[IAUC] IAUC 9021: COMET P/2009 D1 (LINEAR); C/2008 U5-U8 [25139-2009/08-R1]
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Circular No. 9021
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
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COMET P/2009 D1 (LINEAR)
J. V. Scotti, Lunar and Planetary Laboratory, University of
Arizona, reports his recovery of comet P/2001 CV_8 (cf. IAUC 7581)
on CCD images taken with the Spacewatch 1.8-m f/2.7 reflector. On
the Feb. 19 images, Scotti noted the comet to be slightly diffuse
with a 0'.3 tail in p.a. 295 deg.
2009 UT R.A. (2000) Decl. Mag. Observer
Feb. 19.53123 14 25 47.23 -18 07 57.9 20.9 Scotti
19.54112 14 25 47.49 -18 08 01.9 20.8 "
19.54978 14 25 47.71 -18 08 05.6 21.0 "
20.49075 14 26 12.21 -18 14 49.9 "
20.50000 14 26 12.30 -18 14 54.4 20.7 "
20.50910 14 26 12.53 -18 14 59.1 "
The indicated correction to the prediction on MPC 54170 is Delta(T)
= -0.37 day [and to the prediction in the 2008/2009 Comet Handbook,
Delta(T) = -0.24 day]. The following orbital elements by B. G.
Marsden are from 141 observations, 2001-2009 (mean residual 0".7):
Epoch = 2008 Oct. 21.0 TT
T = 2008 Oct. 10.9768 TT Peri. = 151.5970
e = 0.444137 Node = 359.8931 2000.0
q = 2.159879 AU Incl. = 9.0351
a = 3.885631 AU n = 0.1286802 P = 7.66 years
COMETS C/2008 U5-U8 (SOHO)
Further to IAUC 9020, additional near-sun presumed comets have
been found on SOHO website images -- all Kreutz sungrazers except
for C/2008 U6 (non-group), which was small and stellar in
appearance (mag about 7.5). C/2008 U5 was extremely faint (mag
about 8.5) and very diffuse. C/2008 U7 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.
C/2008 U8 was very diffuse (mag about 8-8.5).
Comet 2008 UT R.A.(2000)Decl. Inst. F MPEC
C/2008 U5 Oct. 18.188 13 28.1 -10 55 C2 RM 2009-B66
C/2008 U6 18.440 13 31.0 - 7 53 C2 MK 2009-B67
C/2008 U7 20.571 13 29.8 -12 09 C3/2 RK 2009-B67
C/2008 U8 20.746 13 36.0 -11 41 C2 TH 2009-B67
(C) Copyright 2009 CBAT
2009 February 20 (9021) Daniel W. E. Green
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