Rotational properties and lightcurves of the asteroids 679 Pax and 796 Sarita

Details Rotational properties and lightcurves of the asteroids 679 Pax and 796 Sarita Rotational properties and lightcurves of the asteroids 679 Pax and 796 Sarita

Jun 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a....99..199s&link_type=abstract

Astronomy and Astrophysics, vol. 99, no. 1, June 1981, p. 199-201. Research supported by the Oesterreichischer Fonds zur Foerde

Astronomy and Astrophysics

Astronomy

4

Asteroids, Astronomical Photometry, Light Curve, Planetary Rotation, Color, Electrophotometry, Magnitude, Reference Stars, Asteroids, Astronomy, 679 Pax Asteroid, 796 Sarita Asteroid, Light Curve, Rotation, Physical Properties, Photoelectric Observations, Peroid, Data, Amplitude, Absolute Magnitude, Colors, Photometry

Scientific paper

The asteroids 679 Pax and 796 Sarita were observed photoelectrically during their opposition approach in t978, using the ESO 0.5 m telescope at the European Southern Observatory (Chile). No detailed photoelectric observations with respect to lightcurves or rotation rates of either object had been previously reported.
For 796 Sarita a period of rotation P = 7h/75 ± 0h.05 (0d.323 ± 0d.002D ) with a double wave lightcurve and a total amplitude Δm = 0.29 could be derived. Absolute mean magnitude is Vbar (1, 0) = 9.38 and V0(1, 0) = 9.26 with B - V = 0.70 and U - B =0.27, using a mean phase coefficient ℘ = 0.039 mag/deg.
For 679 Pax the rotation period is P = 7h625 ± 0h.005 (0d.3177 ± 0d.0002), also with a double lightcurve characteristic and Δm = 0.07. Absolute magnitude is Vbar(1, 0) = 9.18 and V0(1, 0) = 9.15, with B - V = 0.86 and U - B = 0.45.
For both asteroids frequent color measurements were made during all phases of the rotation but no variations exceeding the scatter of B - V = 0.01 and U - B = 0.02 could be detected.

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