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Физически факултет, том 104
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Document Date: 2013-01-24 03:55:19
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City
Sofia /
Edinburgh /
/
Company
Hanson /
Lawrence L. C. /
/
Country
Bulgaria /
/
/
Facility
St. Kliment Ohridski University of Sofia /
/
OperatingSystem
Cygnus /
/
Organization
University of Sofia /
Cygnus OB2 association /
CYG OB2 ASSOCIATION /
PETKO NEDIALKOV Department of Astronomy Faculty of Physics /
Cyg OB2 /
Cygnus OB2 /
Department of Astronomy /
OB /
/
Person
EVGENI OVCHAROV /
/
/
Product
2MASS JHK /
/
Technology
spectroscopy /
Av /
/
SocialTag
Cygnus OB2
Stellar evolution
Extinction
B-V colour
Hertzsprung–Russell diagram
Cygnus
Stellar classification
Apparent magnitude
Cygnus OB2-12
Astronomy