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The cloud around the star P Cygni
Click on image for star map
NASA, Hubble Space Telescope

P Cygni - One of the Hottest Supergiants in the Galaxy

What's in a name
Claim to Fame: One of the brightest distant stars in the galaxy. Remarkable wind blowing off a portion of the outer atmosphere. Losing mass at the rate of 1 solar mass every 10,000 years. Variable star with apparent visual magnitude ranging from 3 to 6 (the eye can see to apparent magnitudes of 5 or 6 on a moonless night).
Type of Star:Rare Blue Supergiant (B1 Iae Spectral Class)
How Far Away: About 6300 light years
How Big: Roughly 76 times the size of the Sun
How Bright:On average, about 750,000 times as luminous as the Sun
Where to View: Located in the constellation Cygnus, the Swan (Star Map).
When to View: Cygnus is best viewed June - November from the northern hemisphere

Last modified January 18, 2006 by Travis Metcalfe.

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