~m6, slightly diffuse, tail [C3/2]
SOHO-1759 C/2009 X12 2009 Dec 07 positions ~m7-7.5, very diffuse [C3/2]
STEREO-22 C/2009 Y3 2009 Dec 19 positions 9117: in SOHO C2 website data .. it peaked at mag about 7-7.5 and showed
a 'double nucleus' that was not visible in HI-1 images
SOHO-1773 C/2009 Y13 2009 Dec 26 positions 20091226 05:03:37 B. Zhou
STEREO-? C/2009 2009 Dec 30 positions A. Watson
SOHO-1781 C/2009 Y19 2009 Dec 30 positions 20091231 15:23:13 J. Ruan
Christensen C/2006 W3 2010 Mar 25 positions  
Mc Naught C/2009 R1 2010 May 04 positions
animation		  
SOHO-1932   2010 Oct 17 positions  
SOHO-1972   2010 Dec 09 positions Dec 09 2010 09:59:17 Masanori Uchina
SOHO-   2010 Dec 13 positions  
SOHO-   2010 Dec 13 positions  
SOHO-1979   2010 Dec 14 positions Dec 15 2010 02:33:44 B. Zhou
Garradd C/2009 P1 2011 May 30 positions  
Elenin C/2010 X1 2011 Aug 14 positions  
Honda-Mrkos-Pajdusakova 45P 2011 Sep 12/13 positions  
Lovejoy C/2011 W3 2011 Dec 11..21    
SOHO   2012 Jan 26 - Feb 08 positions another six HI1A Kreutz comets, probably known SOHO
SOHO-2242   2012 Feb 21 positions Feb 21 2012 19:18:26 Sergei Schmalz

HI2A Comets

Name Designation Date Links
SWAN C/2006 M4 2006 Dec 22 animation
McNaught C/2006 P1 2007 Jan 16- image Jan 20
image Feb 20
Encke 2P/Encke 2007 Apr 15-17 positions
LINEAR C/2006 VZ13 2007 Jul 20-22 positions
McNaught C/2007 T1 2007 Oct 04-10 stereohunter #329
LONEOS C/2007 F1 2007 Oct 28- position
Wirtanen 46P/Wirtanen 2007 Dec 20-23 positions
Tuttle 8P/Tuttle 2007 Dec 26/27 positions
Holmes 17P/Holmes 2008 Jan 25- positions
Boattini C/2007 W1 2008 May positions
McNaught C/2008 A1 2008 Aug 29 positions
Christensen P/2008 X4 2008 Dec 24-26 positions
Itagaki C/2009 E1 2009 Feb-Mar positions
Garrad C/2008 Q3 2009 Jun 01-03 positions
Christensen C/2006 W3 2009 Sep 20/21 positions
Wild 81P/Wild 2010 Apr 02/03 positions
Hartley 103P/Hartley 2010 Oct positions
Garrad C/2009 P1 2011 Aug positions
Lovejoy C/2011 W3 2011 Dec 03/04 positions
Garrad C/2009 P1 2012 Feb 27-29 positions

HI2B Comets

Name Designation Date Links
McNaught C/2006 P1 2007 Feb 15 message
image
Lovejoy C/2007 E2 2007 Apr 01-11 message
Boattini C/2007 W1 2008 May 26 positions
Lulin C/2007 N3 2009 Feb 02 positions
Itagaki C/2009 E1 2009 Mar 18 positions
Elenin C/2010 X1 2011 Aug 01 message
Garrad C/2009 P1 2011 Aug positions
SWAN C/2011 Q4 2011 Aug/Sep positions