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bright star - this is Deneb. Tb the south of both stars is the final member of the trio - Altair.
Vega, or Alpha Lyrae is a very prominent star in the small constellation of Lyra, the Harp. Vega is 25 fight years away from Earth, and the name Vega comes from the Arabic word meaning Tailing Eagle’. It is a main sequence star three times larger and 50 times more luminous than our Sun.
Deneb, or Alpha Cygni, is a completely different type of star to Vega. It’s a super giant star, which is another way of saying that it is enormous. It has a diameter over 200 times greater than our Sun, and the same luminosity as 85,000 suns. It
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