Editing Brown dwarf (section)

=== Milestones ===
* 1995: First brown dwarf verified. [[Teide 1]], an M8 object in the [[Pleiades]] [[star cluster|cluster]], is picked out with a CCD in the Spanish Observatory of Roque de los Muchachos of the [[Instituto de Astrofísica de Canarias]].
* First methane brown dwarf verified. Gliese 229B is discovered orbiting red dwarf [[Gliese 229]]A (20 ly away) using an [[adaptive optics]] coronagraph to sharpen images from the {{Convert|60|in|m|adj=on}} reflecting telescope at [[Palomar Observatory]] on Southern California's [[Mount Palomar]]; follow-up infrared spectroscopy made with their {{Convert|200|in|m|adj=on}} [[Hale Telescope]] shows an abundance of methane.
* 1998: First X-ray-emitting brown dwarf found. Cha Helpha 1, an M8 object in the [[Chamaeleon complex|Chamaeleon I]] dark cloud, is determined to be an X-ray source, similar to convective late-type stars.
* 15 December 1999: First X-ray flare detected from a brown dwarf. A team at the University of California monitoring [[LP 944-20]] ({{Jupiter mass|60}}, 16 ly away) via the [[Chandra X-ray Observatory]], catches a 2-hour flare.<ref>{{cite journal |last1=Rutledge |first1=Robert E. |last2=Basri |first2=Gibor |last3=Martín |first3=Eduardo L. |last4=Bildsten |first4=Lars |title=Chandra Detection of an X-Ray Flare from the Brown Dwarf LP 944-20 |journal=The Astrophysical Journal |date=1 August 2000 |volume=538 |issue=2 |pages=L141–L144 |arxiv=astro-ph/0005559 |bibcode=2000ApJ...538L.141R |doi=10.1086/312817 |s2cid=17800872 }}</ref>
* 27 July 2000: First radio emission (in flare and quiescence) detected from a brown dwarf. A team of students at the [[Very Large Array]] detected emission from LP 944–20.<ref name="Berger2001">{{cite journal |last1=Berger |first1=Edo |last2=Ball |first2=Steven |last3=Becker |first3=Kate M. |last4=Clarke |first4=Melanie |last5=Frail |first5=Dale A. |last6=Fukuda |first6=Therese A. |last7=Hoffman |first7=Ian M. |last8=Mellon |first8=Richard |last9=Momjian |first9=Emmanuel |last10=Murphy |first10=Nathanial W. |last11=Teng |first11=Stacey H. |last12=Woodruff |first12=Timothy |last13=Zauderer |first13=B. Ashley |last14=Zavala |first14=Robert T. <!-- see https://public.nrao.edu/news/first-radio-emission-seen-from-a-brown-dwarf/ for the names -->|title=Discovery of radio emission from the brown dwarf LP944-20 |journal=Nature |date=2001-03-15 |volume=410 |issue=6826 |pages=338–340 |arxiv=astro-ph/0102301 |bibcode=2001Natur.410..338B |doi=10.1038/35066514 |pmid=11268202 |s2cid=4411256 |url=https://cds.cern.ch/record/487607|archive-url=https://web.archive.org/web/20210427121818/https://cds.cern.ch/record/487607 |url-status=dead |archive-date=2021-04-27 |type=Submitted manuscript }}</ref>
* 30 April 2004: First detection of a candidate [[exoplanet]] around a brown dwarf: [[2M1207b]] discovered with the [[Very Large Telescope|VLT]] and the first directly imaged exoplanet.<ref>{{cite press release|first1=Gael |last1=Chauvin |first2=Ben |last2=Zuckerman |first3=Anne-Marie |last3=Lagrange |url=https://www.eso.org/public/news/eso0515/ |title=Yes, it is the Image of an Exoplanet: Astronomers Confirm the First Image of a Planet Outside of Our Solar System |publisher=European Southern Observatory |access-date=2020-02-09 }}</ref>
* 20 March 2013: Discovery of the closest brown dwarf system: Luhman 16.<ref>{{cite journal |last=Luhman |first=Kevin L. |date=April 2013 |title=Discovery of a Binary Brown Dwarf at 2 pc from the Sun |journal=Astrophysical Journal Letters |volume=767 |issue=1 |pages=L1 |doi=10.1088/2041-8205/767/1/L1 |arxiv=1303.2401 |bibcode=2013ApJ...767L...1L |s2cid=8419422 |issn=0004-637X }}</ref>
* 25 April 2014: Coldest-known brown dwarf discovered. [[WISE 0855−0714]] is 7.2 light-years away (seventh-closest system to the Sun) and has a temperature between −48 and −13&nbsp;°C.<ref name="NASA20140425">{{cite web |last1=Clavin |first1=Whitney |last2=Harrington |first2=J. D. |date=25 April 2014 |title=NASA's Spitzer and WISE Telescopes Find Close, Cold Neighbor of Sun |url=http://www.nasa.gov/jpl/wise/spitzer-coldest-brown-dwarf-20140425/ |url-status=live |archive-url=https://web.archive.org/web/20140426004939/http://www.nasa.gov/jpl/wise/spitzer-coldest-brown-dwarf-20140425 |archive-date=26 April 2014 |website=[[NASA]].gov}}</ref>