Yuri Gagarin - The Columbus of Space
Yuri Ilich Galperin
YY CMi: contact or near contact system?
YY Draconis and V709 Cassiopeiae: two intermediate polars with weak magnetic fields
YY Draconis and V709 Cassiopeiae: two intermediate polars with weak magnetic fields
YY Geminorum. I - Photometry and absolute dimensions
YY Geminorum: A Very Late Type Close Binary with Possible Magnetic Stellar Wind
YY Her Secondary Eclipses in the System Revealed
YY Her photometric history over 1890-1996 (Munari+ 1997)
YY Herculis
YY Herculis
YY Herculis
YY Herculis
YY Herculis
YY Herculis
YY Herculis
YY Herculis
Yy-Canis - an Evolved Contact Binary System
Yy-Orionis Line Profiles in the Spectrum of Rw-Aurigae
YZ Andromedæ, Elements of, variation of