SUPERNOVA 2009F IN NGC 1725
G. Pignata, J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, P. Lopez, S. Silva, G. Folatelli, D. Iturra, R. Cartier, and F. Forster, Universidad de Chile; B. Conuel, Wesleyan University; and D. Reichart, K. Ivarsen, A. Crain, D. Foster, M. Nysewander, and A. LaCluyze, University of North Carolina at Chapel Hill, on behalf of the CHASE project, report the discovery of an apparent supernova (mag approximately 16.4 +/- 0.3) on an unfiltered image taken on Jan. 4.11 UT with the 0.41-m 'PROMPT 3' telescope located at Cerro Tololo. The new object, which was confirmed at mag approximately 15.5 +/- 0.3 in an image taken on Jan. 5.06, is located at R.A. = 4h59m23s.56 +/- 0".1, Decl. = -11°07'50".1 +/- 0".1 (equinox 2000), which is about 9".8 east and 6".1 north of center of the galaxy NGC 1725. Nothing is visible at this position on archival images taken on 2008 Dec. 23.17 and 29.12 (limiting mag 18.0).

NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars.

2009 January 05

(C) Copyright 2009 CBAT (CBET 1650)

Daniel W. E. Green