'Deneb, a star of the first magnitude, marks the tail of the swan in this constellation'
Cygnus
ASTRONOMY: Deneb, a star of the first magnitude, marks the tail of the swan in this constellation
Deneb, a star of the first magnitude, marks the tail of the swan in this constellation
Deneb, a star of the first magnitude, marks the tail of the swan in this constellation
ASTRONOMY
Cygnus
ASTRONOMY