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