TRAPPIST-1

Mga koordinado: Mapang panlangit 23h 06m 29.383s, −05° 02′ 28.59″

TRAPPIST-1[1]

Lokasyon ng TRAPPIST-1 sa konstelasyon Aquarius.
Impormasyon sa pagtingin
Epoka       Equinox
Konstelasyon Aquarius
Kanang asensiyon 23h 06m 29.283s[2]
Deklinasyon –05° 02′ 28.59″[2]
Maliwanag na  kalakhan (V)18.80
Katangian
Pag-uuring pambituinM8V[3]
V−R sa talatuntunan ng kulay2.33
R−I sa talatuntunan ng kulay2.47
Astrometriya
Radyal na hagibis (Rv)−56.3 km/s
Paralaks (π)82.58 mas
Layo39.5 ± 1.3 st
(12.1 ± 0.4 pc)
Lubusang kalakhan (MV)18.4 ± 0.1
Detalye
Bigat0.08 ± 0.009 M☉
Bigat83.8048 ± 9.428 MJup
Radyos0.114 ± 0.006 R☉
Luminosidad(bolometriko)0.000525±0.000036[4] L☉
Luminosidad(nakikita, LV)0.00000373 L☉
Pang-ibabaw na grabidad (log g)~5.227[note 1][5]
Temperatura2550 ± 55 K
Metalisidad0.04 ± 0.08
Rotasyon1.40 ± 0.05 days
Rotasyonal na hagibis (v sin i)6 ± 2 km/s
Edad> 1 Gyr
Iba pang pagtatanda
2MASS J23062928-0502285, 2MASSI J2306292-050227, 2MASSW J2306292-050227, 2MUDC 12171
Sangguniang pangimpormasyon
SIMBADdata

TRAPPIST-1, tinatawag din na 2MASS J23062928-0502285,[6] ay isang brown dwarf[4][7] distansya kami 39 light-year (12 parsec; 370 petametro) sa konstelasyon Aquarius.[8]. Noong Pebrero 2017, ang bituin na ito ay may 7 na planeta na tulad ng Earth na nag-oorbit nito, ang pinakamalaking bilang ng mga planetang tulad ng Earth kumpara sa anumang iba pang planeta system.[9][10]

Natuklasan

Ang isang pangkat ng mga astronomo sa ilalim ng utos ni Michaël Gillon (fr) ng Institut d'Astrophysique et Géophysique [Institut d'Astrophysique et Géophysique] sa Liège University.[11] sa ang Belgium ay gumagamit ng Trappist telescope (maliit na teleskopyo upang maghanap ng mga maliliit na planeta at mga planeta ng transit) sa La Silla Observatory sa Atacama desert, Chile, [12] upang obserbahan ang mga bituin at maghanap ng mga planeta na nag-oorbit sa paligid. Sa pamamagitan ng paggamit ng photometry, natuklasan nila ang tatlong planeta na may sukat sa Earth na nag-oorbit sa isang dwarf; ang parehong dalawa ay ang tidal lock sa kanilang mga host stars habang ang pinakamalayo na lugar ng sistema ay lumilitaw o sa labas lamang nito. Ang bawat planeta ay may kakayahang maglaman ng ibabaw na tubig at buhay. [7][13] Napagmasdan ng koponan ang mga ito mula Setyembre hanggang Disyembre 2015 at na-publish ang kanilang mga natuklasan sa haligi ng Mayo 2016 Nature.[12][14]

Noong Pebrero 22, 2017, inihayag ng mga astronomo ang apat na iba pang mga dayuhan na planeta sa paligid ng Trappist-1. Natuklasan nila ang kabuuang bilang ng mga planeta na nag-oorbit sa bituin ng pitong planeta, kabilang ang hindi bababa sa dalawang planeta, at posibleng lahat ng mga planeta, sa loob ng lugar na madaling matutugunan.[15][16]

Galley

  • TRAPPIST-1 is a smaller (11% the size), fainter and redder star than the Sun.
    TRAPPIST-1 is a smaller (11% the size), fainter and redder star than the Sun.
  • TRAPPIST-1 planetary system (artist concept)[17]
    TRAPPIST-1 planetary system (artist concept)[17]
  • Planets transiting TRAPPIST-1 (artist concept)[18]
    Planets transiting TRAPPIST-1 (artist concept)[18]
  • Three planets orbiting TRAPPIST-1 (artist concept).
    Three planets orbiting TRAPPIST-1 (artist concept).
  • TRAPPIST-1c view (artist concept).
    TRAPPIST-1c view (artist concept).
  • TRAPPIST-1 planetary system (artist concept).
    TRAPPIST-1 planetary system (artist concept).
  • Ssc2017-01g Sm
    TRAPPIST-1 system compared to the solar system; all seven planets of TRAPPIST-1 could fit inside the orbit of Mercury.[19]
  • Drops in brightness (astronomical transits) of TRAPPIST-1 over 20 days (September/October, 2016; Spitzer Space Telescope and others) due to the seven planets (noted on the bottom) blocking the star's light.
    Drops in brightness (astronomical transits) of TRAPPIST-1 over 20 days (September/October, 2016; Spitzer Space Telescope and others) due to the seven planets (noted on the bottom) blocking the star's light.
  • Dimming of TRAPPIST-1 due to its seven known planets - large planets, more dimming; distant ones, longer (Spitzer Space Telescope).
    Dimming of TRAPPIST-1 due to its seven known planets - large planets, more dimming; distant ones, longer (Spitzer Space Telescope).

Magbasa nang higit pa

Padron:Tham khảo

  • Thomas Levenson (ngày 2 tháng 5 năm 2016). "Astronomers Have Found Planets in the Habitable Zone of a Nearby Star". The Atlantic. Nakuha noong ngày 31 tháng 7 năm 2016. {{cite web}}: Check date values in: |accessdate= at |date= ()

Sanggunian

  1. ↑ Padron:Site web
  2. ↑ 2.0 2.1 Cutri, R.M.; Skrutskie, M.F.; Van Dyk, S.; Beichman, C.A.; Carpenter, J.M.; Chester, T.; Cambresy, L.; Evans, T.; Fowler, J.; Gizis, J.; Howard, E.; Huchra, J.; Jarrett, T.; Kopan, E.L.; Kirkpatrick, J.D.; Light, R.M.; Marsh, K.A.; McCallon, H.; Schneider, S.; Stiening, R.; Sykes, M.; Weinberg, M.; Wheaton, W.A.; Wheelock, S.; Zacarias, N. (June 2003). "2MASS All Sky Catalog of point sources". VizieR Online Data Catalog. 2246. European Southern Observatory with data provided by the SAO/NASA Astrophysics Data System. Bibcode:2003yCat.2246....0C.
  3. ↑ Costa, E.; Mendez, R.A.; Jao, W.-C.; Henry, T.J.; Subasavage, J.P.; Ianna, P.A. (ngày 4 tháng 8 năm 2006). "The Solar Neighborhood. XVI. Parallaxes from CTIOPI: Final Results from the 1.5 m Telescope Program" (PDF). The Astronomical Journal. 132 (3). The American Astronomical Society: 1234. Bibcode:2006AJ....132.1234C. doi:10.1086/505706. {{cite journal}}: Check date values in: |date= ()
  4. ↑ 4.0 4.1 Gillon, M.; Jehin, E.; Lederer, S. M.; Delrez, L.; De Wit, J.; Burdanov, A.; Van Grootel, V.; Burgasser, A. J.; Triaud, A. H. M. J.; Opitom, C.; Demory, B.-O.; Sahu, D. K.; Bardalez Gagliuffi, D.; Magain, P.; Queloz, D. (2016). "Temperate Earth-sized planets transiting a nearby ultracool dwarf star" (PDF). Nature. 533 (7602): 221–224. arXiv:1605.07211. Bibcode:2016Natur.533..221G. doi:10.1038/nature17448. PMID 27135924.
  5. ↑ Viti, Serena; Jones,, Hugh R. A. (November 1999). "Gravity dependence at the bottom of the main sequence". Astronomy and Astrophysics. 351: 1028–1035. Bibcode:1999A&A...351.1028V. Nakuha noong ngày 6 tháng 5 năm 2016. {{cite journal}}: Check date values in: |accessdate= ()CS1 maint: extra punctuation (link)
  6. ↑ Padron:Chú thích web
  7. ↑ 7.0 7.1 Padron:Site web
  8. ↑ {cite journal |last=Chang |first=Kenneth |title=7 Earth-Size Planets Identified in Orbit Around a Dwarf Star |url=https://www.nytimes.com/2017/02/22/science/trappist-1-exoplanets-nasa.html |date=Pebrero 25, 2017 |work=New York Times |accessdate=Pebrero 22, 2017 }}
  9. ↑ Witze, A. (Pebraro 22, 2017). "These seven alien worlds could help explain how planets form". Nature. doi:10.1038/nature.2017.21512. {{cite journal}}: Check date values in: |date= ()
  10. ↑ Padron:Chú thích web
  11. ↑ Padron:Site web
  12. ↑ 12.0 12.1 Sample, Ian. "Could these newly-discovered planets orbiting an ultracool dwarf host life?". The Guardian.
  13. ↑ "Three New Planets Are the Best Bets for Life". Popular Mechanics.
  14. ↑ Gillon, Michaël; Jehin, Emmanuël; Lederer, Susan M.; Delrez, Laetitia; De Wit, Julien; Burdanov, Artem; Van Grootel, Valérie; Burgasser, Adam J.; Triaud, Amaury H. M. J.; Opitom, Cyrielle; Demory, Brice-Olivier; Sahu, Devendra K.; Bardalez Gagliuffi, Daniella; Magain, Pierre; Queloz, Didier (2016). "Temperate Earth-sized planets transiting a nearby ultracool dwarf star". Nature. 533 (7602): 221–224. doi:10.1038/nature17448.
  15. ↑ Padron:Site web
  16. ↑ "NASA telescope reveals largest batch of Earth-size, habitable-zone planets around single star". Exoplanet Exploration: Planets Beyond our Solar System (Pahayag sa midya). Nakuha noong Pebrero 22, 2017.
  17. ↑ Padron:Site web
  18. ↑ "Artist's view of planets transiting red dwarf star in TRAPPIST-1 system". www.spacetelescope.org. Inarkibo mula sa orihinal noong 2018-12-26. Nakuha noong 2019-06-18. {{cite web}}: Text "accessdate" ignored ()
  19. ↑ Shostak, Seth. "This Weird Planetary System Seems Like Something From Science Fiction". NBC News.

Padron:TRAPPIST-1
Maling banggit (May <ref> tag na ang grupong "note", pero walang nakitang <references group="note"/> tag para rito); $2

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