Circular No. 4023 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 617-495-7244/7440/7444 NOVA VULPECULAE 1984 No. 2 Peter Collins, Cardiff, California, reports his discovery of a nova at mv ~ 6.8 on Dec. 22.13 UT. Relay of the discovery by G. M. Hurst in Europe prompted P. Wils, Niel, Belgium, to confirm the object at mv ~ 6.5 on Dec. 22.79. Two semi-accurate positions have been provided via Collins: R.A. = 20h24m40s3, Decl. = +27deg40'45", equinox 1950.0, +/- 2" (A. Longmore, U.K. Infrared Telescope, Mauna Kea); and R.A. = 20h24m43s0, Decl. = +27deg41'12", equinox 1950.0, +/- 10" (J. Huchra, 1.5-m reflector, Whipple Observatory). Subsequent visual magnitude estimates: Dec. 23.094, 5.6 (Collins); 23.108, 6.1 (C. S. Morris, Whitaker Peak, CA); 23.928, 5.8 (D. W. E. Green, Cambridge, MA); 24.023, 5.7 (P. Dombrowski, Glastonbury, CT, via J. Mattei, AAVSO). NOVA AQUILAE 1984 H. Kosai, Tokyo Astronomical Observatory, communicates the following precise position, measured from an objective-prism plate taken by T. Soyano with the 1.05-m Kiso Schmidt on Dec. 9.37 UT: R.A. = 19h14m05s82, Decl. = +3deg37'55"4 (equinox 1950.0); emission lines are present. Visual magnitude estimates: Dec. 13.37, 12.7; 14.39, 12.6. NOVA VULPECULAE 1984 No. 1 Visual magnitude estimates: Nov. 17.02 UT, 9.7 (J. DeYoung, Alexandria, VA); 17.7, 9.3 (M. Verdenet, Bourbon-Lancy, France); 17.99, 9.6 (DeYoung); 20.8, 9.3 (Verdenet); 22.96, 9.7 (DeYoung); 23.97, 9.6 (DeYoung); 24.8, 9.2 (Verdenet); 24.96, 9.6 (DeYoung); 26.99, 9.2 (DeYoung); 28.00, 8.9 (J. E. Bortle, Stormville, NY); 29.01, 9.2 (P. Maley, Houston, TX); 30.01, 9.4 (Maley); Dec. 3.00, 9.8 (Bortle); 3.98, 9.8 (Bortle); 8.08, 9.7 (C. Womack, Lewisville, TX); 10.10, 9.7 (Collins); 11.13, 9.7 (Womack); 14.10, 9.7 (Womack). COMET LEVY-RUDENKO (1984t) Total visual magnitude estimates: Dec. 4.97 UT, 8.4 (Green, Harvard College Observatory, 0.23-m refractor); 17.73, 8.3 (J.-C. Merlin, Pic du Midi, 0.07-m reflector); 17.97, 8.3 (Bortle, 0.32-m reflector); 18.09, 8.2 (C. Spratt, Victoria, BC, 0.20-m reflector); 23.08, 8.2 (Morris, 20 x 80 binoculars). 1984 December 24 (4023) Daniel W. E. Green
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