[IAUC] IAUC 9160: COMET P/2010 P2 (LINEAR); C/2009 W6-W11 [25139-2011/04-R1]
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Vie Ago 13 14:05:14 ART 2010
Circular No. 9160
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
CBAT Director: D. W. E. Green, Room 209; Department of
Earth and Planetary Sciences; Harvard University;
20 Oxford St.; Cambridge, MA 02138; U.S.A.
CBAT en IAU.ORG; CBATIAU en EPS.HARVARD.EDU
URL http://www.cfa.harvard.edu/iau/cbat.html ISSN 0081-0304
COMET P/2010 P2 (LINEAR)
H. Sato, Tokyo, reports his recovery of comet P/1999 U3 (cf.
IAUCs 7295, 7296, 7302) showing a 15" coma on CCD images obtained
remotely with a 0.25-m f/3.4 reflector located at the RAS
Observatory near Mayhill, NM, U.S.A.; he noted a 30" tail in p.a.
290 deg on Aug. 13.4 UT.
2010 UT R.A. (2000) Decl. Mag.
Aug. 12.43975 6 14 58.28 +37 09 58.3
12.44348 6 14 58.95 +37 09 58.3
12.44627 6 14 59.38 +37 09 58.1 17.6
13.43583 6 17 50.59 +37 06 57.7
13.43963 6 17 51.33 +37 06 55.8
13.44343 6 17 52.01 +37 06 55.1 17.7
The indicated correction to the prediction by S. Nakano on MPC
59600 is Delta(T) = -0.22 day. The following linked orbital
elements by G. V. Williams and an ephemeris appear on MPEC 2010-P57.
Epoch = 2010 July 23.0 TT
T = 2010 July 18.3009 TT Peri. = 110.1566
e = 0.610975 Node = 305.9731 2000.0
q = 1.921410 AU Incl. = 20.8851
a = 4.939040 AU n = 0.0897925 P = 10.98 years
COMETS C/2009 W6-W11 (SOHO)
Further to IAUC 9156, additional near-sun presumed comets have
been found on SOHO website images, all Kreutz sungrazers except for
C/2009 W8 (non-group). C/2009 W6 was small (peak mag about 7.5).
C/2009 W10 was very diffuse (mag about 8), while C/2009 W11 was
condensed (peak mag about 7-7.5). The others' peak magnitudes were
about 7.5-8, with C/2009 W7 being slightly diffuse and the other
two being small and stellar in appearance.
Comet 2009 UT R.A.(2000)Decl. Inst. F MPEC
C/2009 W6 Nov. 19.064 15 34.4 -21 00 C2 JR 2010-L91
C/2009 W7 22.679 15 47.0 -22 52 C3/2 MK 2010-L91
C/2009 W8 23.596 15 48.8 -21 43 C3/2 TS 2010-L91
C/2009 W9 25.188 16 01.9 -22 26 C2 MK 2010-L91
C/2009 W10 25.771 16 05.8 -22 40 C2 MK 2010-L91
C/2009 W11 27.604 16 12.3 -22 53 C2 MK 2010-L91
(C) Copyright 2010 CBAT
2010 August 13 (9160) Daniel W. E. Green
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