A substellar object, sometimes called a substar, is an astronomical object, the mass of which is smaller than the smallest mass at which hydrogen fusion...

J1407b is a substellar object, either a free-floating planet or brown dwarf, with a massive circumplanetary disk or ring system. It was first detected...

A Thorne–Żytkow object (TŻO or TZO), also known as a hybrid star, is a conjectured type of star wherein a red giant or red supergiant contains a neutron...

end as dispersed cold particles or some form of compact stellar or substellar object, according to thermodynamics. The stars called white or degenerate...

burning, is a nuclear fusion reaction that occurs in stars and some substellar objects, in which a deuterium nucleus (deuteron) and a proton combine to form...

planet Hot Jupiter Red dwarf Rogue planet Substellar object List of planet types Lists of astronomical objects Working Group on Extrasolar Planets – Definition...

also been applied to hypothetical late-stage cooled brown dwarfs – substellar objects with insufficient mass (less than approximately 0.07 M☉) to maintain...

any white dwarf to have yet cooled to "black". A brown dwarf is a substellar object not massive enough to ever fuse hydrogen into helium, but still massive...

first case of linking white dwarf pollution with the presence of a substellar object. It is thought that the orbits of planetesimals are being disrupted...

gravitationally bound non-stellar objects in orbit around a star or star system Substellar object – Astronomical object without the mass to sustain hydrogen...

Brown dwarfs are substellar objects that have more mass than the biggest gas giant planets, but less than the least massive main-sequence stars. Their...

= -2.4 ± 0.2. The same team found that ⅓ of known L-subdwarfs are substellar objects and ⅔ are low-mass stars. CWISE J1249+3621 (sdL1, 0.082+0.002 −0.003...

Herbig–Haro (HH) objects are bright patches of nebulosity associated with newborn stars. They are formed when narrow jets of partially ionised gas ejected...

pre-main-sequence star that was eclipsed by the likely free-floating substellar object J1407b in April–June 2007. With an age around 20 million years, the...

Young stellar object (YSO) denotes a star in its early stage of evolution. This class consists of two groups of objects: protostars and pre-main-sequence...

This article documents the most distant astronomical objects discovered and verified so far, and the time periods in which they were so classified. For...

planets. Notable neutron stars, black holes, and other exotic stellar objects/remnants. Note that these lists are currently unfinished, and there may...

"Discovery of a close substellar companion to the hot subdwarf star HD 149382 — the decisive influence of substellar objects on late stellar evolution"...

exceptionally red substellar object, likely located in the Beta Pictoris moving group. CWISE J0506+0738 was first noticed as a high proper motion object in WISE...

CFHTWIR-Oph 98 B is a substellar object, either an exoplanet or a sub-brown dwarf that orbits CFHTWIR-Oph 98 A, a M-type brown dwarf. The pair form a...

NIRCam data and found that most JuMBOs did not appear in his sample of substellar objects. Moreover the color were consistent with reddened background sources...

2007 was interpreted as a substellar object with a circumstellar disk or massive rings transiting the star. This substellar object, dubbed "J1407b", is most...

radiation. The frequency range of that radiation depends on the central object's mass. Accretion disks of young stars and protostars radiate in the infrared;...

Remnants Planetary nebulae Timeline of stellar astronomy Related Substellar object Brown dwarf Desert Sub Planet Galactic year Galaxy Guest Gravity Intergalactic...

Hillenbrand, Lynne A. (2006-09-20). "Multiplicity and Optical Excess across the Substellar Boundary in Taurus". The Astrophysical Journal. 649 (1): 306–318. arXiv:astro-ph/0602449...

some Bok globules contain embedded warm sources, some contain Herbig–Haro objects, and some show outflows of molecular gas. Millimeter-wave emission line...

to M. Some of these objects have masses large enough to support hydrogen fusion and are therefore stars, but most are of substellar mass and are therefore...

(2010). "The PHASES Differential Astrometry Data Archive. V. Candidate Substellar Companions to Binary Systems". The Astronomical Journal. 140 (6): 1657...

Kingdom and Ireland Spectral class Y, spectral classification of a substellar object Economy class (travel class code used by airlines: "Y") Class Y, a...

cards on Earth. As of 2020[update], they are the most powerful magnetic objects detected throughout the universe. As described in the February 2003 Scientific...