Supernova 1987E in NGC 4725
Abstract
M. Rosa, European Southern Observatory, reports the following improved measurement for the SN: R.A. = 12h49m49.4 (+/- 0s.5), Decl. = +25 35'40" (+/- 1"), equinox 1987.5. Improved reduction of CCD frames (cf. IAUC 4373) yields the following photometry: Apr. 24.21 UT, V = 15.65, B-V = +1.50 (+/- 0.05); 25.14, 15.70, +1.60. M. Koishikawa, Ayashi Station, Sendai Observatory, reports that a patrol camera plate taken on Apr. 3.680 UT (20-min exposure) shows no stellar object brighter than mag 16.5 in the position of the reported SN.
- Publication:
-
International Astronomical Union Circular
- Pub Date:
- April 1987
- Bibcode:
- 1987IAUC.4374....2R