Abstract
The Tycho Catalogue1 contains astrometric data and (B, V) photometry for more than one million stars. The double stars with separations wider than about 3 arcsec appear as two separate entries as if they were two single stars. Between 1.5 and 3 arcsec, the two components are possibly also separate entries, but the photometric data is somewhat less accurate. Double stars with separations as close as 0.4 arcsec were also detected in the Tycho observations, and they are flagged in the Catalogue.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
