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* [[Extraterrestrial (disambiguation)|Extraterrestrial]], referring to objects or phenomena existing within the Solar System, but not on Earth * [[Extragalactic astronomy]], the study of objects outside the Milky Way Galaxy ...

...d at the lower limit. The star system consists of a [[white dwarf]] with a substellar-mass former star in [[orbit]]. The [[substellar object|substellar mass]] in orbit around the white dwarf is a star that lost all of its gas t ...

...me=kervella2019>{{citation |bibcode=2019A&A...623A..72K |title=Stellar and substellar companions of nearby stars from Gaia DR2. Binarity from proper motion anoma [[Category:Bayer objects|Centauri, K]] ...

...086/375813/fulltext/57859.text.html|doi = 10.1086/375813|title = The First Substellar Subdwarf? Discovery of a Metal-poor L Dwarf with Halo Kinematics|year = 200 ...]] observed in the [[galactic halo]] of the Milky Way, and the first known substellar [[subdwarf]] star.<ref name="Faherty2012" /><ref name="Burgasser2003" /> It ...

...tor|equatorial]] [[constellation]] of [[Serpens]]. It is known to have two substellar companions. With an [[apparent visual magnitude]] of 6.92,<ref name=Anderso ...massless particles orbiting in between these two bodies show that all such objects are quickly ejected within two million years. That suggests any other plane ...

[[Category:Free-floating substellar objects]] [[Category:Astronomical objects discovered in 2004|?]] ...

...bserved for the star R Leonis may be due to the presence of an evaporating substellar companion, probably an [[extrasolar planet]]. They have inferred a putative [[Category:Objects with variable star designations|Leonis, R]] ...

{{short description|Astronomical objects of planetary size that did not form in orbit around a star }} ...ass]], therefore by definition below the [[Deuterium fusion#In sub-stellar objects|limiting mass]] for [[thermonuclear fusion]] of [[deuterium]] (about {{Jupi ...

...oon]] orbit, [[Saturn]], [[OGLE-TR-122b]], [[Jupiter]], and [[1 E7 m|other objects]], to scale. ...|first2=Isabelle |year=2000 |title=Theory of Low-Mass Stars and Substellar Objects |journal=Annual Review of Astronomy and Astrophysics |language=en |volume=3 ...

...of 1.35 years. So far there has been no confirmation about the presence a substellar object. [[Category:Durchmusterung objects]] ...

| title=Stellar and substellar companions of nearby stars from Gaia DR2. Binarity from proper motion anoma [[Category:Durchmusterung objects]] ...

...y system with the star [[HD 181327]]<ref name="neuhauser2011" /> and has a substellar companion orbiting around it, named Eta Telescopii B.<ref name=Nogueira2024 ...he host star.<ref name=Wyatt2007/> Subsequent imaging showed there were no objects of 20 Jupiter masses or greater between the disk and the brown dwarf, leadi ...

...HD 1237 A being studied carefully for the first time, especially after its substellar companion was discovered. It is currently believed that it is 800 million y ...ml | title=Screening the Hipparcos-based astrometric orbits of sub-stellar objects |author1=Pourbaix, D. |author2=Arenou, F. | journal=[[Astronomy and Astrop ...

...nebula]] [[IC 2631]]. It is among the lowest-mass free-floating substellar objects, with approximately 11.5 times the mass of [[Jupiter]], or approximately 1. [[Category:Free-floating substellar objects]] ...

The companion is a high-mass substellar [[brown dwarf]] of spectral class L4 ± 1.5, only a few Jupiter masses below [[Category:Durchmusterung objects]] ...

| title=Stellar and substellar companions of nearby stars from Gaia DR2: Binarity from proper motion anoma [[Category:Bayer objects|Camelopardalis, Gamma]] ...

| title=Stellar and substellar companions of nearby stars from Gaia DR2. Binarity from proper motion anoma [[Category:Bayer objects|Cancri, Pi2]] ...

...0.4048|title=The Phases Differential Astrometry Data Archive. V. Candidate Substellar Companions to Binary Systems|journal=The Astronomical Journal|volume=140|is [[Category:Henry Draper Catalogue objects|013872]] ...

==Substellar companion== ...velocity]] variations in Delta Virginis (HD 112300), showing evidence of a substellar companion, likely a [[brown dwarf]].<ref name="Lee2023"/> ...

...ervella2022>{{cite journal |bibcode=2022A&A...657A...7K |title=Stellar and substellar companions from Gaia EDR3. Proper-motion anomaly and resolved common proper [[Category:Objects with variable star designations|Camelopardalis, BV]] ...