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Luhman 16 A and Luhman 16 B are the closest brown dwarf stars to Earth, and the third-nearest star system to the Solar System. [e] SSSPM J0829-1309: 61,300 Red dwarf: An L2 dwarf that is fusing hydrogen. Similarly to 2MASS J0523-1403, SSSPM J0829-1309 is one of the least luminous and massive hydrogen-fusing stars, and is smaller than Jupiter ...
The smaller star, OGLE-TR-122B, is estimated to have a radius around 0.12 solar radii, or around 20% larger than Jupiter's, and a mass of around 0.1 solar masses, or approximately 100 times Jupiter's. This makes its average density approximately 50 times the Sun's [2] [3] or over 80 times the density of water.
Parts-per-million chart of the relative mass distribution of the Solar System, each cubelet denoting 2 × 10 24 kg. This article includes a list of the most massive known objects of the Solar System and partial lists of smaller objects by observed mean radius. These lists can be sorted according to an object's radius and mass and, for the most ...
The closest encounter to the Sun so far predicted is the low-mass orange dwarf star Gliese 710 / HIP 89825 with roughly 60% the mass of the Sun. [4] It is currently predicted to pass 0.1696 ± 0.0065 ly (10 635 ± 500 au) from the Sun in 1.290 ± 0.04 million years from the present, close enough to significantly disturb the Solar System's Oort ...
Vega is the bright star near the bottom. Each night the positions of the stars appear to change as the Earth rotates. However, when a star is located along the Earth's axis of rotation, it will remain in the same position and thus is called a pole star.
A substellar object may be a companion of a star, [9] such as an exoplanet or brown dwarf that is orbiting a star. [10] Objects as low as 8–23 Jupiter masses have been called substellar companions. [11] Objects orbiting a star are often called planets below 13 Jupiter masses and brown dwarves above that. [12]
It wasn't long ago that astronomers detected the presence of what was then considered the most distant object in our solar system. The object, called 2018 VG18, was given the fitting nickname of ...
Also the nearest star to the Solar System. Barnard's Star: 5.96 [5] M4.0V [6] 0.187 ± 0.001 [7] 0.161 [7] 9.511 [8] 13.21 [8] Also the second-nearest stellar system to the Solar System. Wolf 359: 7.856 ± 0.001 [5] M6V [9] 0.144 ± 0.004 [7] 0.11 ± 0.003 [7] 13.507 [10] 16.614 [11] Also the fourth-nearest stellar system to the Solar System ...