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The overall luminosity of the star decreases, its outer envelope contracts again, and the star moves from the red-giant branch to the horizontal branch. [6] [8], chapter 6. When the core helium is exhausted, a star with up to about 8 M ☉ has a carbon–oxygen core that becomes degenerate and starts helium burning in a shell. As with the ...
During the 2002 Red Nova, the star's radius may have increased up to 3,190 R ☉. [82] Pistol Star (V4647 Sagittarii) 420 [83] L/T eff: One of the most luminous stars known. La Superba (Y Canum Venaticorum) 344 [84] L/T eff: Mira (ο Ceti A) 332–402 [85] AD Prototype of the Mira variables. Orbit of Mars: 322 – 323.1 [10] [b] Reported for ...
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The phase where these stars have both hydrogen and helium burning shells is referred to as the asymptotic giant branch (AGB), as stars gradually become more and more luminous class M stars. Stars of 8-10 M ☉ may fuse sufficient carbon on the AGB to produce an oxygen-neon core and an electron-capture supernova, but astrophysicists categorise ...
Rifampicin, also known as rifampin, is an ansamycin antibiotic used to treat several types of bacterial infections, including tuberculosis (TB), Mycobacterium avium complex, leprosy, and Legionnaires' disease. [3]
This is a list of the nearest giant stars (luminosity class III or II) to the Earth, located at a distance of up to 100 light-years (31 pc). List. Name
Alpha Lupi (α Lupi, α Lup), also named Uridim, [11] is a blue giant star, and the brightest star in the southern constellation of Lupus.According to the Bortle Dark-Sky Scale, its apparent visual magnitude of 2.3 [2] makes it readily visible to the naked eye even from highly light-polluted locales.
Starting in 2003, ' The Most Beloved Vietnam Television Dramas' Voting Contest (Vietnamese: Cuộc thi bình chọn phim truyền hình Việt Nam được yêu thích nhất) is held annually or biennially by VTV Television Magazine to honor Vietnamese television dramas broadcast during the year(s) on two channels VTV1-VTV3.