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The results of observations of double galaxies in the UBV system

Published online by Cambridge University Press:  14 August 2015

Aleksander Tomov

Extract

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In the Astronomical Observatory of the town of Belogradchik a one-channel electrophotometer in the UBV system with pulse counting has been installed at the 60-cm Cassegrain telescope. the photoamplifier used is of the type EMI 6256B (1). With this telescope the author has carried out observations of 80 double galaxies during the period 1974 to the middle of 1977, using the differential method of observation with 3 diaphragms (24″, 54″ and 135″) depending on its diameter.

Type
I. Galaxies in Small Groups
Information
Symposium - International Astronomical Union , Volume 79: The Large Scale Structure of the Universe , 1978 , pp. 102 - 103
Copyright
Copyright © Reidel 1978 

References

1. Tomov, A., 1973. Bulletin of the Astronomical Observatory of Varna, Bulgaria.Google Scholar
2. Holmberg, E., 1958. Medd. Lund Astr. Obs., Ser II, No. 136.Google Scholar
3. de Vaucouleurs, G., 1972. “Integrated magnitudes and colours for bright galaxies in the UBV system”.Google Scholar