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Widely recognised as being among the largest known stars, [26] radius decreased to ~500 R ☉ during the 2020 great dimming event. [76] R Horologii: 635 [61] L/T eff: A red giant star with one of the largest ranges in brightness known of stars in the night sky visible to the unaided eye. Despite its large radius, it is less massive than the Sun.
List of the most massive known stars. Legend. Wolf–Rayet star. Luminous blue variable. O-type star. B-type star. The following two lists show a few of the known stars, including the stars in open cluster, OB association and H II region.
R136a1. A near-infrared image of the R136 cluster. R136a1 is at the center with R136a2 close by, R136a3 below right, and R136b to the left. R136a1 (short for RMC 136a1) is one of the most massive and luminous stars known, at nearly 200 M☉ and nearly 4.7 million L☉, and is also one of the hottest, at around 46,000 K.
UY Scuti. UY Scuti (BD-12°5055) is a red supergiant star, located 5,900 light-years away in the constellation Scutum. It is also a pulsating variable star, with a maximum brightness of magnitude 8.29 and a minimum of magnitude 10.56, which is too dim for naked-eye visibility. It is considered to be one of the largest known stars, with a radius ...
VY Canis Majoris. 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.
WOH G64 (IRAS 04553-6825) is an unusual [3] red supergiant (RSG) star in the Large Magellanic Cloud (LMC) satellite galaxy in the southern constellation of Dorado. It is the largest known star with a well-defined radius. [3][13] It is also one of the most luminous and massive red supergiants, with a radius calculated to be around 1,540 times ...
BPM 37093 — a diamond star; Cygnus X-1 — X-ray source; EBLM J0555-57Ab — is one of the smallest stars ever discovered. GY Andromedae — chemically peculiar variable star; MACS J1149 Lensed Star 1 (or Icarus) — second most distant star, 9 billion light years away. [1] [2] P Cygni — suddenly brightened in the 17th century; WNC4 ...
Largest extrasolar apparent size star R Doradus: 1997 0.057" 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] [40] Smallest apparent size star Thousands of neutron stars located on the other side of the galaxy, likely impossible to resolve. [NB 6]