Central Bureau for Astronomical Telegrams
IAUC 6719: C/1997 P2; C/1997 J2
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Circular No. 6719
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
BMARSDEN@CFA.HARVARD.EDU or DGREEN@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/cfa/ps/cbat.html
Phone 617-495-7244/7440/7444 (for emergency use only)
COMET C/1997 P2 (SPACEWATCH)
Further precise CCD positions have been reported as follows:
1997 UT R.A. (2000) Decl. m1 Observer
Aug. 13.91872 21 39 21.79 - 6 36 03.4 Pravec
13.92189 21 39 21.73 - 6 36 03.5 "
13.94134 21 39 21.22 - 6 36 02.0 18.7 "
13.97203 21 39 20.37 - 6 35 59.1 18.8 Tichy
13.97407 21 39 20.30 - 6 35 59.5 "
13.97853 21 39 20.17 - 6 35 58.8 "
13.98238 21 39 20.16 - 6 35 58.6 "
13.99083 21 39 19.96 - 6 35 57.4 18.8 Gajdos
14.00556 21 39 19.48 - 6 35 57.4 "
14.35472 21 39 10.56 - 6 35 37.6 Balam
14.36322 21 39 10.31 - 6 35 37.1 "
14.37449 21 39 10.01 - 6 35 35.9 "
P. Pravec (Ondrejov). 0.65-m f/3.6 reflector. Condensed coma 15" in
diameter, no tail apparent.
M. Tichy and Z. Moravec (Klet). 0.57-m f/5.2 reflector.
S. Gajdos, P. Koleny and L. Kornos (Modra). 0.6-m reflector. Poor images.
D. D. Balam (Dominion Astrophysical Observatory). 1.8-m reflector.
The following parabolic orbital elements by the undersigned are from
the 18 available observations. The comet is possibly of short period.
T = 1997 Oct. 27.984 TT Peri. = 49.158
Node = 292.880 2000.0
q = 3.20655 AU Incl. = 9.403
1997 TT R. A. (2000) Decl. Delta r Elong. Phase m1
Aug. 10 21 41.03 - 6 40.3 2.293 3.295 169.6 3.2 18.5
20 21 36.75 - 6 30.8 2.269 3.274 172.2 2.4 18.4
30 21 32.68 - 6 25.5 2.271 3.256 164.6 4.7 18.4
Sept. 9 21 29.40 - 6 22.3 2.300 3.241 155.0 7.6 18.4
19 21 27.41 - 6 18.8 2.352 3.228 145.2 10.2 18.4
29 21 27.04 - 6 13.0 2.426 3.219 135.6 12.6 18.5
COMET C/1997 J2 (MEUNIER-DUPOUY)
Corrigendum. On IAUC 6686, line 2, for 460-550 nm read 360-450 nm
(C) Copyright 1997 CBAT
1997 August 16 (6719) Brian G. Marsden
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