Kepler-27: Difference between revisions
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| class = G5<ref name=epe>{{citation |
| class = G5<ref name=epe>{{citation |
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|first1=Jean |
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|last1=Schneider |
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|title=Star: Kepler-31 |
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|work=[[Extrasolar Planets Encyclopaedia]] |
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|publisher=Paris Observatory |
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|url=http://exoplanet.eu/star.php?st=Kepler-31 |
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|accessdate=2011-12-06 |
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|archiveurl=https://web.archive.org/web/20120426071816/http://exoplanet.eu/star.php?st=Kepler-31 |
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|archivedate=2012-04-26 |
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| appmag_1_passband = <!-- Passband for first apparent magnitude (e.g., H, J, K, etc.) --> |
| appmag_1_passband = <!-- Passband for first apparent magnitude (e.g., H, J, K, etc.) --> |
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| appmag_1 = <!-- Value of first apparent magnitude --> |
| appmag_1 = <!-- Value of first apparent magnitude --> |
Revision as of 16:26, 4 May 2017
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Cygnus[1] |
Right ascension | 19h 28m 56.825s |
Declination | +41° 05′ 09.15″ |
Apparent magnitude (V) | 15.855[2] |
Characteristics | |
Spectral type | G5[3] |
Astrometry | |
Distance | 2638[3] ly (809 pc) |
Details | |
Mass | 0.65[2] M☉ |
Radius | [2] R☉ |
Luminosity | 0.59[2] L☉ |
Temperature | 5400[2] K |
Metallicity [Fe/H] | 0.41[2] dex |
Rotational velocity (v sin i) | 0.6[2] km/s |
Other designations | |
Database references | |
SIMBAD | data |
KIC | data |
Kepler-2 is a star in the northern constellation of Cygnus, the swan, that is orbited by a planet found to be unequivocally within the star's habitable zone. It is located at the celestial coordinates: Right Ascension 19h 28m 56.825s, Declination +41° 05′ 09.15″.[4] With an apparent visual magnitude of 15.855,[2] this star is too faint to be seen with the naked eye.
Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
---|---|---|---|---|---|---|
b | 9.11 MJ | 0.118 | 15.3348 | — | — | — |
c | 13.8 MJ | 0.191 | 31.3309 | — | — | 4.1 R🜨 |
References
- ^ "Cygnus – constellation boundary", The Constellations, International Astronomical Union, retrieved 2011-12-15
- ^ a b c d e f g h Kepler-31b, NASA Ames Research Center, retrieved 2011-12-06
- ^ a b c Schneider, Jean, "Star: Kepler-31", Extrasolar Planets Encyclopaedia, Paris Observatory, archived from the original on 2012-04-26, retrieved 2011-12-06
{{citation}}
: Unknown parameter|deadurl=
ignored (|url-status=
suggested) (help) - ^ "Kepler Discoveries". 2011-12-05.