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Kepler-31
Sign in to saveKepler-31 is a star in the northern constellation of Cygnus, the swan. It is orbited by three known exoplanets. It is located at the celestial coordinates: Right Ascension , Declination . With an apparent visual magnitude of 14.0, this star is too faint to be seen with the naked eye.
In the Vinony graph
Vinony's link graph records 311 inbound references to Kepler-31, and connects out to apparent magnitude, astronomical coordinate system and list of stars in Cygnus.
Vinony files it under Cygnus (constellation), G-type main-sequence stars and Kepler objects of interest.
Vinony links it to 7 Wikipedia language editions.
Astronomical data · SIMBAD
- Object type
- Er*
- Distance
- 5,424 light-years
- Redshift
- z = 0.00003585211163881219
- Coordinates
- RA 294.0230° · Dec 45.8531°
via SIMBAD · CDS Strasbourg
Wikidata facts
- Instance of
- eruptive variable star
- Constellation
- Cygnus
- Distance from Earth
- 1663.06
- Diameter
- 2200000
- Radius
- 1.163
- Mass
- 1.185
- Variable-star type
- rotating variable star
Show 17 more facts
- metallicity
- 0.12
- Commons category
- Kepler-31
- catalog code
- KOI-935
- effective temperature
- 6505
- parallax
- 0.6013
- stellar rotational velocity
- 7.41
- apparent magnitude
- 15.288
- surface gravity
- 22000
- epoch
- J2000.0
- luminosity
- 1.8429646
- discoverer or inventor
- 2MASS
- time of discovery or invention
- 2003-00-00
- right ascension component of proper motion
- -1.007
- declination component of proper motion
- -7.439
- right ascension
- 294.02302910322
- declination
- 45.85308552241
- radial velocity
- 10.748
Sources (1)
via Wikidata · CC0
~1 min read
Encyclopedic overview
2 sectionsContents
- Planetary system
- References
Kepler-31 is a star in the northern constellation of Cygnus, the swan. It is orbited by three known exoplanets. It is located at the celestial coordinates: Right Ascension , Declination . With an apparent visual magnitude of 14.0, this star is too faint to be seen with the naked eye.
==Planetary system== The three gas giant planets orbiting Kepler-31 were discovered in early 2011, albeit with large false alarm probability, and were confirmed in 2012. The planets form a resonant chain, with orbital periods ratio 1:2:4, although 20% probability exists that these period ratios may be coincidental.
Excerpted from Wikipedia’s “Kepler-31” article, available under the CC BY-SA 4.0 licence.