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Circular No. 7223 Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A. IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions) BMARSDEN@CFA.HARVARD.EDU or DGREEN@CFA.HARVARD.EDU (science) URL http://cfa-www.harvard.edu/iau/cbat.html ISSN 0081-0304 Phone 617-495-7244/7440/7444 (for emergency use only) NOVA AQUILAE 1999 S. Nakano, Sumoto, Japan, reports the discovery by Akihiko Tago, Tsuyama, of an apparent nova (mag 8.8) on two TMax-400 films taken on July 13.558, 13.560, 13.565, and 13.567 UT with a 55-mm f/3 camera lens. Tago places the object at R.A. = 19h07m40s, Decl. = +12o32'.2 (equinox 2000.0), and he notes that nothing is visible at this location on his films of July 5 and 9 (limiting mag 11 and 10.5, respectively). On a film taken on July 14.5, Tago derived mag about 8.9 for the star. Nakano also reports the following position from a CCD image obtained by A. Nakamura, Kuma Kogen, on July 14.513: R.A. = 19h07m36s.90, Decl. = +12o31'26".2. The closest star on the Digital Sky Survey is one of mag about 18 located about 4" northeast of Nakamura's position; a red star (R = 16.4) located 8" southwest of Nakamura's position is listed in the USNO A1.0 catalogue. K. Ayani and T. Kawabata, Bisei Astronomical Observatory (BAO), Okayama, report: "We obtained a low-resolution spectrum (range 470-680 nm) of Tago's suspected nova on July 14.6 UT with the BAO 1.01-m telescope. Strong, broad H-alpha and H-beta lines are visible. The H-alpha line has FWHM about 3400 km/s and equivalent width about 50 nm." THE EDGAR WILSON AWARD With reference to IAUC 6936, the Smithsonian Astrophysical Observatory wishes to announce that the 1999 Edgar Wilson Award for the discovery of comets by amateur astronomers is being divided among the following six individuals or groups: Peter Williams, Heathcote, N.S.W., Australia, for C/1998 P1; Roy A. Tucker, Tucson, AZ, U.S.A., for P/1998 QP_54; Michael Jager, Weissenkirchen i.d. Wachau, Austria, for P/1998 U3; Justin Tilbrook, Clare, S.A., Australia, for C/1999 A1; Korado Korlevic and Mario Juric, Visnjan, Croatia, for P/1999 DN_3; and Steven Lee, Coonabarabran, N.S.W., Australia, for C/1999 H1. SUPERNOVA 1999by IN NGC 2841 CCD magnitudes by D. Hanzl, Brno, Czech Republic (comparison star GSC 3431.625, using Tycho magnitudes): June 2.868 UT, V = 14.70 +/- 0.03, V-R = +0.30 +/- 0.05, V-I = +0.8 +/- 0.1; July 4.852, V = 16.1 +/- 0.1, V-R = +0.21 +/- 0.05; 5.860, R = 15.8 +/- 0.2; 5.871, I = 15.3 +/- 0.1. (C) Copyright 1999 CBAT 1999 July 14 (7223) Daniel W. E. Green
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