Deneb, the bright star that marks the tail of the swan, is far bigger, heavier, and brighter than the Sun. It stands a third of the way up the northeastern sky at nightfall, at the left end of the “cross” that outlines the swan’s body and wings.
Deneb, the bright star that marks the tail of the swan, is far bigger, heavier, and brighter than the Sun. It stands a third of the way up the northeastern sky at nightfall, at the left end of the “cross” that outlines the swan’s body and wings.