On the instrumental and atmospheric stray-light for solar observations.
Abstract
From aureole measurements made with a 40 cm-Vacuum-Telescope at Izaña (Tenerife) in the wavelength region 417 nm < λ < 785 nm and from a comparison with other aureole measurements we conclude the following: (a) Within one solar radius from the limb, the aureole is mostly of instrumental origin, (b) Beyond that distance, the contribution of atmospheric stray-light becomes noticeable, (c) The atmospheric contribution to the aureole intensity is, under good conditions at mountain stations, a very slowly decreasing function, and amounts to some 10−5 of the solar disk intensity.
- Publication:
-
Solar Physics
- Pub Date:
- August 1983
- DOI:
- 10.1007/BF00151169
- Bibcode:
- 1983SoPh...87..187M
- Keywords:
-
- Astronomical Photometry;
- Atmospheric Correction;
- Instrument Compensation;
- Solar Instruments;
- Coronagraphs;
- Electrophotometers;
- Astronomy;
- Good Condition;
- Wavelength Region;
- Solar Disk;
- Solar Radius;
- Atmospheric Component;
- Methods of Reduction