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Least stars in a star system There are many single star systems. Most stars in a star system: QZ Carinae. Nonuple star system [72] System contains at least nine stars. [72] [NB 12] [72] Stars in the closest orbit around one another There are many stars that are in contact binary systems (where two or more stars are in physical contact with each ...
It is the most massive star that has a Bayer designation. It was only discovered to be (at least) two stars in the past few decades. Both the obscuring clouds and the great distances also make it difficult to judge whether the star is just a single supermassive object or, instead, a multiple star system. A number of the "stars" listed below may ...
A yellow hypergiant, one of the rarest types of stars. V838 Monocerotis: 464 [82] L/T eff: During the 2002 Red Nova, the star's radius may have increased up to 3,190 R ☉. [83] Pistol Star (V4647 Sagittarii) 420 [84] L/T eff: One of the most luminous stars known. La Superba (Y Canum Venaticorum) 344 [85] L/T eff: Mira (ο Ceti A) 332–402 [86] AD
The stars with the most confirmed planets are the Sun (the Solar System's star) and Kepler-90, with 8 confirmed planets each, followed by TRAPPIST-1 with 7 planets. The 1007 multiplanetary systems are listed below according to the star's distance from Earth. Proxima Centauri, the closest star to the Solar System, has three planets (b, c and d).
It is estimated that there are between 200 billion [7] (2 × 1011) to 2 trillion [8] galaxies in the observable universe. Most galaxies are 1,000 to 100,000 parsecs in diameter (approximately 3,000 to 300,000 light years) and are separated by distances in the order of millions of parsecs (or megaparsecs).
A multiple star system consists of two or more stars that appear from Earth to be close to one another in the sky. [dubious – discuss] This may result from the stars actually being physically close and gravitationally bound to each other, in which case it is a physical multiple star, or this closeness may be merely apparent, in which case it is an optical multiple star [a] Physical multiple ...
The universe is all of space and time [ a ] and their contents. [ 10 ] It comprises all of existence, any fundamental interaction, physical process and physical constant, and therefore all forms of matter and energy, and the structures they form, from sub-atomic particles to entire galactic filaments. Since the early 20th century, the field of ...
As the second brightest star in the northern sky, Vega has names in numerous cultures. In Chinese, it is known as 織女 ('weaving girl') from the Qi Xi love story. Vega is one of the vertices of the Summer Triangle asterism. /ˈviːɡə, ˈveɪɡə/ Andromeda: 14 Andromedae A: Veritate: IAU new 2015 Latin for 'where there is truth'. [26 ...