Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977ap%26ss..48..225j&link_type=abstract
Astrophysics and Space Science, vol. 48, no. 1, May 1977, p. 225-230.
Astronomy and Astrophysics
Astrophysics
7
Electrophotometry, Open Clusters, Stellar Magnitude, Stellar Spectrophotometry, Ubv Spectra, Cassiopeia Constellation, Hertzsprung-Russell Diagram, Light Curve, Main Sequence Stars
Scientific paper
The H-R diagram of the open cluster Tr-1 based on Oja (1966) membership
and UBV photoelectric photometry is presented. The color excess E(B-V)
is 0.52 magnitude. The distance modulus to the cluster and its age are,
respectively, estimated to be 11.6 magnitudes and 26 million yr.
Joshi Umesh C.
Sagar Ram
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