Photovisual observation of twilight
| Autor: | O. Ugolnikov |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
Physics
Brightness Twilight media_common.quotation_subject Astrophysics::Instrumentation and Methods for Astrophysics Position of the Sun Astronomy Astronomy and Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Stars Sky Limiting magnitude Sky brightness Astrophysics::Solar and Stellar Astrophysics Instrumentation Astrophysics::Galaxy Astrophysics media_common |
| Zdroj: | Astronomical & Astrophysical Transactions. 11:107-110 |
| ISSN: | 1476-3540 1055-6796 |
| DOI: | 10.1080/10556799608205459 |
| Popis: | In the first approximation, the brightness of twilight sky is a function of the coordinates of a sky point and the position of the Sun at a particular instant. The objective of this work is to determine how does the sky brightness depend on these parameters from the photographic observations in V system. Besides that, the relation of the sky brightness upon limiting magnitude of visible stars is investigated. The knowledge of these dependencies helps a lot in preparing observing programmes to be done at twilight time. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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