Improved CCD Standard Fields
Abstract
We have combined multiple nights of CCD observations of NGC 7790, NGC 7006 and NGC 4147 in order to establish a deep sequence of photometric standards whose errors have been objectively derived through statistical comparisons. In addition to extending these previously studied fields to a fainter limit, we have increased the range in observed color, making the new mean sequences more suitable for deriving photometric transformation coefficients. (SECTION: Stars)
- Publication:
-
Publications of the Astronomical Society of the Pacific
- Pub Date:
- July 1992
- DOI:
- 10.1086/133029
- Bibcode:
- 1992PASP..104..553O
- Keywords:
-
- Astronomical Photometry;
- Charge Coupled Devices;
- Star Clusters;
- Astronomical Catalogs;
- Calibrating;
- Sky Surveys (Astronomy);
- Stellar Magnitude;
- Astronomy;
- TECHNIQUES: PHOTOMETRIC;
- STARS: IMAGING