Central Bureau for Astronomical Telegrams
IAUC 4940: 1989W; 1989a1
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Read IAUC 4941
Circular No. 4940
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Telephone 617-495-7244/7440/7444 (for emergency use only)
TWX 710-320-6842 ASTROGRAM CAM EASYLINK 62794505
MARSDEN or GREEN@CFA.BITNET MARSDEN or GREEN@CFAPS2.SPAN
SUPERNOVA 1989W IN ANONYMOUS GALAXY
C. Pollas, Observatoire de la Cote d'Azur, reports his discovery
on plates taken by A. Maury and himself of a possible supernova 4" east
and 8" north of the nucleus of an anonymous galaxy at R.A. =
13h42m46.3, Decl. = +30d02'53" (equinox 1950.0). The object was at R =
18 on 1989 Dec. 30.24 and 1990 Jan. 3.22 UT.
COMET AARSETH-BREWINGTON (1989a1)
Improved parabolic orbital elements from MPC 15672:
T = 1989 Dec. 27.890 ET Peri. = 205.261
Node = 345.226 1950.0
q = 0.30071 AU Incl. = 88.380
1990 ET R.A. (1950) Decl. Delta r m1
Jan. 13 20 35.54 -44 24.6 1.239 0.558 5.9
15 20 53.69 -43 25.6
17 21 09.54 -42 18.6 1.347 0.646 6.8
19 21 23.41 -41 07.4
21 21 35.61 -39 54.7 1.458 0.734 7.5
23 21 46.40 -38 42.0
25 21 56.02 -37 30.4 1.569 0.821 8.1
27 22 04.66 -36 20.7
29 22 12.46 -35 13.1 1.678 0.905 8.7
31 22 19.55 -34 08.0
Feb. 2 22 26.05 -33 05.3 1.785 0.988 9.2
4 22 32.02 -32 05.2
6 22 37.56 -31 07.4 1.889 1.069 9.7
8 22 42.71 -30 12.0
G. Mengoli and F. Muzzi, Bologna, Italy, report tail lengths from
an exposure with a 0.15-m Schmidt camera (+ Kodak TP 4415 film) on 1989
Dec. 3.197 UT: 1.58 deg in p.a. 357 deg, faint 0.06-deg antitail in
p.a. 177 deg. Total visual magnitudes: Dec. 24.55, 3.2: (A.
Hale, Las Cruces, NM, 10 x 50 binoculars); 27.75, 2.3 (G. Garradd,
Tamworth, N.S.W., 10 x 50 binoculars; 1-deg broad tail in p.a. 260 deg);
29.74, 3.5 (R. H. McNaught, Siding Spring Observatory, naked eye); 1990
Jan. 3.84, 3.6 (A. Pearce, Scarborough, Western Australia, 20 x 80
binoculars; 0.5-deg tail in p.a. 222 deg); 5.84, 4.0 (Pearce).
1990 January 12 (4940) Brian G. Marsden
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