Physical studies of asteroids

J. Piironen; P. Magnusson; C.-I. Lagerkvist; I. P. Williams; M. E. Buontempo; L. V. Morrison

doi:10.1051/aas:1997325

All issues

Volume 121 / No 3 (March 1997)

Astron. Astrophys. Suppl. Ser., 121 3 (1997) 489-497

Abstract

Free Access

Issue		Astron. Astrophys. Suppl. Ser. Volume 121, Number 3, March 1997


Page(s)		489 - 497
DOI		https://doi.org/10.1051/aas:1997325
Published online		15 March 1997

Astron. Astrophys. Suppl. Ser. 121, 489-497 (1997)

XXXI. Asteroid photometric observations with the Carlsberg Automatic Meridian Circle

J. Piironen¹^,2, P. Magnusson¹, C.-I. Lagerkvist¹^,3, I. P. Williams⁴, M. E. Buontempo⁵ and L. V. Morrison⁵

¹ Astronomiska observatoriet, Box 515, S–75120 Uppsala, Sweden
² Astronomical Observatory, Box 14, FIN–00014 Helsinki, Finland
³ Institute for Planetary Exploration, DLR, Berlin, Germany
⁴ Queen Mary & Westfield College, Mile End Road, London E1 4NS, UK
⁵ Royal Greenwich Observatory, Madingley Rd, Cambridge, CB3 0EZ, UK

Send offprint request to: J. Piironen

Received: 1 May 1996
Accepted: 10 June 1996

Abstract

Photometric observations of 74 asteroids obtained with the Carlsberg Automatic Meridian Circle between January 1990 and December 1993 are presented. The data from individual asteroid apparitions have been fitted by phase curves based on the standard HG magnitude system. Statistics on mean G-values for different types of asteroids are presented. A few new determinations of asteroid rotation periods are presented. In addition, we analyse magnitude-aspect relations, and derive ellipsoidal shape models for some asteroids.

Key words: minor planets / photometry