Project Spectrostratoscope: Balloon-borne solar research
Abstract
A historical review of the project development (1961 to 1975) is followed by an outline description of the instrument. More details on the technical problems related to photometry and the quantitative analysis of the observations are then given. Focusing, instrument profile, instrumental polarization, pointing, and guiding stability are discussed. After a brief description of the balloon flight of 17 May 1975, The functioning of critical components and the thermal behavior of the instrument are analyzed. The scientific program for the investigation of photospheric granulation by means of time series integrated light pictures and spectra with high angular and spectral resolutin is described; first results concerning life times temperature fluctuations, and velocities of granules are reported.
- Publication:
-
Final Report Fraunhofer Inst
- Pub Date:
- August 1978
- Bibcode:
- 1978fifg.rept.....M
- Keywords:
-
- Balloon-Borne Instruments;
- Spectrophotometry;
- Spectroscopic Telescopes;
- High Altitude Balloons;
- Quantitative Analysis;
- Self Focusing;
- Solar Granulation;
- Spectrum Analysis;
- Steering;
- Solar Physics