Hostname: page-component-cd9895bd7-fscjk Total loading time: 0 Render date: 2024-12-26T04:31:43.557Z Has data issue: false hasContentIssue false

A Photometrical Investigation on the RC System of the 2m Ritchey-Chretien Coude Telescope of the Rozhen Observatory

Published online by Cambridge University Press:  26 July 2016

R.G. Getov*
Affiliation:
Rozhen National Astronomical Observatory, P.O. Box 136, BG-4700 Smolyan, Bulgaria

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Surface photometry techniques of data processing are applied for the qualitative analysis on the reflectivity of the two mirror system in the prime focus of the 2m Ritchey-Chrétien Coudé telescope of the Rozhen Observatory. There are considerable variations in the reflectivity, up to ±30%. An estimation on the upper limit of the average reflectivity, about 68% ±1%, of the two-mirror RC system is made. A loss of about 0.5 magnitudes in the limiting magnitude due to the low reflectivity and to the decrease in the reflecting surface is found.

Type
Part Six: Calibration: Astrometric and Photometric
Copyright
Copyright © Kluwer 1994 

References

Ehrlich, U., Ehrig, K. and Solger, N., 1988. JRdSh 33, No 2, 84.Google Scholar
Georgiev, Tz., 1987. Sofia, PhD thesis.Google Scholar
Walker, G., 1987. Astronomical Observation, Cambridge University Press.Google Scholar
Ziener, R., 1988. Private communication.Google Scholar