The minor planet 654 Zelinda: rotation period and light curve.
Abstract
Summary. The minor planet 654 Zelinda was observed during the 1973 opposition with a photoelectric photometer attached to the 60 cm telescope of the Observatoire de Haute Provence for 31 h in total. The composite light curve appears with a double maximum and a double minimum. The synodic period of rotation comes out to 3 1h54m + 3 , the maximum amplitude is about 0.3 mag. Observations were carried out in instrumental V'- system, measurements obtained in B' do supplement the conclusions from the V'-data concerning the rotation of 654 Zelinda. The range of the phase angle cc covered by the observations is 90 to t5 As the rotation period derived for 654 Zelinda is the longest one measured until now for minor planets, the frequency of rotation periods for 57 asteroids with known periods is given. Key words: asteroid light curve - minor planet 654 Zelinda
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- November 1975
- Bibcode:
- 1975A&A....44...85S
- Keywords:
-
- Asteroids;
- Light Curve;
- Planetary Rotation;
- Data Reduction;
- Electrophotometers;
- Radiant Flux Density;
- Size Determination;
- Lunar and Planetary Exploration