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VY Canis Majoris (abbreviated to VY CMa) is an extreme oxygen-rich red hypergiant or red supergiant (O-rich RHG or RSG) and pulsating variable star 1.2 kiloparsecs (3,900 light-years) from the Solar System in the slightly southern constellation of Canis Major.
VY Canis Majoris: 1,420 ± 120 [11] [12] [13] AD An extreme oxygen-rich red hypergiant that has experienced two dimming periods in the 20th century where the star became dimmer by up to 2.5 magnitudes. [14] Potentially the largest known star in the Milky Way. [12] There is a possilbility that this size might be a bit overestimated (on the order ...
VY Canis Majoris (VY CMa) is a red hypergiant star located in the constellation Canis Major.One of the largest stars and also one of the most luminous of its type, it has a radius of approximately 1,420 ± 120 solar radii (equal to a diameter of 13.2 astronomical units, or about 1,976,640,000 km), and is situated about 1.2 kiloparsecs (3,900 light-years) from Earth.
Date: 22 August 2007: Source: Self-made in Inkscape. Author: Oona Räisänen ()Other versions: Derivative works of this file: Sun and VY Canis Majoris-bg.svg
"If our sun were replaced with such a star, its surface could extend to the orbit of Saturn." That pretty much sums it up. Fascinating! Especially after an appreciation of just how massive the sun is, and the staggering volume within saturn's orbit. Articles this image appears in VY Canis Majoris Creator User:WindAzure (png) User:Mysid (svg)
This replaced Betelgeuse as the largest, Betelgeuse having been the first star other than the Sun to have its apparent size measured. [NB 6] [NB 1] [41] Smallest apparent size star Thousands of neutron stars located on the other side of the galaxy, likely impossible to resolve. [NB 6] Largest star VY Canis Majoris: 2024 r=1,420 R ☉
2 Tm – 13.2 au – estimated diameter of VY Canis Majoris, a red hypergiant that is among the largest-known stars [192] [193] 2.142 Tm – 14.3 au – estimated diameter of WOH G64, prior to its transformation into a yellow hypergiant. 2.9 Tm – 19.4 au – average distance between Uranus and the Sun; 4.4 Tm – 29.4 au – perihelion ...
NML Cygni is an extremely large and luminous cool supergiant with parameters similar to that of another notable but more extreme cool hypergiant star, VY Canis Majoris, and is also known as a heavily mass-losing OH/IR supergiant. It is also a semiregular variable star with a period of either 1,280 or 940 days.