Photometry of small asteroids and cometary cores

Details Photometry of small asteroids and cometary cores Photometry of small asteroids and cometary cores

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986plas.rept...89g&link_type=abstract

In NASA, Washington Reports of Planetary Astronomy, 1985 p 89 (SEE N87-12407 03-89)

Astronomy and Astrophysics

Astronomy

Asteroids, Comet Nuclei, Light Curve, Stellar Spectrophotometry, Astrometry, Charge Coupled Devices, Planetary Rotation

Scientific paper

The first asteroid lightcurves have now been made with a new technique of CCD photometry. The apparent magnitude is fainter (V>17) than what can be done with the 1.52-m Catalina reflector with a photomultiplier photometer. With the CCD system, however, the lightcurve shows remarkably good repetition; finding the asteroid is, of course, no problem as the object is recognized later by its motion on the CCD. Asteroid 1985RV has a lightcurve amplitude of about 0.4 mag and its period of rotation P = 4.0 hours, on the assumption that the lightcurve has two maxima and two minima as is the case for nearly all other asteroids. The diameter is about 3 km. 1985RV is a first example of results that are being obtained on asteroids and comets with CCD in the Catalinas, Kitt Peak, and Cerro Tololo.

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