Photometry of the M-type asteroid 21 Lutetia

Details Photometry of the M-type asteroid 21 Lutetia Photometry of the M-type asteroid 21 Lutetia

Dec 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983pazh....9..691l&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 9, Nov.-Dec. 1983, p. 691-694) Soviet Astronomy Letters (ISSN 0360-0327), vol. 9, Nov.-

Astronomy and Astrophysics

Astronomy

4

Asteroids, Astronomical Photometry, Celestial Mechanics, Light Curve, Rotation

Scientific paper

Light curves, phase variations of magnitude and color and an improved rotation period for the M-type asteroid 21 Lutetia are presented. Two observing periods were performed, in 1981 and 1983, using 70 cm telescopes equipped with photometers. The rotation period was about 8 hr 10 m. Two sides of the asteroid differed in surface brightness by 0.07 mag due to surface albedo. The magnetic phase coefficient was within 0.001 of 0.036 mag/deg, typical for metallic surface asteroids. The visual magnitude averaged from 8.05-8.48.

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