THE ASTRONOMER Electronic Circular No 395 1990 Mar 19 21.38UT
Microlink:MAG60138 JANET:GMH at UK.AC.RO-GREENWICH.STARLINK
Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise, Basingstoke,
Hants, RG22 4PP, England. Telephone: (0256)471074 Int:+44256471074
Telex: 94082518 Answerback: TAGUY
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COMET CERNIS-KIUCHI-NAKAMURA (1990b)
The following precise positions have been reported:
1990 UT R.A. (1950) Decl. m1 Observer
Mar. 17.47188 1 08 49.19 +44 40 22.1 9.2 Seki
18.44410 1 14 26.17 +45 13 39.7 8.5 "
19.20590 1 18 57.68 +45 39 15.4 Tatum
19.42465 1 20 16.56 +45 46 36.3 8 Kojima
19.42795 1 20 17.73 +45 46 43.3 "
19.43530 1 20 20.37 +45 46 57.0 "
T. Seki (Geisei). 0.60-m reflector.
J. B. Tatum (Climenhaga Observatory, Victoria).
T. Kojima (YGCO Chiyoda Observatory). 0.25-m f/3.4 Wright-Schmidt
camera.
The following preliminary parabolic orbital elements, from the
above observations, are by S. Nakano, Center for Astrophysics:
T = 1990 Mar. 17.128 ET Peri. = 100.367
Node = 347.641 1950.0
q = 1.06971 AU Incl. = 48.143
Ephemeris:
1990 ET R.A. (1950) Decl. Delta r m1
Mar. 5 0 10.07 +37 04.8
10 0 30.94 +40 10.7 1.454 1.076 8.6
15 0 55.29 +43 13.4
20 1 23.79 +46 05.6 1.376 1.071 8.5
25 1 56.98 +48 37.3
30 2 34.97 +50 36.0 1.321 1.091 8.5
Apr. 4 3 17.10 +51 48.7
9 4 01.62 +52 04.8 1.302 1.135 8.6
IAUC 4981
B.Granslo, Norway e-mails the following observation via
STARLINK:
DATE UT MAG MM REF APER TYPE F X COMA DC TAIL PAM OBS
900318.91 8.3 S S 20.3 T 10 50 2.7 3 GRA
Martin Mobberley reports astrometry obtained from Cockfield Station