[IAUC] IAUC 9031: COMET P/2009 F3 (LINEAR); C/2008 X7-X12 [25139-2009/08-R1]
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Circular No. 9031
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
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COMET P/2009 F3 (LINEAR)
E. Guido, G. Sostero, and P. Camilleri report their recovery
of comet P/2001 MD_7 (cf. IAUC 7660) on unfiltered CCD exposures
obtained remotely with the RAS Observatory 0.25-m f/3.4 reflector
near Mayhill, NM, U.S.A., on Mar. 17 and 18 (with ten stacked 120-s
images on Mar. 18.49 UT showed a diffuse coma about 15" in diameter)
and on additional exposures obtained on Mar. 20 remotely with the
0.35-m f/6.7 reflector of Grove Creek Observatory at Trunkey, N.S.W.,
Australia.
2009 UT R.A. (2000) Decl. Mag.
Mar. 17.49833 19 43 45.97 -14 58 54.1 18.2
17.50484 19 43 46.60 -14 58 49.5 18.1
18.47991 19 45 35.79 -14 55 18.7 18.9
18.49643 19 45 37.64 -14 55 18.3 18.3
20.74117 19 49 50.08 -14 46 52.0 18.2
20.75159 19 49 51.24 -14 46 49.6 18.1
20.77107 19 49 53.43 -14 46 45.1 18.0
The indicated correction to the predictions on MPC 56804 and the
2008-2009 Comet Handbook is Delta(T) = +0.01 day. Linked orbital
elements by B. G. Marsden and an ephemeris appear on MPEC 2009-F51.
COMETS C/2008 X7-X12 (SOHO)
Further to IAUC 9030, additional Kreutz sungrazers have been
found on SOHO website images. C/2008 X7 and C/2008 X8 were very
diffuse (peak magnitudes about 8 and 7.5-8, respectively). C/2008
X9 was small and condensed (mag about 7-7.5). C/2008 X10 was tiny
and stellar in appearance (mag about 8). C/2008 X11 was small and
stellar in appearance (mag about 7) in C3 images, but slightly
diffuse with a short, faint, diffuse tail in C2 images. C/2008 X12
was small and stellar in appearance (mag about 6.5) in C3 images,
but condensed with a very thin, faint tail in C2 images.
Comet 2008 UT R.A.(2000)Decl. Inst. F MPEC
C/2008 X7 Dec. 1.329 16 31.0 -23 40 C2 MU 2009-E60
C/2008 X8 2.686 16 38.1 -23 55 C2 MA 2009-E60
C/2008 X9 3.604 16 41.2 -24 02 C2 EB 2009-E60
C/2008 X10 3.938 16 42.5 -24 05 C2 RK 2009-E61
C/2008 X11 5.154 16 48.0 -25 51 C3/2 SY 2009-E61
C/2008 X12 8.846 17 02.9 -26 54 C3/2 MU 2009-E61
(C) Copyright 2009 CBAT
2009 March 20 (9031) Daniel W. E. Green
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