Photoelectric lightcurves of the minor planets 29 Amphitrite, 121 Hermione and 185 Eunike.
Abstract
Asteroids 29 Amphitrite, 121 Hermione and 185 Eunike were observed with a photoelectric photometer attached to the 50 Cm telescope at the European Southern Observatory. The lightcurve of 29 Amphitrite presents a triple maximum and minimum as remarkable features and a total amplitude of 0.11 mag. The synodic rotation period derived for this asteroid is found to be + 4S The ininor planet 121 Hermione only displayed very smooth light variations (=0.03 mag) during 16 hours of observation. No rotation period could be deduced from our measurements. Finally, asteroid 185 Eunike appeared with light variations greater than 0.12 mag and with a very probable synodic rotation period of 10h50 + 2 . Key words: asteroid - rotation period - lightcurve -29 Amphitrite, 121 Hermione and 185 Eunike
- Publication:
-
Astronomy and Astrophysics Supplement Series
- Pub Date:
- April 1978
- Bibcode:
- 1978A&AS...32..127D
- Keywords:
-
- Amphitrite Asteroid;
- Asteroids;
- Astronomical Photometry;
- Light Curve;
- Amplitudes;
- Electrophotometers;
- Planetary Rotation;
- Lunar and Planetary Exploration;
- Light Curves:Minor Planets;
- Minor Planets:Rotation