On the atmospheric transparency in Uzhgorod.
Abstract
The atmospheric extinction coefficient at Uzhgorod was determined by photographing standard fields with known UBV stellar magnitudes by the method of high and low stars. Over a period of one hour the extinction does not vary much, but over two hours it may vary by 0.1-0.2 mag. The range of extinction variations over a 29-night observation period was large - from 0.22 to 0.94 mag. The mean value was 0.45 mag. The smallest seasonal changes occurred in January, the largest in August.
- Publication:
-
Astrometriia i Astrofizika
- Pub Date:
- 1977
- Bibcode:
- 1977AAfz...33...87M
- Keywords:
-
- Astronomical Photometry;
- Atmospheric Optics;
- Extinction;
- Night Sky;
- Transparence;
- Annual Variations;
- Astronomical Photography;
- Statistical Analysis;
- Stellar Magnitude;
- Ubv Spectra;
- Astronomy