TRAPPIST-1
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23h 06m 29.383s, â05° 02â² 28.59â³
 áá¯á¶á¡ááœáẠTrappist-1 ááááºáá±áá¬á | |
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á±á¬áá·áºááŒáá·áºáá±áᬠEpoch       Equinox | |
|---|---|
| ááŒááºá á¯áááºáž | áá¯á¶ ááá¹áááºáá¬áᬠ|
| áá¬ááẠáááá·áºáááºážááŸá¯ | 23° 06â²Â 29.283â³[á] |
| ááááºážá á±á¬ááºážááŸá¯ | â05° 02â²Â 28.59â³[á] |
| áááá á¡ááœááºá¡á á¬ážÂ (V) | 18.80 |
| áá¯ááºááá¹áá | |
| á áá®áᬠá¡áá»áá¯ážá¡á á¬áž | M8V[á] M8.2V[note á] |
| VâR á¡áá±á¬ááºááœááºážááááºáž | 2.33 |
| RâI á¡áá±á¬ááºááœááºážááááºáž | 2.47 |
| ááá¹ááá¹ááá±á | |
| áááá¯ááœá¬á¡á¬áž á¡áá»áẠ(Rv) | â56.3 km/s |
| ááŒá±á¬ááºážáá² áááºáá±áᬠ(Ï) | 82.58 mas |
| á¡ááœá¬á¡áá±áž | 39.5 ± 1.3 ly (12.1 ± 0.4 pc) |
| áááá á¡ááœááºá¡á á¬ážÂ (MV) | 18.4 ± 0.1 |
| á¡áá±ážá ááẠ| |
| ááŒááºáᯠ| 0.08 ± 0.009 Mâ |
| ááŒááºáᯠ| 83.8048 ± 9.428 MJup |
| á¡áá»ááºážááẠ| 0.114 ± 0.006 Râ |
| áá±á¬ááºáááŸá¯ (bolometric) | 0.000525±0.000036[á] Lâ |
| áá±á¬ááºáááŸá¯ (visual, LV) | 0.00000373[note á] Lâ |
| áá»ááºááŸá¬ááŒáẠááŒááºááœá²á¡á¬áž(log g) | ~5.227[note á][á ] cgs |
| áááºáá±á¬ááºááá·áº á¡áá°áá»ááẠ| 2550 ± 55 K |
| ááá¹áá¯ááŒáœááºáááŸá¯ | 0.04 ± 0.08 |
| á áá®áᬠááŸáá·áºáááºááŸá¯ | 1.40 ± 0.05 days |
| ááŸáá·áºáááºá¡áá»áẠ(v sin i) | 6 ± 2 km/s |
| á áá®áᬠáááºáááºáž | > á Gyr |
| ááŒáẠá á¬áááºáž | |
2MASS J23062928-0502285, 2MASSI J2306292-050227, 2MASSW J2306292-050227, 2MUDC 12171 | |
| áááºááœááºáž áá±áᬠ| |
| SIMBAD | data |
TRAPPIST-1 ( 2MASS J23062928-0502285)[á]ááẠá¡ááºááááºá¡á±ážááŒáá±á¬ ááŒááºáᯠááŒá áºááŒá®áž[á][á] ááá¹áá¬ááŒá±á០á¡áááºážááŸá Ạáá (áá Parsec) á¡ááœá¬ áá¯á¶ ááá¹áááºáá¬áá¬á áááºááŸááááºá[á]
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[ááŒááºáááºáááº]áááá áá±áá±á¬áºáá«áá®áááœáẠáááºážááŒááºáááŒáá¯ááºá áá áºá á¡áá°áá»áááºáá»áŸááá±á¬ ááŒáá¯áẠá á ááºážááᯠááŸá¬ááœá±ááœá±á·ááŸááá²á·áááºáᯠááŒá±áá¬áá²á·áááºá TRAPPIST-1 ááŒááºá áá áºááŸá b c e f g áá°áá±á¬ááŒáá¯ááºááá¯á·ááẠááá¹áá¬ááŒá±ááŸáá·áºáá°ááŒá®áž d h ááá¯á·ááẠááá¹áá¬ááŸáá·áº á¡ááºá¹áá«ááŒáá¯ááºá¡ááœááºá¡á á¬áž ááŸááááºá[áá] áá¯á¶ážáá¯ááẠ(e, f ááŸáá·áº g) ááá¯ážááºáá®áá±á¬áá¯ááºá¡ááœááºáž ááŸáá·áºáááºáá±ááŒáááºá[áá][áá ][áá][áá] á¡ááœááºážááá¯ááºáž ááŒáá¯áẠá áá¯á¶ážá á á¯á á¯áá±á«ááºážááá¬áááẠTRAPPIST-1 ááŒááºá á.áá áá¬ááá¯ááºááŸá¯ááºážááŸááááºá[áá]
| á¡áá±á¬áº (ááŒááºá០á¡á á®á ááºá¡ááá¯ááºáž) |
áá¯ááẠ| áá®áá®ážáá±áá»á¬ áááºááá¯áž (AU) |
áááºáááºážáá¬á (áááº) |
áááºáááºážáááá¯áá»ááŸá¯ | áááá·áºáááºážááŸá¯ | á¡áá»ááºážááẠ|
|---|---|---|---|---|---|---|
| b | 0.85±0.72 Mâ | 0.01111 | 1.51087081 ± 0.00000060 | < 0.081 | 89.65 ± 0.25° | 1.086 ± 0.035 Râ |
| c | 1.38±0.61 Mâ | 0.01522 | 2.4218233 ± 0.0000017 | < 0.083 | 89.67 ± 0.17° | 1.056 ± 0.035 Râ |
| d | 0.41±0.27 Mâ | 0.021 ± 0.006 | 4.049610 ± 0.000063 | < 0.070 | 89.75 ± 0.16° | 0.772 ± 0.030 Râ |
| e | 0.62±0.58 Mâ | 0.028 | 6.099615 ± 0.000011 | < 0.085 | 89.86 ± 0.11° | 0.918 ± 0.039 Râ |
| f | 0.68±0.18 Mâ | 0.037 | 9.206690 ± 0.000015 | < 0.063 | 89.680 ± 0.034° | 1.045 ± 0.038 Râ |
| g | 1.34±0.88 Mâ | 0.045 | 12.35294 ± 0.00012 | < 0.061 | 89.710 ± 0.025° | 1.127 ± 0.041 Râ |
| h | áááá (likely <1) Mâ | 0.063±0.027 | 20±9 | áááá | 89.80 ± 0.07° | 0.755 ± 0.034 Râ |
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TRAPPIST-1 á áá áºá¡ááœááºáž ááŒáá¯ááºáá»á¬áž ááŒááºáááºážááœá¬ážáá¯á¶á¡á¬áž á¡áá¯ááá¬ááŸááºá áá¯á¶áá±á¬áºáá»ááº[áá]
áá±ááŸáá·áº TRAPPIST-1 á¡á¬áž ááŸááºááŒáá¬ážáá¯á¶
TRAPPIST-1 á ááŒáá¯áẠá á ááºážá¡á¬áž á¡áá¯ááá¬ááŸááºá០áá¯á¶áá±á¬áºáá¬ážáá¯á¶
TRAPPIST-1c ááŒáá¯ááºá០ááŒááºááœááºážá¡á¬áž á áááºáá°ážáá¯á¶áá±á¬áºáá»ááº- á€áá®áá®ááá¯ááẠTRAPPIST-1 á¡á¬áž ááŒáá¯ááºáá»á¬áž ááŸáá·áºáááºáá±áá¯á¶ááᯠá áááºáá°ážáá¯á¶áá±á¬áºáá¬ážááŒááºáž ááŒá áºáááºá
TRAPPIST-1 á áá áºááœáẠáááºááá¯á·áááºáá¯á¶ááŸááááºááᯠNASA-JPL/Caltech á á¡áá¯ááá¬ááŸááºáá»á¬ážá áá¯á¶áá±á¬áºáá»ááºááŒá áºáááºá
ááááááá¯á·á áá±á ááŒáá á¬ááŒáá·áº ááŸáá¯ááºážááŸááºááŒáá¬ážáá¯á¶á TRAPPIST-1 á ááŒáá¯áẠá á ááºážáá¯á¶ážááẠáá¬áá»á°áá®ááŒáá¯ááºáááºáááºážáá²ááœáẠááá·áºáá¬ážááá¯ááºáááºá
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[ááŒááºáááºáááº]- â ááá¯ááá¯áááºááá Ạáá±á¬ááºá áẠá¡áá»áá¯ážá¡á á¬áž ááá·áºááŸááºážááœááºáá»ááºááŸá¯á¡áá±á«áº á¡ááŒá±áá¶áá¬ážáááº
- â Taking the absolute visual magnitude of TRAPPIST-1 and the absolute visual magnitude of the Sun , the visual luminosity can be calculated by
- â The surface gravity is calculated directly from Newton's law of universal gravitation, which gives the formula where M is the mass of the object, r is its radius, and G is the gravitational constant.
ááá¯ážáá¬áž
[ááŒááºáááºáááº]- â TRAPPIST-1bá Open Exoplanet Catalogueá 26 December 2018 ááœáẠáá°áááºážá¡á¬áž áá±á¬áºááœááºážáááºááŒá®ážá 23 February 2017 ááœáẠááŒááºá á áºááŒá®ážá
- 1 2 "2MASS All Sky Catalog of point sources" (June 2003). VizieR Online Data Catalog 2246. European Southern Observatory with data provided by the Smithsonian Astrophysical Observatory/NASA Astrophysics Data System. Bibcode:Â 2003yCat.2246....0C.
- â "The Solar Neighborhood. XVI. Parallaxes from CTIOPI: Final Results from the 1.5 m Telescope Program" (PDF) (August 4, 2006). The Astronomical Journal 132: 1234. The American Astronomical Society. doi:. Bibcode:Â 2006AJ....132.1234C.
- 1 2 3 4 5 Temperate Earth-sized planets transiting a nearby ultracool dwarf star] (pdf)á European Southern Observatory
- â Viti, Serena (November 1999). "Gravity dependence at the bottom of the main sequence". Astronomy and Astrophysics 351: 1028â1035. Bibcode:Â 1999A&A...351.1028V.
- â 2MASS J23062928-0502285á
- 1 2 Three Potentially Habitable Worlds Found Around Nearby Ultracool Dwarf Star - Currently the best place to search for life beyond the Solar System (in en-GB)á 2016-05-02 ááœáẠááŒááºá á áºááŒá®ážá
- â Changá Kennethá "7 Earth-Size Planets Identified in Orbit Around a Dwarf Star"á New York Timesá 22 February 2017á 22 February 2017 ááœáẠááŒááºá á áºááŒá®ážá
- â AGO - Department of Astrophysics, Geophysics and Oceanographyá
- 1 2 3 Could these newly-discovered planets orbiting an ultracool dwarf host life?á The Guardian (2 May 2016)á
- â Three New Planets Are the Best Bets for Lifeá Popular Mechanics (2016-05-02)á 2 May 2016 ááœáẠááŒááºá á áºááŒá®ážá
- â "Temperate Earth-sized planets transiting a nearby ultracool dwarf star" (2016). Nature 533 (7602): 221â224. doi:.
- â Temperate Earth-Sized Planets Found in Extraordinarily Rich Planetary System TRAPPIST-1á SpaceRef (22 February 2017)á 11 February 2017 ááœáẠááŒááºá á áºááŒá®ážá[ááá·áºááºáá±]
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ááŒááºáááá·áºáá»á¬áž
[ááŒááºáááºáááº]- NASA Discovers 7 Planets Orbiting TRAPPIST 1
- TRAPPIST-1, Planetary system website.
- ESOcast 83: Ultracool dwarf star with planets (video) 11 June 2016 á áá±á¬áºááœááºážááŒááºááŒáá·áºá ááºááœáẠáá±á¬áºááœááºážáááºááŒá®áž .
- NASA Briefing on the Discovery of TRAPPIST-1's 7 Planets
