UBV photometry of asteroid 433 Eros

Details UBV photometry of asteroid 433 Eros UBV photometry of asteroid 433 Eros

May 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976icar...28...53m&link_type=abstract

Icarus, vol. 28, May 1976, p. 53-67.

Astronomy and Astrophysics

Astronomy

9

Asteroids, Astronomical Photometry, Light Curve, Planetary Rotation, Ubv Spectra, Axes Of Rotation, Ephemeris Time, Luminous Intensity, Planet Ephemerides, Planetary Structure, Tables (Data)

Scientific paper

UBV observations of asteroid 433 Eros were conducted on 17 nights during the winter of 1974/75. The peak-to-peak amplitude of the lightcurve varied from about 0.3 mag to nearly 1.4 mag. The absolute V mag at maximum light, extrapolated to zero phase, is 10.85. Phase coefficients of 0.0233 mag/degree, 0.0009 mag/degree, and 0.0004 mag/degree were derived for V, B-V and U-B, respectively. The zero-phase color of Eros (B-V = 0.88, U-B = 0.50) is representative of an S (silicaceous) compositional type asteroid. The color does not vary with rotation. The photometric behavior of Eros can be modeled by a cylinder with rounded ends having an axial ratio of about 2.3:1. The asteroid is rotating about a short axis with the north pole at 15 deg ecliptic longitude and 9 deg ecliptic latitude.

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