Photometric Variations of the Minor Planets 55 Pandora and 173 Ino during the Opposition in 1977: Light Curves and Rotation Periods
Abstract
The asteroids 55 Pandora and 173 Ino were observed during their opposition approach in 1977, using the 50 cm ESO and 61 cm - Bochum ESO telescopes at the European Southern Observatory. Previously no detailed photoelectric observations of either object had existed. For 55 Pandora a period of rotation of P = + = + was found. The lightcurve shows double extrema with a total maximum light amplitude of 0".24. For 173 Ino the most probable period is p=5h93+0h()1 = +0do()o4 The existence of the secondary extrema is not as clear as it is for 55 Pandora. The maximum light amplitude is in the range of 0"04 only. Key words: Asteroids - rotation period - light curve - photoelectric photometry - 55 Pandora, 173 Ino
- Publication:
-
Astronomy and Astrophysics Supplement Series
- Pub Date:
- December 1978
- Bibcode:
- 1978A&AS...34..377S
- Keywords:
-
- PHOTOMETRY;
- ASTEROIDS;
- OPPOSITION;
- LIGHT CURVE;
- ROTATION;
- PERIOD;
- PANDORA;
- INO;
- OBSERVATIONS;
- EARTH-BASED OBSERVATIONS;
- Asteroids