[IAUC] IAUC 8795: P/2007 A3 [25139-2007/05-R1]
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Circular No. 8795
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
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COMET P/2007 A3 (PETRIEW)
F. Fratev, E. Mihaylova, and A. Kirchev, Sofia, Bulgaria,
report the recovery of comet P/2001 Q2 (cf. IAUC 7686) on
unfiltered CCD images taken with a 0.25-m f/3.2 reflector at
Zvezdno Obshtestvo Observatory (Plana), noting a diffuse coma of
diameter about 0'.2. Additional CCD astrometry has been reported
by L. Buzzi and F. Luppi (Varese, Italy, 0.60-m reflector; comet
approximately 1' east of prediction; quite diffuse with a round
inner coma of size about 15"-20" in stacked 15-s exposures), W.
Hasubick (Buchloe, Germany), and K. Kadota (Ageo, Saitama-ken,
Japan, 0.25-m reflector; coma diameter 0'.7; diffuse with moderate
condensation and no tail).
2007 UT R.A. (2000) Decl. Mag. Observer
Jan. 11.69458 21 15 04.98 - 9 04 27.9 16.1 Fratev
11.69961 21 15 06.11 - 9 04 20.7 16.1 "
11.70273 21 15 06.61 - 9 04 21.2 16.1 "
13.70378 21 22 24.07 - 8 43 33.7 15.9 "
13.71309 21 22 26.41 - 8 43 24.8 15.9 "
13.71569 21 22 27.03 - 8 43 24.3 15.9 "
13.71957 21 22 27.88 - 8 43 24.3 Buzzi
13.72247 21 22 28.45 - 8 43 23.6 "
13.72301 21 22 28.57 - 8 43 16.1 15.9 Fratev
13.72495 21 22 29.04 - 8 43 21.5 Buzzi
13.72621 21 22 29.33 - 8 43 21.3 17.3 Hasubick
13.72713 21 22 29.33 - 8 43 20.5 15.9 Fratev
13.72734 21 22 29.57 - 8 43 19.4 Buzzi
13.73018 21 22 30.20 - 8 43 17.6 16.5 "
14.37541 21 24 52.63 - 8 36 22.8 Kadota
14.37720 21 24 53.03 - 8 36 21.5 "
14.37906 21 24 53.46 - 8 36 20.6 15.1 "
The indicated correction to the prediction on MPC 51822 is
Delta(T) = -0.04 day. The following orbital elements are by B. G.
Marsden, from 434 observations 2001-2007 (mean residual 0'.7):
Epoch = 2007 Mar. 1.0 TT
T = 2007 Feb. 24.5806 TT Peri. = 181.9215
e = 0.698129 Node = 214.1025 2000.0
q = 0.937602 AU Incl. = 13.9747
a = 3.105970 AU n = 0.1800563 P = 5.47 years
(C) Copyright 2006 CBAT
2007 January 14 (8795) Daniel W. E. Green
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