[IAUC] IAUC 9077: COMET P/2009 S4 (CATALINA-LINEAR); C/2009 E2-E5, C/2009 F8,, C/2009 F9 [XXXXX-XXXX/XX-F1]
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Lun Sep 28 19:26:11 ART 2009
Circular No. 9077
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
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COMET P/2009 S4 (CATALINA-LINEAR)
J. Scotti, Lunar and Planetary Laboratory, reports his
recovery of comet P/2004 EW_38 (cf. IAUC 8322), noting only stellar
appearance, on CCD images taken with the 1.8-m Spacewatch telescope
at Kitt Peak.
2009 UT R.A. (2000) Decl. Mag.
Sept.21.37293 2 47 29.46 +13 09 41.3 22.0
23.33491 2 46 55.91 +13 08 18.5
28.44718 2 45 04.37 +13 03 17.8 21.9
The indicated correction to the orbit prediction on MPC 59600 is
Delta(T) = +0.02 day. Additional astrometry, the following linked
orbital elements, residuals, and an ephemeris appear on MPEC
2009-S126.
Epoch = 2010 Sept. 1.0 TT
T = 2010 Sept. 3.7086 TT Peri. = 90.1359
e = 0.500013 Node = 49.8835 2000.0
q = 1.794822 AU Incl. = 6.5249
a = 3.589741 AU n = 0.1449137 P = 6.80 years
COMETS C/2009 E2-E5, C/2009 F8, AND C/2009 F9 (SOHO)
Further to IAUCs 9065 and 9070, additional presumed comets
have been found on SOHO website images -- all Kreutz sungrazers
except for C/2009 E3 (Meyer group). C/2009 E2 (also found by B.
Zhou) was small and slightly diffuse (mag about 7). C/2009 E3 was
tiny and stellar in appearance (mag about 7.5-8), and it faded
rapidly. C/2009 E4 was small and slightly diffuse (mag about 6.5-7)
in C3 images; in C2 images it was faint, diffuse, and slightly
elongated. C/2009 E5 was very diffuse (mag about 8). C/2009 F8
was slightly diffuse (mag about 7-7.5) in C3 images, and small and
elongated in C2 images. C/2009 F9 was very small and condensed
(mag about 7.5) in C3 images, and slightly elongated (but stellar
in appearance) in C2 images.
Comet 2009 UT R.A.(2000)Decl. Inst. F MPEC
C/2009 E2 Mar. 1.221 23 07.6 - 8 16 C3 MK 2009-N01
C/2009 E3 7.463 23 17.1 - 3 27 C2 EB 2009-N01
C/2009 E4 10.138 23 44.8 - 5 09 C3/2 WX 2009-N01
C/2009 E5 10.229 23 30.5 - 4 49 C2 BZ 2009-N29
C/2009 F8 16.862 0 04.1 - 2 09 C3/2 MU 2009-N29
C/2009 F9 28.471 0 44.4 + 2 17 C3/2 HS 2009-N29
(C) Copyright 2009 CBAT
2009 September 28 (9077) Daniel W. E. Green
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