A double beam photoelectric photometer for astronomical applications

Details A double beam photoelectric photometer for astronomical applications A double beam photoelectric photometer for astronomical applications

Feb 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975a%26a....38..359g&link_type=abstract

Astronomy and Astrophysics, vol. 38, no. 3, Feb. 1975, p. 359-362. Deutsche Forschungsgemeinschaft

Physics

Optics

16

Electrophotometers, Light Curve, Stellar Luminosity, Variable Stars, Astrometry, Atmospheric Attenuation, Atmospheric Optics, Cassegrain Optics

Scientific paper

The double-beam photoelectric photometer described allows two stars within the field of a Cassegrain telescope to be monitored. The measured brightness differences of the two stars are largely independent of atmospheric transparency changes and thin cirrus clouds. The photometer is especially suited for observations of the light curves of rapid variables. The achieved time resolution of 5-10-sec with a 1% photometric accuracy is typical for 12-th magnitude stars at a 1-m telescope.

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