UBV photometry of the asteroid 44 Nysa

Details UBV photometry of the asteroid 44 Nysa UBV photometry of the asteroid 44 Nysa

Sep 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003a%26a...408..379t&link_type=abstract

Astronomy and Astrophysics, v.408, p.379-385 (2003)

Astronomy and Astrophysics

Astrophysics

2

Minor Planets, Asteroids, Star System: General, Techniques: Photometric

Scientific paper

The color curves of Nysa connected to the rotation and phase angle were obtained from observations for the first time in 1982. The color curves showed the U-B change with rotation. The value of this change was 0.2 mag. Color variation indicates that the extended color spot is on the surface of 44 Nysa. The U-B color index decreases with the increase of the phase angle (the phase coefficient is 0.011 mag/deg). This decrease is stronger for the surface with color spots. Phase functions of the brightness for opposite sides of Nysa are different. The value of the opposition effect of 44 Nysa decreases as reflectance decreases.

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