[{"n": "Brown dwarf", "u": "/e/brown-dwarfs/brown-dwarf/", "s": "Substellar objects fusing deuterium, bridging planets and stars."}, {"n": "Sub-brown dwarf", "u": "/e/brown-dwarfs/sub-brown-dwarf/", "s": "A failed star of planetary mass, formed like a star."}, {"n": "2MASS 1237+6526", "u": "/e/brown-dwarfs/2mass-1237-6526/", "s": "A T dwarf with strong Hα emission and possible planetary companion."}, {"n": "2MASS J0441+2301", "u": "/e/brown-dwarfs/2mass-j0441-2301/", "s": "A young quadruple system with the lowest known total mass."}, {"n": "2MASS J02431371−2453298", "u": "/e/brown-dwarfs/2mass-j02431371-2453298/", "s": "A T6 brown dwarf 36.6 light-years away in Fornax."}, {"n": "2MASS J03480772−6022270", "u": "/e/brown-dwarfs/2mass-j03480772-6022270/", "s": "Fastest-rotating brown dwarf, nearing its break-up speed."}, {"n": "2MASS J03552337+1133437", "u": "/e/brown-dwarfs/2mass-j03552337-1133437/", "s": "Young, low-gravity brown dwarf with a red, dusty photosphere."}, {"n": "2MASS J04070752+1546457", "u": "/e/brown-dwarfs/2mass-j04070752-1546457/", "s": "One of the fastest-rotating brown dwarfs, nearing its breakup speed."}, {"n": "2MASS J04151954−0935066", "u": "/e/brown-dwarfs/2mass-j04151954-0935066/", "s": "Reference standard for the T8 brown dwarf spectral class."}, {"n": "2MASS J05325346+8246465", "u": "/e/brown-dwarfs/2mass-j05325346-8246465/", "s": "Possible first brown dwarf in the galactic halo."}, {"n": "2MASS J09373487+2931409", "u": "/e/brown-dwarfs/2mass-j09373487-2931409/", "s": "A nearby T6 brown dwarf with a metal-poor atmosphere."}, {"n": "2MASS J10475385+2124234", "u": "/e/brown-dwarfs/2mass-j10475385-2124234/", "s": "First T-class brown dwarf detected in radio waves."}, {"n": "2MASS J11145133−2618235", "u": "/e/brown-dwarfs/2mass-j11145133-2618235/", "s": "A T7.5 brown dwarf 18 light-years away in Hydra."}, {"n": "2MASS J11263991−5003550", "u": "/e/brown-dwarfs/2mass-j11263991-5003550/", "s": "A rare blue L-dwarf with patchy clouds causing its unusual color."}, {"n": "2MASS J22282889−4310262", "u": "/e/brown-dwarfs/2mass-j22282889-4310262/", "s": "First brown dwarf with a detailed multi-altitude weather map."}, {"n": "Beta Circini", "u": "/e/brown-dwarfs/beta-circini/", "s": "A bright A-type star with a distant brown dwarf companion."}, {"n": "BW Sculptoris", "u": "/e/brown-dwarfs/bw-sculptoris/", "s": "A cataclysmic variable with the shortest known orbital period."}, {"n": "CEN 16", "u": "/e/brown-dwarfs/cen-16/", "s": "O-type star in Omega Nebula with a rare brown dwarf candidate."}, {"n": "CFBDSIR 2149−0403", "u": "/e/brown-dwarfs/cfbdsir-2149-0403/", "s": "A free-floating planetary-mass object or low-mass brown dwarf in Aquarius."}, {"n": "CoRoT-3b", "u": "/e/brown-dwarfs/corot-3b/", "s": "A massive transiting brown dwarf with a density greater than osmium."}, {"n": "CT Chamaeleontis b", "u": "/e/brown-dwarfs/ct-chamaeleontis-b/", "s": "A disputed-mass companion with a carbon-rich circumplanetary disk."}, {"n": "CWISE J1055+5443", "u": "/e/brown-dwarfs/cwise-j1055-5443/", "s": "A peculiar Y-dwarf with extreme colors and possible young age."}, {"n": "Delta Virginis", "u": "/e/brown-dwarfs/delta-virginis/", "s": "A red giant star in Virgo, also known as Minelauva."}, {"n": "Eta Coronae Borealis", "u": "/e/brown-dwarfs/eta-coronae-borealis/", "s": "A binary star system with a distant brown dwarf companion."}, {"n": "Gaia DR3 2893941099963718528", "u": "/e/brown-dwarfs/gaia-dr3-2893941099963718528/", "s": "Blue straggler star with a close substellar companion."}, {"n": "GD 165", "u": "/e/brown-dwarfs/gd-165/", "s": "First dwarf cooler than M-type stars, later reclassified as L4 brown dwarf."}, {"n": "Gliese 504 b", "u": "/e/brown-dwarfs/gliese-504-b/", "s": "A directly imaged substellar object with disputed planetary or brown dwarf status."}, {"n": "Gliese 569", "u": "/e/brown-dwarfs/gliese-569/", "s": "A flare star orbited by a binary pair of high-mass brown dwarfs."}, {"n": "Gliese 570 D", "u": "/e/brown-dwarfs/gliese-570-d/", "s": "One of the coolest brown dwarfs known, orbiting the Gliese 570 system."}, {"n": "Habitability of brown dwarf systems", "u": "/e/brown-dwarfs/habitability-of-brown-dwarf-systems/", "s": "Brown dwarf habitability faces challenges from cooling and tidal forces."}, {"n": "HD 984", "u": "/e/brown-dwarfs/hd-984/", "s": "F-type star with a directly imaged brown dwarf companion."}, {"n": "HD 4113", "u": "/e/brown-dwarfs/hd-4113/", "s": "A Sun-like star with a giant planet and a directly imaged brown dwarf."}, {"n": "HD 4747", "u": "/e/brown-dwarfs/hd-4747/", "s": "A nearby star with a directly imaged brown dwarf companion."}, {"n": "HD 13189", "u": "/e/brown-dwarfs/hd-13189/", "s": "A K-type giant star with a massive substellar companion discovered in 2005."}, {"n": "HD 16760", "u": "/e/brown-dwarfs/hd-16760/", "s": "A binary system with a debated brown dwarf or red dwarf companion."}, {"n": "HD 29587", "u": "/e/brown-dwarfs/hd-29587/", "s": "A hyper-velocity halo star with a probable brown dwarf companion."}, {"n": "HD 33636", "u": "/e/brown-dwarfs/hd-33636/", "s": "A G-type star with a debated substellar companion."}, {"n": "HD 38529", "u": "/e/brown-dwarfs/hd-38529/", "s": "Binary star system with a brown dwarf companion near the deuterium fusion limit."}, {"n": "HD 41004", "u": "/e/brown-dwarfs/hd-41004/", "s": "Binary star system with a close-orbiting brown dwarf."}, {"n": "HD 46588", "u": "/e/brown-dwarfs/hd-46588/", "s": "An F7 V star with a brown dwarf, debris disk, and candidate planet."}, {"n": "HD 63754", "u": "/e/brown-dwarfs/hd-63754/", "s": "A G-type star with a massive brown dwarf companion."}, {"n": "HD 72945 and HD 72946", "u": "/e/brown-dwarfs/hd-72945-and-hd-72946/", "s": "A co-moving star system with a brown dwarf companion."}, {"n": "HD 89744", "u": "/e/brown-dwarfs/hd-89744/", "s": "F-type star with two exoplanets and a brown dwarf companion."}, {"n": "HD 126053", "u": "/e/brown-dwarfs/hd-126053/", "s": "Solar analog star with a metal-poor T dwarf companion."}, {"n": "HD 128717", "u": "/e/brown-dwarfs/hd-128717/", "s": "A faint F8 star with a confirmed brown dwarf companion."}, {"n": "HD 131664", "u": "/e/brown-dwarfs/hd-131664/", "s": "A metal-rich G3 V star with a brown dwarf in its habitable zone."}, {"n": "HD 136118", "u": "/e/brown-dwarfs/hd-136118/", "s": "F7V star with a brown dwarf companion discovered in 2002."}, {"n": "HD 136164", "u": "/e/brown-dwarfs/hd-136164/", "s": "A binary system with a directly imaged brown dwarf companion."}, {"n": "HD 140913", "u": "/e/brown-dwarfs/hd-140913/", "s": "A solar-type star with a companion near the brown dwarf–star boundary."}, {"n": "HD 142250", "u": "/e/brown-dwarfs/hd-142250/", "s": "A B6Vp helium-weak star with a wide brown dwarf candidate."}, {"n": "HD 167665", "u": "/e/brown-dwarfs/hd-167665/", "s": "An F-type star with a confirmed brown dwarf companion."}, {"n": "HD 168443", "u": "/e/brown-dwarfs/hd-168443/", "s": "A G6V star with a super-Jupiter and a brown dwarf."}, {"n": "HD 180902", "u": "/e/brown-dwarfs/hd-180902/", "s": "A K0 subgiant in Sagittarius with a brown dwarf companion."}, {"n": "HD 190655", "u": "/e/brown-dwarfs/hd-190655/", "s": "A triple system with a highly irradiated brown dwarf transiting an evolved star."}, {"n": "HD 191760", "u": "/e/brown-dwarfs/hd-191760/", "s": "A G-type star with a disputed brown dwarf later reclassified as a red dwarf."}, {"n": "HD 202206", "u": "/e/brown-dwarfs/hd-202206/", "s": "A metal-rich star with a brown dwarf and planet in resonance."}, {"n": "HD 203030", "u": "/e/brown-dwarfs/hd-203030/", "s": "A young K-dwarf with a directly imaged substellar companion."}, {"n": "HD 217786", "u": "/e/brown-dwarfs/hd-217786/", "s": "Binary system with a superjovian planet or brown dwarf on an eccentric orbit."}, {"n": "HD 221420", "u": "/e/brown-dwarfs/hd-221420/", "s": "A solar analogue in Octans with a brown dwarf companion."}, {"n": "HIP 5158", "u": "/e/brown-dwarfs/hip-5158/", "s": "An orange dwarf with two substellar companions, one possibly a brown dwarf."}, {"n": "HIP 81208", "u": "/e/brown-dwarfs/hip-81208/", "s": "First directly imaged binary with substellar companions around both stars."}, {"n": "Jupiter-mass binary object", "u": "/e/brown-dwarfs/jupiter-mass-binary-object/", "s": "Hypothetical planetary-mass binaries reported but not confirmed in Orion."}, {"n": "Kappa Andromedae b", "u": "/e/brown-dwarfs/kappa-andromedae-b/", "s": "A directly imaged super-Jupiter with debated planetary or brown dwarf status."}, {"n": "KMT-2024-BLG-0404L", "u": "/e/brown-dwarfs/kmt-2024-blg-0404l/", "s": "Red dwarf with a Neptune-mass planet and a brown dwarf companion."}, {"n": "L dwarf", "u": "/e/brown-dwarfs/l-dwarf/", "s": "L dwarfs bridge the gap between stars and brown dwarfs."}, {"n": "Nemesis (hypothetical star)", "u": "/e/brown-dwarfs/nemesis-hypothetical-star/", "s": "Hypothetical companion star proposed to explain periodic mass extinctions."}, {"n": "NGC 4349-127", "u": "/e/brown-dwarfs/ngc-4349-127/", "s": "A red giant whose brown dwarf companion was later retracted."}, {"n": "OGLE-2015-BLG-1319", "u": "/e/brown-dwarfs/ogle-2015-blg-1319/", "s": "Binary system with a brown dwarf discovered via joint space telescope microlensing."}, {"n": "Pi Mensae b", "u": "/e/brown-dwarfs/pi-mensae-b/", "s": "A massive exoplanet near the brown dwarf boundary."}, {"n": "T dwarf", "u": "/e/brown-dwarfs/t-dwarf/", "s": "T dwarfs are methane-rich substellar objects cooler than L dwarfs."}, {"n": "WISE 0607+2429", "u": "/e/brown-dwarfs/wise-0607-2429/", "s": "L8 brown dwarf 25 light-years away in Gemini."}, {"n": "WISE 0647−6232", "u": "/e/brown-dwarfs/wise-0647-6232/", "s": "One of the reddest and latest-type brown dwarfs known."}, {"n": "WISE 0713−2917", "u": "/e/brown-dwarfs/wise-0713-2917/", "s": "A Y0 brown dwarf discovered in 2012 by WISE data."}, {"n": "WISE 0825+2805", "u": "/e/brown-dwarfs/wise-0825-2805/", "s": "A Y0.5 dwarf 21.4 light-years away in Cancer."}, {"n": "WISE 1405+5534", "u": "/e/brown-dwarfs/wise-1405-5534/", "s": "First Y-dwarf with detected variability, a nearby brown dwarf."}, {"n": "WISE 1534−1043", "u": "/e/brown-dwarfs/wise-1534-1043/", "s": "A fast-moving, metal-poor Y-dwarf with a unique atmosphere."}, {"n": "WISE 1541−2250", "u": "/e/brown-dwarfs/wise-1541-2250/", "s": "A Y0.5 brown dwarf once thought to be the nearest known."}, {"n": "WISE 0359−5401", "u": "/e/brown-dwarfs/wise-0359-5401/", "s": "First Y-dwarf with a JWST spectral energy distribution."}, {"n": "WISE 1639−6847", "u": "/e/brown-dwarfs/wise-1639-6847/", "s": "Second closest known Y dwarf as of February 2024."}, {"n": "WISE 1800+0134", "u": "/e/brown-dwarfs/wise-1800-0134/", "s": "A nearby L7.5 brown dwarf discovered by WISE in 2011."}, {"n": "WISE 2220−3628", "u": "/e/brown-dwarfs/wise-2220-3628/", "s": "A cold Y0 brown dwarf in Grus, 34 light-years away."}, {"n": "WISE J0254+0223", "u": "/e/brown-dwarfs/wise-j0254-0223/", "s": "A T8 brown dwarf 22.3 light-years away in Cetus."}, {"n": "WISE J0521+1025", "u": "/e/brown-dwarfs/wise-j0521-1025/", "s": "A nearby T7.5 brown dwarf in Orion, once the northern sky's nearest T dwarf."}, {"n": "WISE J2030+0749", "u": "/e/brown-dwarfs/wise-j2030-0749/", "s": "A T1.5 brown dwarf independently discovered in 2013."}, {"n": "WISEA 1810−1010", "u": "/e/brown-dwarfs/wisea-1810-1010/", "s": "First extreme subdwarf of spectral type T, with a water-dominated atmosphere."}, {"n": "WISEA J120037.79−784508.3", "u": "/e/brown-dwarfs/wisea-j120037-79-784508-3/", "s": "Closest known brown dwarf with a circumstellar disk."}, {"n": "WISEPA J173835.53+273258.9", "u": "/e/brown-dwarfs/wisepa-j173835-53-273258-9/", "s": "Nearest celestial object in Hercules, a Y0 brown dwarf."}, {"n": "WISEPA J174124.26+255319.5", "u": "/e/brown-dwarfs/wisepa-j174124-26-255319-5/", "s": "A T9 brown dwarf 15 light-years away in Hercules."}, {"n": "Wolf 1130", "u": "/e/brown-dwarfs/wolf-1130/", "s": "Oldest known brown dwarf system and nearest supernova candidate."}, {"n": "Y dwarf", "u": "/e/brown-dwarfs/y-dwarf/", "s": "Coldest brown dwarfs bridging T dwarfs and giant planets."}, {"n": "2MASS J11151597+1937266", "u": "/e/brown-dwarfs/2mass-j11151597-1937266/", "s": "Young isolated planetary-mass object with an accreting disk."}, {"n": "2MASS J11193254−1137466", "u": "/e/brown-dwarfs/2mass-j11193254-1137466/", "s": "A planetary-mass binary with a candidate exomoon transit."}, {"n": "47 Ophiuchi", "u": "/e/brown-dwarfs/47-ophiuchi/", "s": "Binary star system with a distant L-type brown dwarf companion."}, {"n": "CD−35 2722", "u": "/e/brown-dwarfs/cd-35-2722/", "s": "A red dwarf with a brown dwarf companion and a candidate exomoon."}, {"n": "Cha 1107−7626", "u": "/e/brown-dwarfs/cha-1107-7626/", "s": "Lowest-mass object with hydrocarbons detected in its disk."}, {"n": "CWISE J0506+0738", "u": "/e/brown-dwarfs/cwise-j0506-0738/", "s": "Exceptionally red substellar object near the L/T transition."}, {"n": "CWISE J1249+3621", "u": "/e/brown-dwarfs/cwise-j1249-3621/", "s": "A hypervelocity star near the Milky Way's escape speed."}, {"n": "G 196-3", "u": "/e/brown-dwarfs/g-196-3/", "s": "Young M dwarf with a directly imaged brown dwarf companion."}, {"n": "HIP 17453", "u": "/e/brown-dwarfs/hip-17453/", "s": "A-type star with the first C-BASS survey brown dwarf companion."}, {"n": "HR 2562 B", "u": "/e/brown-dwarfs/hr-2562-b/", "s": "A brown dwarf orbiting within its star's debris disc."}, {"n": "PHL 5038", "u": "/e/brown-dwarfs/phl-5038/", "s": "A binary system with a polluted white dwarf and a wide-orbit brown dwarf."}, {"n": "PSO J318.5−22", "u": "/e/brown-dwarfs/pso-j318-5-22/", "s": "A free-floating planetary-mass object with no host star."}, {"n": "SDSS 1557", "u": "/e/brown-dwarfs/sdss-1557/", "s": "A white dwarf–brown dwarf binary with a circumbinary debris disk."}, {"n": "2M1207", "u": "/e/brown-dwarfs/2m1207/", "s": "Brown dwarf with the first directly imaged planetary-mass companion."}, {"n": "2MASS J04442713+2512164", "u": "/e/brown-dwarfs/2mass-j04442713-2512164/", "s": "A brown dwarf with a resolved, planet-forming disk in Taurus."}, {"n": "Eta Telescopii", "u": "/e/brown-dwarfs/eta-telescopii/", "s": "A young star with a brown dwarf and a dusty disk."}, {"n": "KPNO-Tau 12", "u": "/e/brown-dwarfs/kpno-tau-12/", "s": "A low-mass brown dwarf with an actively accreting protoplanetary disk."}, {"n": "LP 944-20", "u": "/e/brown-dwarfs/lp-944-20/", "s": "A young, rapidly rotating brown dwarf with strong magnetic activity."}, {"n": "Teide 1", "u": "/e/brown-dwarfs/teide-1/", "s": "First confirmed brown dwarf, located in the Pleiades cluster."}, {"n": "2MASS J05581644−4501559", "u": "/e/brown-dwarfs/2mass-j05581644-4501559/", "s": "Young M4V star with a wide planetary-mass T8 companion."}, {"n": "Gliese 229", "u": "/e/brown-dwarfs/gliese-229/", "s": "A nearby multiple system with a resolved binary brown dwarf."}, {"n": "HD 19467", "u": "/e/brown-dwarfs/hd-19467/", "s": "G-type star with a directly imaged T5.5 brown dwarf companion."}, {"n": "HN Pegasi", "u": "/e/brown-dwarfs/hn-pegasi/", "s": "Young Sun-like star with a wide brown dwarf companion."}, {"n": "SDSS 1624+00", "u": "/e/brown-dwarfs/sdss-1624-00/", "s": "First field T dwarf, discovered in 1999 via Sloan Digital Sky Survey."}, {"n": "SIMP J013656.5+093347", "u": "/e/brown-dwarfs/simp-j013656-5-093347/", "s": "A planetary-mass object with auroral radio emission and patchy clouds."}, {"n": "UGPS J072227.51−054031.2", "u": "/e/brown-dwarfs/ugps-j072227-51-054031-2/", "s": "Second closest known sub-brown dwarf or rogue planet to Earth."}, {"n": "UNCOVER-BD-1", "u": "/e/brown-dwarfs/uncover-bd-1/", "s": "Most distant T dwarf known, discovered in JWST's UNCOVER field."}, {"n": "WISEPA J062309.94-045624.6", "u": "/e/brown-dwarfs/wisepa-j062309-94-045624-6/", "s": "Coldest T8 brown dwarf with detected radio emission."}, {"n": "WISEPC J112254.73+255021.5", "u": "/e/brown-dwarfs/wisepc-j112254-73-255021-5/", "s": "A T6 brown dwarf with auroral radio emission and a disputed rotation period."}, {"n": "OTS 44", "u": "/e/brown-dwarfs/ots-44/", "s": "Young free-floating brown dwarf with a circumstellar disk."}, {"n": "2MASS J08381155+1511155", "u": "/e/brown-dwarfs/2mass-j08381155-1511155/", "s": "First fully resolved triple T-type brown dwarf system."}, {"n": "Capotauro", "u": "/e/brown-dwarfs/capotauro/", "s": "An enigmatic object initially mistaken for a distant galaxy, confirmed as a Y-dwarf."}, {"n": "CWISEP J1446−2317", "u": "/e/brown-dwarfs/cwisep-j1446-2317/", "s": "A Y1 brown dwarf discovered via machine learning."}, {"n": "WD 0806−661 B", "u": "/e/brown-dwarfs/wd-0806-661-b/", "s": "Coldest known brown dwarf at discovery, orbiting a white dwarf."}, {"n": "WISE 1828+2650", "u": "/e/brown-dwarfs/wise-1828-2650/", "s": "Archetypal Y-class brown dwarf or free-floating planet."}, {"n": "WISE J0830+2837", "u": "/e/brown-dwarfs/wise-j0830-2837/", "s": "Candidate Y dwarf, one of the reddest known."}, {"n": "WISE J1206+8401", "u": "/e/brown-dwarfs/wise-j1206-8401/", "s": "Y0 brown dwarf with metal-rich composition and deep CO₂ features."}, {"n": "WISEPC J205628.90+145953.3", "u": "/e/brown-dwarfs/wisepc-j205628-90-145953-3/", "s": "One of the first six confirmed Y‑type brown dwarfs."}, {"n": "2M1207b", "u": "/e/brown-dwarfs/2m1207b/", "s": "One of the first directly imaged candidate exoplanets."}]