Central Bureau for Astronomical Telegrams
IAUC 3843: 1983l; 1983k; 1982k
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Read IAUC 3844
Circular No. 3843
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
TWX 710-320-6842 ASTROGRAM CAM Telephone 617-864-5758
COMET CERNIS (1983l)
The following precise positions have been reported:
1983 UT R.A. (1950.0) Decl. m1 m2 Observer
July 21.45284 2 42 51.12 +11 15 31.3 9 Gibson
21.47089 2 42 51.05 +11 15 18.4 "
21.65486 2 42 50.01 +11 13 09.9 14 Gilmore
21.67118 2 42 49.99 +11 12 58.0 "
24.76169 2 42 28.47 +10 34 55.1 14 "
24.77141 2 42 28.37 +10 34 47.7 "
J. Gibson (Palomar Mountain Observatory). 1.2-m Schmidt.
A. C. Gilmore (Mount John Observatory). Object diffuse with
condensation, no tail. Measurer: P. M. Kilmartin.
Total visual magnitude estimates by C. S. Morris, Harvard, MA
(0.25-m reflector): July 22.33 UT, 10.5; 23.33, 10.4.
COMET IRAS (1983k)
J. Davies and S. Green, University of Leicester and
Rutherford-Appleton Laboratory, communicate the following observations
by the Infrared Astronomical Satellite, apparently of this comet
(cf. IAUC 3839). Precise positions are urgently required.
1983 UT R.A. (1950.0) Decl.
July 22.14423 12 02.32 -43 18.2
22.21574 12 02.29 -43 15.7
Corrigendum: on IAUC 3839, the letter s in the right-ascension
column should have been placed two lines lower down.
PERIODIC COMET KOPFF (1982k)
Total visual magnitude estimates: May 21.88 UT, 9.4 (J.-C.
Merlin, Le Creusot, France, 0.26-m reflector); 29.88, 8.9 (Merlin);
June 6.22, 9.5 (C. E. Spratt, Victoria, BC, 0.20-m reflector);
9.17, 8.2 (D. W. E. Green, Harvard, MA, 20 x 80 binoculars);
14.20, 9.1 (Spratt); 27.89, 8.4 (Merlin); July 4.10, 7.7 (J.
Bortle, Stormville, NY, 10 x 50 binoculars); 11.13, 7.6 (Morris,
20 x 80 binoculars); 14.11, 7.7 (Morris); 15.10, 7.5 (Bortle).
1983 July 25 (3843) Brian G. Marsden
Read IAUC 3844
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