Central Bureau for Astronomical Telegrams
IAUC 4812: 1989M; 1989a; 1989e
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Read IAUC 4813
Circular No. 4812
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 1989M IN NGC 4579
R. Evans, Hazelbrook, N.S.W., reports that he failed to detect
this supernova to mag 15.5 on June 24.4 UT.
COMET YANAKA (1989a)
Ephemeris extension to IAUC 4738 from elements on MPC 14747:
1989 ET R.A. (1950) Decl. Delta r m1
June 23 14 38.70 +45 13.7 3.053 3.332 14.7
July 3 14 40.70 +43 21.9
13 14 44.43 +41 23.7 3.373 3.508 15.1
23 14 49.66 +39 22.6
Aug. 2 14 56.17 +37 21.4 3.702 3.684 15.5
12 15 03.75 +35 22.2
22 15 12.23 +33 27.0 4.032 3.861 15.9
Sept. 1 15 21.45 +31 37.1
11 15 31.29 +29 53.8 4.354 4.037 16.3
21 15 41.62 +28 18.0
Oct. 1 15 52.34 +26 50.7 4.660 4.213 16.6
COMET SHOEMAKER (1989e)
Ephemeris extension to IAUC 4732 from elements on MPC 14461:
1989 ET R.A. (1950) Decl. Delta r m1
June 23 8 40.99 +62 23.4 3.509 2.913 15.4
July 3 9 01.18 +63 07.6
13 9 23.83 +63 51.8 3.617 3.005 15.6
23 9 48.99 +64 34.9
Aug. 2 10 16.81 +65 15.6 3.667 3.107 15.7
12 10 47.37 +65 52.2
22 11 20.72 +66 22.5 3.674 3.218 15.9
Sept. 1 11 56.77 +66 43.7
11 12 35.22 +66 53.1 3.661 3.337 16.1
21 13 15.47 +66 47.7
Oct. 1 13 56.73 +66 25.6 3.653 3.461 16.2
11 14 37.99 +65 45.9
21 15 18.24 +64 49.6 3.673 3.591 16.4
1989 July 13 (4812) Daniel W. E. Green
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