Shao reports the discovery of a supernova on the above-mentioned exposures for 1977 UB by Schwartz and McCrosky. It is located at R.A. = 2h01m13s.10, Decl. = +11o43'30".3 (equinox 1950.0), 16" west and 5" north of the nucleus of a faint spiral galaxy; the supernova's visual magnitude faded from ~ 17.8 on Nov. 12 to ~ 18.1 on Nov. 15. S. J. Bus, California Institute of Technology, informs us that the supernova is also present on the discovery plate and subsequent exposures of 1977 UB with the Palomar 122-cm Schmidt telescope, as well as on an exposure with the 46-cm Schmidt on Oct. 11. On Oct. 11 and 18-19 mv was ~ 16.5 or slightly brighter.
International Astronomical Union Circular
- Pub Date:
- November 1977