FY 1214
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Star GJ 1214 |
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| GJ 1214 with his companion GJ 1214 b (artist's impression) | |||||||
| AladinLite | |||||||
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Observation dates equinox : J2000.0 , epoch : J2000.0 |
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| Constellation | Snake bearer | ||||||
| Right ascension | 17 h 15 m 18.93 s | ||||||
| declination | + 04 ° 57 ′ 50.1 ″ | ||||||
| Apparent brightness | 14.71 ± 0.01 mag | ||||||
| Typing | |||||||
| Known exoplanets | 1 | ||||||
| B − V color index | +1.73 | ||||||
| R − I index | +3.29 | ||||||
| Spectral class | M4.5 V | ||||||
| Variable star type | BY | ||||||
| Astrometry | |||||||
| parallax | (68.27 ± 0.17) mas | ||||||
| distance | (47.75 ± 0.12) ly (14.47 ± 0.04) pc |
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| Proper movement | |||||||
| Rec. Share: | (580.45 ± 0.48) mas / a | ||||||
| Dec. portion: | (-749.59 ± 0.22) mas / a | ||||||
| Physical Properties | |||||||
| Dimensions | (0.150 ± 0.011) M ☉ | ||||||
| radius | (0.216 ± 0.012) R ☉ | ||||||
| Effective temperature | (3026 ± 150) K. | ||||||
| Metallicity [Fe / H] | (0.39 ± 0.15) | ||||||
| Age | (6 ± 3) bill. A | ||||||
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Other names and catalog entries |
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1214 GJ (Gliese 1214) is a 42 light-years from the Earth remote red dwarf in the constellation snake carrier . It has around 15% of the solar mass and is far less luminous than this. The effective temperature of GJ 1214 is about 3000 K . GJ 1214 b , a so-called super earth, orbits it at a distance of about 0.014 AU .
Web links
Commons : GJ 1214 b - Collection of images, videos and audio files
Individual evidence
- ↑ a b c d e G 139-21. In: SIMBAD . Center de Données astronomiques de Strasbourg , accessed December 7, 2018 .
- ↑ a b c GJ 1214. In: VSX. AAVSO, accessed December 7, 2018 .
- ↑ a b c d e GJ 1214 b. In: Extrasolar Planets Encyclopaedia . Retrieved December 7, 2018 .
- ↑ http://www.scienceblogs.de/astrodicticum-simplex/2009/12/die-feuchte-supererde-von-gj1214.php