Central Bureau for Astronomical Telegrams
IAUC 5072: 1990f; 1990 KA; 1990 OA
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Read IAUC 5073
Circular No. 5072
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
PERIODIC COMET HONDA-MRKOS-PAJDUSAKOVA (1990f)
Ephemeris extension to IAUC 5035:
1990 ET R.A. (1950) Decl. Delta r m1
Aug. 17 6 42.75 +15 29.9 0.416 0.766 9.8
22 7 20.75 +16 05.2
27 7 51.89 +16 12.6 0.579 0.643 9.0
Sept. 1 8 18.94 +16 00.5
6 8 43.84 +15 31.4 0.778 0.559 8.4
11 9 07.75 +14 45.7
16 9 31.10 +13 44.1 0.995 0.546 8.7
21 9 53.77 +12 29.3
26 10 15.41 +11 05.3 1.203 0.609 10.1
Oct. 1 10 35.77 + 9 36.5
6 10 54.73 + 8 06.6 1.384 0.721 11.9
Total visual magnitude estimates (cf. IAUC 5063): July 29.45
UT, 11.2 (C. S. Morris, Pine Mountain Club, CA, 0.26-m reflector);
Aug. 2.34, 11.3 (J. E. Bortle, Stormville, NY, 0.32-m reflector).
1990 KA
Extended ephemeris from orbital elements on MPC 16588:
1990 ET R.A. (1950) Decl. Delta r V
Aug. 17 17 58.24 -29 53.2 0.564 1.419 16.8
27 18 24.96 -30 48.6
Sept. 6 18 51.09 -31 03.0 0.752 1.515 17.6
16 19 16.37 -30 45.5
26 19 40.76 -30 02.8 0.981 1.620 18.3
1990 OA
Extended ephemeris from orbital elements on MPC 16701:
1990 ET R.A. (1950) Decl. Delta r V
Aug. 17 21 07.55 -23 37.4 0.330 1.336 16.3
27 21 16.41 -25 44.7
Sept. 6 21 25.84 -26 43.2 0.448 1.416 17.4
16 21 36.22 -26 46.6
26 21 47.69 -26 08.1 0.614 1.510 18.4
1990 August 7 (5072) Daniel W. E. Green
Read IAUC 5073
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