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A visual band light curve for VY Canis Majoris, from AAVSO data [42] VY Canis Majoris is a variable star that varies from an apparent visual magnitude of 9.6 at minimum brightness to a magnitude of 6.5 at maximum with an estimated pulsational period of 956 days.
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.
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 ...
EZ Canis Majoris is a Wolf–Rayet star of spectral type WN4 that varies between magnitudes 6.71 and 6.95 over a period of 3.766 days; the cause of its variability is unknown but thought to be related to its stellar wind and rotation. [63] VY Canis Majoris is a remote red hypergiant located approximately 3,800 light-years away from Earth.
Very Large Telescope image of the surroundings of the red hypergiant VY Canis Majoris. An OH/IR star is an asymptotic giant branch (AGB) or a red supergiant or hypergiant (RSG or RHG) star that shows strong OH maser emission and is unusually bright at near-infrared wavelengths.
The event is compared to the great dimming of Betelgeuse that happened in late 2019 [8] [13] [16] [28] [29] and the dimming events seen in the historical light curve of VY Canis Majoris. [ 8 ] [ 13 ] Spectra taken by an amateur astronomer show the appearance of several new emission lines during the dimming, most notably H-α and the K I lines ...
VY Canis Majoris; W. W Canis Majoris; WASP-64; WISE 0713−2917; WR 7; X. Xi Canis Majoris; Xi1 Canis Majoris; Xi2 Canis Majoris; Z. Z Canis Majoris; Zeta Canis Majoris
Size comparison between the diameter of the Sun and VY Canis Majoris, a hypergiant which is among the largest known stars (possibly the largest in the Milky Way). K to M type spectra, the largest known stars by radius.