| 词条 | 2MASS J22282889-4310262 |
| 释义 |
|name=2MASS J22282889-4310262}}{{Starbox image |image= |caption=Artist's representation of 2MASS J22282889-4310262 }}{{starbox observe |epoch=J2000 |constell=Grus |ra={{RA|22|28|28.894}}[1] |dec={{DEC|-43|10|26.27}}[1] }}{{starbox character |class=T6.5[2] |appmag_1_passband=J |appmag_1=15.662[1] |appmag_2_passband=H |appmag_2=15.363[1] |appmag_3_passband=K |appmag_3=15.296[1] }}{{starbox astrometry |prop_mo_ra=51.7[2] |prop_mo_dec=-301.3[2] |parallax=94.0 |p_error=7.0 |parallax_footnote=[3] }}{{starbox detail |source=[4] |rotation=1.405 |temperature=900 |gravity=5 }}{{starbox catalog |names=2MASS J22282889-4310262, WISEP J222829.00-431029.4 }}{{starbox reference |Simbad=2MASS+J22282889-4310262 }}{{starbox end}} 2MASS J22282889-4310262 is a brown dwarf discovered by The Hubble Space Telescope and The Spitzer Space Telescope in 2013. Through the uses of the Hubble and Spitzer, NASA astronomers were able to develop the most detailed 'weather map' for the brown dwarf utilizing different wavelengths of infrared light to show changing light patterns and different layers of material in the windstorms (the layers were generated because water and methane vapors infrared wavelengths). This observation was the first time that researchers were able to probe such variability at different altitudes of the body.[5] On the outer layers of the star, gases condense into raindrop like particles made up of sand and iron which fall onto the interior.[6] Researchers also determined that the object's temperature ranges from 1,100 to 1,300 degrees Fahrenheit (600 to 700 degrees Celsius). References1. ^1 2 3 4 {{cite journal|accessdate=|title=2MASS All-Sky Catalog of Point Sources|date=2003|journal=VizieR On-line Data Catalog|author1=Cutri, R. M.|bibcode=2003yCat.2246....0C}} {{Brown-dwarf-stub}}2. ^1 2 {{cite simbad|title=2MASS J22282889-4310262|accessdate=19 December 2016}} 3. ^{{cite journal|accessdate=|title=The Brown Dwarf Kinematics Project (BDKP). III. Parallaxes for 70 Ultracool Dwarfs|date=2012|journal=The Astrophysical Journal|volume=752|author1=Faherty, Jacqueline K.|bibcode=2012ApJ...752...56F|doi=10.1088/0004-637X/752/1/56|arxiv=1203.5543|page=56}} 4. ^{{cite journal|date=24 October 2012|title=Vertical Atmospheric Structure in a Variable Brown Dwarf: Pressure-dependent Phase Shifts in Simultaneous Hubble Space Telescope-Spitzer Light Curves|author1=Esther Buenzli|display-authors=etal|arxiv=1210.6654|doi=10.1088/2041-8205/760/2/L31|volume=760|journal=The Astrophysical Journal|page=L31|bibcode = 2012ApJ...760L..31B }} 5. ^{{Cite web|title = NASA Telescopes See Weather Patterns in Brown Dwarf|url = http://www.jpl.nasa.gov/news/news.php?release=2013-013|website = NASA/JPL|accessdate = 2015-12-03}} 6. ^{{Cite web|title = 2MASSJ22282889-431026: The Hybrid Planet-Star With A Stormy Atmosphere|url = http://www.science20.com/news_articles/2massj22282889431026_hybrid_planetstar_stormy_atmosphere-100573|website = Science 2.0|accessdate = 2015-12-03}} 5 : Astronomical objects discovered in 2013|Brown dwarfs|2MASS objects|Grus (constellation)|T-type stars |
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