Lightcurves and Rotational Periods of Nine Main Belt Asteroids

✍ Scribed by M. Di Martino; C. Blanco; D. Riccioli; G. De Sanctis

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 271 KB
• Volume: 107
• Category: Article
• ISSN: 0019-1035
• DOI: 10.1006/icar.1994.1022

✦ Synopsis

In this paper we present the results, obtained from September 1990 to October 1991, of a collaborative program between the Torino Astronomical Observatory and the Astronomy Institute of Catania University, which started 3 years ago, devoted to the determination of the rotational properties of the asteroids, to enlarging the available data set, and to obtaining bias-free photoelectric observations of small objects. We have determined reliable synodic rotational periods for the asteroids 122 Gerda ( (P=) (10^{\mathrm{h}} 332 \pm 0^{\mathrm{h}} .004) ), 137 Meliboea ( (P=15^{\mathrm{h}} 28 \pm 0^{\mathrm{h}} 02) ), 160 Una ( (P=5^{\text {h }} 61 \pm 0^{\text {h }} .01) ), 168 Sybilla ( (P=23^{\text {h }} 82 \pm 0^{h} 004) ), 377 Campania ( (P=8.507 \pm 0.003) ), 454 Mathesis ( (P=7.075 \pm 0^{\mathrm{h}} 025) ), 550 Senta ( (P=20^{\mathrm{h}} 555 \pm 0^{\mathrm{h}} 01) ), and 937 Bethgea ( (P=8.356 \pm) (0^{\text {hh }}).006). For 500 Selinur we obtained an estimate of about (9^{\text {h }}) of the possible spin period. 1994 Academic Press, Inc.