Central Bureau for Astronomical Telegrams
IAUC 4701: 1989b; 1989 AC; 1987g
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Read IAUC 4702
Circular No. 4701
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 HELIN-ROMAN-CROCKETT (1989b)
Eleanor Helin, Jet Propulsion Laboratory, reports her discovery
of a comet on films taken by Ron Helin, Brian Roman and Randy Crockett
and herself with the 0.46-m Schmidt telescope at Palomar:
1989 UT R.A. (1950) Decl. m1
Jan. 2.43 8 37 5 +21 20
3.43733 8 36 56.10 +21 23 20.8 15.5
3.46354 8 36 55.25 +21 23 24.6
5.34 8 35 9 +21 30
The object is condensed with a coma and small tail to the northwest.
The accurate measurements are by E. Majkowski.
1989 AC
J.-L. Heudier, R. Chemin, A. Maury and C. Pollas report their
discovery of a fast-moving asteroidal object with the 0.9-m
Schmidt telescope at Caussols:
1989 UT R.A. (1950) Decl. Mag.
Jan. 4.81250 3 37 25.85 +17 43 49.8 12
4.85428 3 36 56.46 +17 41 53.2
4.87014 3 36 45.88 +17 41 10.1
4.91181 3 36 16.24 +17 39 11.2
PERIODIC COMET TEMPEL 2 (1987g)
Ephemeris continuation from the orbital elements on MPC 11522:
1989 ET R.A. (1950) Decl. Delta r m1
Jan. 14 23 57.14 -12 10.3 2.093 1.843 12.4
24 0 19.84 - 9 22.5
Feb. 3 0 41.56 - 6 40.7 2.379 1.968 13.3
13 1 02.47 - 4 06.0
23 1 22.71 - 1 39.8 2.667 2.096 14.1
Mar. 5 1 42.38 + 0 37.6
15 2 01.59 + 2 45.5 2.944 2.224 14.8
1989 January 5 (4701) Brian G. Marsden
Read IAUC 4702
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