Circular No. 3663 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 HARTLEY (1982b) K. S. Russell, U.K. Schmidt Telescope Unit, telexes that Marc Hartley has discovered a comet on exposures with the 1.2-m Schmidt telescope at Siding Spring. Russell's measurements yield: 1982 UT R. A. (1950) Decl. m1 Feb. 5.73327 12 29 20.14 - 6 46 19.4 ~14 6.75184 12 32 09.67 - 7 13 17.2 COMET HARTLEY (1982c) Russell also provides measurements of a second comet, discovered by Hartley on the same exposures: 1982 UT R. A. (1950) Decl. m1 Feb. 5.73327 12 31 58.81 - 7 04 10.1 ~17 6.75184 12 34 51.53 - 7 31 24.4 Nothing is reported about the appearance of either comet. Russell notes the remarkable similarity of the motions of the two objects and suggests that they may be genetically related. PERIODIC COMET SCHWASSMANN-WACHMANN 1 Further total magnitude estimates: Jan. 27.40 UT, 12.3 (C. S. Morris, Harvard, MA, 0.25-m reflector; visual); 27.96, 13.5 (A. Parravano, I. Ferrin and E. Guzman, Merida, Venezuela; photographic; fan-like coma); 29.37, 12.5 (Morris); Feb. 2.37, 12.8 (Morris). NOVA AQUILAE 1982 J. Mattei, American Association of Variable Star Observers, informs us that an independent visual discovery of this object was apparently made on Jan. 28.5 UT by K. Beckmann, Union, MO, but bad weather prevented confirmation. The visual magnitude estimates by J. Morgan, Prescott, AZ (cf. IAUC 3661), have been revised (using reference stars SAO 124563 and 124601) and extended as follows: Jan. 29.6 UT, 7.1; 30.6, 7.4; Feb. 1.5, 8.0; 2.6, 8.2; 3.6, 8.6; 5.5, 9.1. P. Collins, Cambridge, MA, has made the following additional visual magnitude estimates: Feb. 2.5 UT, 8.4; 5.5, 9.4; 7.4, 9.5. 1982 February 8 (3663) Brian G. Marsden
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