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Astron. Astrophys. 343, L75-L77 (1999)


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Letter to the Editor

Short period oscillations in the light curve of the asteroid 1689 Floris-Jan

W. Pych

Warsaw University Observatory, Al. Ujazdowskie 4, PL-00-478 Warszawa, Poland

Received 23 December 1998 / Accepted 3 February 1999

Abstract

We present CCD photometry of the long period asteroid 1689 Floris-Jan. On the light curve from nights 1997.02.10/11 and 1997.02.11/12 we detected coherent sine-like oscillations with a period P=4.98 [FORMULA] 0.01 minutes and full range amplitude of about 0.11 mag. The observations from night 1997.03.07/08 show no light variations with this period.

Key words: minor planets, asteroids


© European Southern Observatory (ESO) 1999

Online publication: March 1, 1999

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