Image diameter-magnitude relations for stars on ESO/SERC R and J films.
Abstract
Calibration curves are presented for deriving approximate magnitudes from the ESO R and SERC J survey film copies. The importance of a detailed description of how and where the star images are measured is underlined. As a by-product, we determined the average limiting magnitude for ESO R as 21.5 m, and for SERC J as 22.4 m.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- August 1992
- Bibcode:
- 1992A&A...262..369H
- Keywords:
-
- Brightness Distribution;
- Diameters;
- Image Processing;
- Stellar Luminosity;
- Calibrating;
- Sky Surveys (Astronomy);
- Astronomy