[IAUC] IAUC 8856: P/2007 N2 = P/2002 O5 [25139-2008/05-R1]
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Dom Jul 15 23:17:09 ART 2007
Circular No. 8856
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
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COMET P/2007 N2 = P/2002 O5 (NEAT)
Comet P/2002 O5 (cf. IAUC 7942) has been recovered apparently
independently on CCD images obtained at three different
observatories:
2007 UT R.A. (2000) Decl. Mag. Observer
July 15.22509 17 05 36.69 -12 42 18.5 15.8 LINEAR
15.23619 17 05 38.35 -12 41 00.0 16.0 "
15.24728 17 05 39.89 -12 39 40.4 16.6 "
15.25845 17 05 41.73 -12 38 23.8 15.9 "
15.26954 17 05 43.38 -12 37 05.8 15.9 "
16.00235 17 07 43.80 -11 11 33.0 16.4 Fratev
16.00372 17 07 44.31 -11 11 26.6 17.0 Lombardi
16.00635 17 07 44.71 -11 11 07.8 17.1 "
16.00872 17 07 45.02 -11 10 49.7 16.5 Fratev
16.01498 17 07 45.87 -11 10 06.3 16.3 "
16.02155 17 07 46.73 -11 09 19.2 16.5 "
LINEAR (Socorro, NM). 1.0-m f/2.15 reflector. Observations
identified via the normal checking of data by the Minor Planet
Center.
G. Lombardi and E. Pettarin (Farra d'Isonzo, Italy). 0.40-m f/4.5
reflector. USNO-A2.0 catalogue. Comet has a diffuse coma of
diameter about 10" and a tail about 15" long in p.a. 135 deg.
F. Fratev and E. Mihaylova (Plana, Bulgaria). 0.25-m f/3.2
reflector. USNO-B1.0 catalogue. Coma diameter about 25"; total
red mag 16.0.
The correction to the predictions on MPC 51823 and in the
2007 Comet Handbook is Delta(T) = -0.36 day. The following linked
orbital elements are by B. G. Marsden, from 254 observations,
2002-2007 (mean residual 0".7):
Epoch = 2002 July 25.0 TT
T = 2002 Aug. 3.10144 TT Peri. = 15.30571
e = 0.5973957 Node = 282.20995 2000.0
q = 1.1742394 AU Incl. = 20.39966
a = 2.9166089 AU n = 0.19787311 P = 4.98 years
Epoch = 2007 Aug. 8.0 TT
T = 2007 July 25.90695 TT Peri. = 15.27124
e = 0.5976949 Node = 282.20178 2000.0
q = 1.1733898 AU Incl. = 20.40165
a = 2.9166666 AU n = 0.19786724 P = 4.981 years
(C) Copyright 2007 CBAT
2007 July 16 (8856) Daniel W. E. Green
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