G. M. Hurst, Basingstoke, England, reports the discovery of an apparent supernova (mag about 16) by Mark Armstrong, Rolvenden, on an unfiltered CCD image obtained on Mar. 10.219 UT with a 0.20-m reflector in the course of the U.K. Nova/Supernova Patrol. An image obtained on Mar. 12.115 by Armstrong yields mag 15.5 and the following position: R.A. = 18h22m37s.40, Decl. = +15o42'08".4 (equinox 2000.0), which is about 30" northwest of the center of NGC 6627. The object is not present in the Vickers CCD atlas or the Palomar Sky Survey, nor does it appear on earlier U.K. patrol images obtained during 1997 July 28-Oct. 21. T. Boles, Wellingborough, England, imaged the galaxy on Mar. 12.156, also finding SN 1998V near mag 15.5 (unfiltered CCD). Hurst further reports that there is no star present in the USNO A1.0 catalogue to mag 19. S. Nakano, Sumoto, Japan, forwards the following precise position end figures and magnitude for SN 1998V, measured by Y. Kushida from a CCD image taken by R. Kushida on Mar. 13.75 UT with a 0.40-m reflector at Yatsugatake South Base Observatory: 37s.40, 07".7, V = 15.1.
International Astronomical Union Circular
- Pub Date:
- March 1998