Sub-brown dwarf
Sub-brown dwarf
Astronomical objects of planetary size that did not form in orbit around a star.
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Readers' pathsAug 2026 – Oct 2026
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Brown dwarf
Substellar object.
19%
Rogue planet
Planet not gravitationally bound to a star.
14%
2MASS J0441+2301
Young star system in the constellation Taurus.
7.6%
WISE 0855−0714
Brown dwarf in the constellation Hydra.
7.2%
2M1207b
Planetary-mass object orbiting the brown dwarf 2M1207.
3.7%
WD 0806−661
DQ white dwarf star in the constellation Volans.
3.4%
WISE J0336−0143
Binary brown dwarf system in the constellation Eridanus.
3.2%
HD 106906 b
Exoplanet in the constellation Crux.
3%
ROXs 42Bb
Circumbinary planetary-mass object orbiting ROXs 42B.
2.8%
Planetary-mass object
Size-based definition of celestial objects.
2.4%
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Rogue planet
Planet not gravitationally bound to a star.
19%
Brown dwarf
Substellar object.
13%
J1407b
Disked object that eclipsed V1400 Centauri.
6.8%
Exoplanet
Planet outside of the Solar System.
5.5%
Cha 110913−773444
Brown dwarf in the constellation Chamaleon.
3.5%
Planetary-mass object
Size-based definition of celestial objects.
3.5%
PSO J318.5−22
Extrasolar free-floating planet.
2.6%
Hot Jupiter
Gas giant planet orbiting close to a star.
2.5%
OTS 44
Brown dwarf in the constellation Chamaeleon.
2%
Stellar evolution
Changes to stars over their lifespans.
1.5%