UBV photometry of asteroid 433 Eros
Abstract
UBV observations of asteroid 433 Eros were conducted on 17 nights during the winter of 1974/75. The peak-to-peak amplitude of the light curve varied from about 0.3 mag to nearly 1.4 mag. The absolute V magnitude, extrapolated to zero phase, is 10.85. Phase coefficients of 0.0245 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.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- August 1975
- Bibcode:
- 1975STIN...7529963M
- Keywords:
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- Asteroids;
- Photometers;
- Ubv Spectra;
- Arctic Regions;
- Color;
- Cylindrical Bodies;
- Experimental Reflector Orbital Shot Proj;
- Astronomy