Central Bureau for Astronomical Telegrams
IAUC 5037: 1990g; 1990I
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Read IAUC 5038
Circular No. 5037
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
COMET McNAUGHT-HUGHES (1990g)
Further precise positions by R. H. McNaught with the Uppsala
Southern Schmidt telescope at Siding Spring:
1990 UT R.A. (1950) Decl.
June 20.63221 17 33 41.34 -65 23 23.1
21.38729 17 30 06.04 -65 16 42.4
21.78733 17 28 11.57 -65 12 59.9
22.39919 17 25 19.13 -65 07 01.7
22.68414 17 23 57.85 -65 04 10.2
22.79450 17 23 26.65 -65 03 01.1
23.44047 17 20 26.13 -64 56 14.9
Preliminary parabolic orbital elements by B. G. Marsden,
Center for Astrophysics, from 9 observations June 19-23:
T = 1991 Mar. 6.45 ET Peri. = 27.31
Node = 234.52 1950.0
q = 2.4159 AU Incl. = 131.47
1990 ET R.A. (1950) Decl. Delta r m1
June 18 17 46.33 -65 42.8 2.859 3.674 16.9
23 17 22.49 -65 00.9
28 16 59.81 -63 58.5 2.789 3.600 16.8
July 3 16 39.03 -62 37.5
8 16 20.62 -61 00.9 2.762 3.527 16.7
13 16 04.73 -59 12.2
18 15 51.33 -57 15.2 2.776 3.455 16.6
23 15 40.25 -55 13.3
28 15 31.24 -53 09.6 2.826 3.384 16.5
SUPERNOVA 1990I IN NGC 4650A
McNaught also reports the following position of SN 1990I
obtained from films obtained with the Uppsala Southern Schmidt
telescope on June 15 and 19: R.A. = 12h42m05s.73, Decl. = -40 27'12".5
(equinox 1950.0; accuracy +/- 0".5); offsets from the nucleus are
13".4 east, 44".9 south.
1990 June 25 (5037) Daniel W. E. Green
Read IAUC 5038
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