Asteroids as reference stars for high resolution astronomy

Details Asteroids as reference stars for high resolution astronomy Asteroids as reference stars for high resolution astronomy

Sep 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...289l..47r&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 289, no. 3, p. L47-L50

Physics

Optics

5

Adaptive Optics, Asteroids, Astronomy, High Resolution, Reference Stars, Visual Observation, Angular Correlation, Faint Objects, Orbits, Spatial Distribution, Stellar Magnitude

Scientific paper

Adaptive optics and speckle imaging can resolve faint objects with the aid of a reference source to measure atmospheric turbulence. Natural bright stars and artificial laser guide stars were proposed for this method. However, the former are not sufficient in number, and the latter are very complex and expensive. Asteroids and other solar system objects extend the number of reference sources and their coverage of the sky. Using spatial correction with adaptive optics, asteroids allow resolution of compact sources up to mv = 25 and mK = 21. In the same manner, stars can serve as references for measuring solar system objects in near-occultation.

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