Comparison of stellar-image diameters on wide angle astrographs

Details Comparison of stellar-image diameters on wide angle astrographs Comparison of stellar-image diameters on wide angle astrographs

Jun 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985kfnt....1...64k&link_type=abstract

Kinematika i Fizika Nebesnykh Tel (ISSN 0233-7665), vol. 1, May-June 1985, p. 64-70. In Russian.

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1

Astrography, Astrometry, Diameters, Star Distribution, Stellar Magnitude, Calibrating, Foci, Reference Stars

Scientific paper

The relation of stellar image diameters to stellar magnitude was studied in photographic plates obtained using eight different wide angle astrographs at observation sites across the USSR. It is found that the diameter ratios for instruments with focal lengths of 2-3 m were within the range 1.26-1.38 and were smaller than the focal length ratios. It is suggested that the observed increase in stellar image diameters is due not only to stellar image tremor, but also to other factors which are not related to angular fluctuations.

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