Supernova 1996ca in NGC 7300
Abstract
S. Nakano, Sumoto, Japan, reports the discovery by Masakatsu Aoki, Tsukioka Cho, Toyama, of a supernova (mag 16.5) on unfiltered CCD frames taken on Dec. 15.462 UT with a 0.43-m f/6 reflector. SN 1996ca is located at R.A. = 22h30m59s.26, Decl. = -13o59'50".9 (equinox 2000.0), which is 8".7 west and 20".5 north of the center of NGC 7300. No star appears at this location on numerous patrol frames up through Dec. 3. P. Garnavich and R. Kirshner, Harvard-Smithsonian Center for Astrophysics, report that P. Berlind obtained a spectrogram of SN 1996ca on Dec. 17.1 UT with the 1.5-m Tillinghast telescope at the F. L. Whipple Observatory on Mount Hopkins; the spectrum shows this to be a type-Ia supernova, 3-5 days past maximum. Narrow emission lines from the host galaxy indicate a recession velocity of 5100 km/s.
- Publication:
-
International Astronomical Union Circular
- Pub Date:
- December 1996
- Bibcode:
- 1996IAUC.6523....2N