The large C-type asteroid 423 Diotima: rotation period, lightcurve and implications for a possible satellite

Photoelectric observations of the C-type asteroid 423 Diotima have established a rotation period of 8 h in 1981, with a symmetrical light curve whose amplitude is only 0.06 mag. The observations made in 1982 at a different aspect are compatible with the 1981 result, but show an additional, 0.1-mag f...

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Bibliographic Details
Published in:Astronomy and astrophysics (Berlin) 1983-11, Vol.127 (2), p.301-303
Main Author: SCHOBER, H. J
Format: Article
Language:English
Subjects:
Asteroids (minor planets)
Astronomy
Earth, ocean, space
Exact sciences and technology
Planets, their satellites and rings. Asteroids
Solar system
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Summary:Photoelectric observations of the C-type asteroid 423 Diotima have established a rotation period of 8 h in 1981, with a symmetrical light curve whose amplitude is only 0.06 mag. The observations made in 1982 at a different aspect are compatible with the 1981 result, but show an additional, 0.1-mag feature in the light curve, suggesting the existence of a satellite for this large (more than 200 km diameter) asteroid.
ISSN:0004-6361
1432-0746