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Cygnus OB2 / Stellar evolution / Extinction / B-V colour / Hertzsprung–Russell diagram / Cygnus / Stellar classification / Apparent magnitude / Cygnus OB2-12 / Astronomy / Observational astronomy / Space
Date: 2013-01-24 03:55:19
Cygnus OB2
Stellar evolution
Extinction
B-V colour
Hertzsprung–Russell diagram
Cygnus
Stellar classification
Apparent magnitude
Cygnus OB2-12
Astronomy
Observational astronomy
Space

Физически факултет, том 104

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