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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.
It was the smallest known star from 1948 to 1981. [105] TRAPPIST-1: 82,925: Hosts a planetary system with at least seven rocky planets. [106] LHS 2090: 83,500 [107] Teegarden's Star: 83,500 Has two potentially habitable planets. [108] VB 8: 84,450 [105] SPECULOOS-3: 85,570 Second-smallest star known to host a transiting exoplanet after TRAPPIST ...
EBLM J0555-57 is a triple star system approximately 670 light-years from Earth. The system's discovery was released on July 12, 2017. EBLM J0555-57Ab, the smallest star in the system, orbits its primary star with a period of 7.8 days, and currently is the smallest known star with a mass sufficient to enable the fusion of hydrogen in its core.
The cosmic bodies are slightly bigger than Jupiter and have no star to orbit. Instead, the researchers at Johns Hopkins University suspect the rogue worlds nearly 1,000 light-years from Earth came ...
The sizes and masses of many of the moons of Jupiter and Saturn are fairly well known due to numerous observations and interactions of the Galileo and Cassini orbiters; however, many of the moons with a radius less than ~100 km, such as Jupiter's Himalia, have far less certain masses. [5]
With a mass only 93 times that of Jupiter (M J), or .09 M ☉, AB Doradus C, a companion to AB Doradus A, is the smallest known star undergoing nuclear fusion in its core. [12] For stars with similar metallicity to the Sun, the theoretical minimum mass the star can have, and still undergo fusion at the core, is estimated to be about 75 M J.
With a mass only 93 times that of Jupiter (M J), or .09 M ☉, AB Doradus C, a companion to AB Doradus A, is the smallest known star undergoing nuclear fusion in its core. [11] For stars with similar metallicity to the Sun, the theoretical minimum mass the star can have, and still undergo fusion at the core, is estimated to be about 75 M J.
The mass ratio of this planet with its star is more than 100 times greater than that of Earth and the sun. ... the smallest of our solar system's four gas planets. Neptune's diameter is about four ...