Supernova 1987A: Photometry of the Discovery and Pre-Discovery Plates
Abstract
The discover and pre-discovery plates for Supernova 1987A have been analyzed. SN 1987A was found to have B = 5.00 (+/-0.15) on Feb 24.12 UT 1987; and Sanduleak -69^deg^ 202 was B = 12.12 (+/-0.15) on Feb 23.08 UT 1987. These represent, respectively- the second earliest reliable photometric measure for the Supernova and the last known observation of its precursor.
- Publication:
-
The Astronomical Journal
- Pub Date:
- May 1993
- DOI:
- 10.1086/116562
- Bibcode:
- 1993AJ....105.1886S
- Keywords:
-
- Astronomical Photometry;
- Supernova 1987a;
- Aberration;
- Photographic Plates;
- Astrophysics;
- SUPERNOVAE: INDIVIDUAL: 1987A