Central Bureau for Astronomical Telegrams
IAUC 8738: C/2006 K7-K21, C/2006 L3-L5
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Circular No. 8738
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)
COMETS C/2006 K7-K21, C/2006 L3-L5 (SOHO)
Additional Kreutz sungrazing comets have been found on SOHO
website images (cf. IAUC 8727, 8737; LC = L. Cane). C/2006 K7 is
described by K. Battams as being slightly diffuse and small,
reaching mag 8.1 on May 18.313 UT at 6.1 solar radii. C/2006 K8
was faint, quite diffuse, and too faint for photometry. C/2006 K9
was extremely faint and diffuse. C/2006 K10 was very faint,
diffuse, and slightly elongated. C/2006 K11 appeared small and
stellar in C3 images, while in C2 images it reached mag about 6.5
and had a tail that reached a length of 113" on May 23.254. C/2006
K12 was small, diffuse, and very faint. C/2006 K13 and K14 were a
fairly close pair -- both being very small and faint -- the former
(the leading fragment) being diffuse and the brighter of the two,
and the latter being slightly diffuse. C/2006 K15, K16, K18, K19,
and C/2006 L5 were all faint and slightly diffuse; C/2006 K15 and
K19 were described as tiny, the other two as small. C/2006 K17 and
K20 were diffuse, the former extremely faint and the latter very
small. C/2006 K15-20 all peaked in the magnitude range 8-9.
C/2006 K21 was small and stellar in appearance, peaking at mag
about 4.5 in C3 images at about 13 solar radii; there was a vague
hint of a tail in C2 images. C/2006 L3 was very faint and diffuse.
C/2006 L4 was tiny and slightly diffuse.
Comet 2006 UT R.A.(2000)Decl. Inst. F MPEC
C/2006 K7 May 18.314 3 42.4 +18 00 C2 LC 2006-M28
C/2006 K8 18.898 3 45.2 +18 09 C2 BZ 2006-M28
C/2006 K9 19.913 3 47.6 +18 13 C2 RM 2006-M28
C/2006 K10 20.564 3 51.0 +18 26 C2 WX 2006-M30
C/2006 K11 22.513 4 03.3 +17 20 C3/2 HS 2006-M30
C/2006 K12 22.754 3 59.4 +18 50 C2 HS 2006-M30
C/2006 K13 24.421 4 05.8 +19 08 C2 GS 2006-M30
C/2006 K14 24.438 4 05.8 +19 09 C2 RM 2006-M30
C/2006 K15 25.004 4 07.7 +19 12 C2 TC 2006-M64
C/2006 K16 25.913 4 11.4 +19 22 C2 RM 2006-M64
C/2006 K17 25.938 4 11.5 +19 21 C2 RM 2006-M64
C/2006 K18 26.413 4 11.9 +19 24 C2 GS 2006-M64
C/2006 K19 29.300 4 23.9 +19 51 C2 HS 2006-M64
C/2006 K20 29.408 4 24.7 +19 54 C2 TC 2006-M64
C/2006 K21 29.554 4 32.8 +17 18 C3/2 VB 2006-O20
C/2006 L3 June 1.908 4 38.1 +20 21 C2 GS 2006-O20
C/2006 L4 4.592 4 48.2 +20 39 C2 WX 2006-O20
C/2006 L5 8.058 5 00.7 +20 56 C2 HS 2006-O20
(C) Copyright 2006 CBAT
2006 August 9 (8738) Daniel W. E. Green
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