Minor planets and related objects. XXII - Phase functions for /6/ Hebe

Details Minor planets and related objects. XXII - Phase functions for /6/ Hebe Minor planets and related objects. XXII - Phase functions for /6/ Hebe

Mar 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977aj.....82..229g&link_type=abstract

Astronomical Journal, vol. 82, Mar. 1977, p. 229-237. NASA-supported research.

Astronomy and Astrophysics

Astronomy

17

Asteroids, Astronomical Photometry, Light Curve, Phase Shift, Sidereal Time, Data Acquisition, Luminous Intensity, Spheres, Surface Properties, Ubv Spectra

Scientific paper

Twenty-two light curves of Hebe are analyzed along with results of UBV photometry and photometric astrometry. A mean synodic period of approximately 7 hr 16 min 28.7 sec is adopted, and it is found that the amplitude of Hebe appears to vary directly with phase. The asteroid's magnitudes and colors are plotted against phase, its pole orientation is estimated, and the sidereal period is determined to be about 7 hr 16 min 28.01 sec from photometric astrometry. A color curve is plotted which shows that Hebe has a reddened region on its surface near the secondary minimum and that the asteroid is nearly spherical. Opposition effects are compared and found to be closely similar for Hebe, Ceres, Lydia, Massalia, and Vesta.

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