VY Canis Majoris

VY Canis Majoris is an extremely large red hypergiant, one of the largest stars known, and near the Hayashi limit. It is also a variable star, with periods of dimming by creating dust clouds blocking some light.

• Canis Major - constellation.
• 07h22m58.32877s - right ascension.
• -25deg46m03.2355s - declination.
• +7.95 - apparent magnitude.
• 3800 ly - distance.
• M3-M4.5 - spectral type.
• 17 - mass(solar).
• 270000 - luminosity(solar).
• 1420 - radius(solar, i.e., roughly 6.6 astronomical unit).
• +2.057 - B-V color index.