Scintillations of stars from observations with the Salyut 7 orbital station.
Abstract
Measurements of the rms brightness of stars have been carried out on board the 'Salyut-7' orbital station using the EFO-1 photometer system. The technical characteristics of the EFO-1 photometer are described, and some examples of the brightness recordings for the bright stars, Vega, Arctur, Deneb, are given. It is shown that brightness scintillations can occur anywhere and are probably caused by layered inhomogeneities in the atmospheric temperature profile at altitudes of 20-40 km. The rms temperature variation for a atmospheric layer 100 m thick was estimated in the range 0.2-0.4 K.
- Publication:
-
Akademiia Nauk SSSR Fizika Atmosfery i Okeana
- Pub Date:
- December 1985
- Bibcode:
- 1985FizAO..21.1235G
- Keywords:
-
- Astronomical Photometry;
- Salyut Space Station;
- Scintillation;
- Spaceborne Astronomy;
- Stellar Radiation;
- Atmospheric Stratification;
- Brightness Distribution;
- Light Curve;
- Root-Mean-Square Errors;
- Earth Atmosphere:Scintillation;
- Scintillation:Earth Atmosphere