VY Canis Majoris

Stellar classification



  • X 1576
  • Y -150
  • Z -923
→ Sol: 1,833

Object type

  • Star
  • Double or multiple star
  • Infra-Red source
  • Maser
  • Pulsating variable Star
  • Red supergiant
  • sub-millimetric source
  • Variable Star
  • Star suspected of Variability
simbad:V* VY CMa


VY Canis Majoris (VY CMa) is a red hypergiant star located in the constellation Canis Major. It is one of the largest stars and also one of the most luminous of its type. It has a radius of approximately 1,420 solar radii (990,000,000 km; 6.6 au), and is 17 ± 8 times as massive as the Sun. Located about 1.2 kiloparsecs (3,900 light-years) from Earth, it is too faint to be seen with the naked eye.

VY Canis Majoris is a single star categorized as a semiregular variable with an estimated period of 2,000 days. It has an average density of 5 to 10 mg/m3. If placed at the center of the Solar System, VY Canis Majoris's surface would extend beyond the orbit of Jupiter, although there is still considerable variation in estimates of the radius.

This article uses material from the Wikipedia article "VY Canis Majoris", which is released under the Creative Commons Attribution-Share-Alike License 3.0.