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VX Sagittarii is an asymptotic giant branch star located more than 1.5 kiloparsec away from the Sun in the constellation of Sagittarius. It is a pulsating variable ...
VX Sagittarii: 1,360 +250 −230 [20] – 1,480 +180 −160 [18] AD The most luminous known asymptotic giant branch star. [20] Widely recognised as being among the largest known stars. [21] NML Cygni < 1,350 +195 −229 [c] AD Surrounding dusty region is very complex making the radius hard to determine. [22] Stephenson 2 DFK 2 1,300 ± 300 [12 ...
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X Sagittarii is a variable star and candidate binary star system in the southern constellation of Sagittarius, near the western constellation boundary with Ophiuchus. It has a yellow-white hue and is visible to the naked eye with an apparent visual magnitude that fluctuates around 4.54. [ 2 ]
A star is a massive luminous spheroid astronomical object made of plasma that is held together by its own gravity.Stars exhibit great diversity in their properties (such as mass, volume, velocity, stage in stellar evolution, and distance from Earth) and some of the outliers are so disproportionate in comparison with the general population that they are considered extreme.
Delta Sagittarii (δ Sgr) ("Kaus Meridionalis"), is a K2 spectra star with magnitude 2.71 about 350 light years from Earth. [8] Eta Sagittarii (η Sgr) is a double star with component magnitudes of 3.18 and 10, while Pi Sagittarii (π Sgr) ("Albaldah") [9] is actually a triple system whose components have magnitudes 3.7, 3.8, and 6.0. [8]
This very recent reference [1] states VX Sgr is most likely to be an extreme super-AGB star or even a TZO star and the most luminous AGB star at Mbol = –8.6 or 217,000 +160,000 −92,000. Can we mention it in the article? P.S. should we remove the 853 R ☉ value in the starbox. It's pretty old comparing to the 1,120-1,550 estimate from Xu et ...
HD 168607 (V4029 Sagittarii) is a blue hypergiant and luminous blue variable (LBV) star located in the constellation of Sagittarius, easy to see with amateur telescopes. It forms a pair with HD 168625 , also a blue hypergiant and possible luminous blue variable, that can be seen at the south-east of M17, the Omega Nebula .