Q16528559
Sign in to saveKepler-13 or KOI-13 is a stellar triple star system consisting of Kepler-13A, around which an orbiting hot Jupiter exoplanet was discovered with the Kepler space telescope in 2011, and Kepler-13B a common proper motion companion star which has an additional star orbiting it.
Astronomical data · SIMBAD
- Object type
- **
- Spectral type
- kA2hA5mA7(IV)m:
- Redshift
- z = -0.000030095634466875687
- Coordinates
- RA 286.9713° · Dec 46.8683°
via SIMBAD · CDS Strasbourg
Wikidata facts
- Constellation
- Lyra
- Child body
- Kepler-13 Ab
- Variable-star type
- eclipsing binary star
Show 13 more facts
- right ascension
- 286.9712706000
- declination
- 46.8683345000
- effective temperature
- 7656
- apparent magnitude
- 9.91
- epoch
- J2000.0
- catalog code
- Kepler-13
- surface gravity
- 14150
- right ascension component of proper motion
- -4.7
- declination component of proper motion
- -15.2
- Commons category
- Kepler-13
- spectral class
- A1IV
- radial velocity
- -9.02258
- stellar rotational velocity
- 80.816
via Wikidata · CC0
~2 min read
Encyclopedic overview
3 sectionsContents
- Stellar system
- Planetary system
- References
Kepler-13 or KOI-13 is a stellar triple star system consisting of Kepler-13A, around which an orbiting hot Jupiter exoplanet was discovered with the Kepler space telescope in 2011, and Kepler-13B a common proper motion companion star which has an additional star orbiting it.
==Stellar system== The multiple nature of the system was discovered in 1904 by Robert Grant Aitken at Lick Observatory. He measured a separation between the A and B components of approximately one arc second and position angle of 281.3° with the 36" James Lick telescope. The position of the two visual components of the system relative to each other has remained constant since 1904. Radial velocity measurements taken with the SOPHIE échelle spectrograph at the Haute-Provence Observatory revealed an additional companion orbiting Kepler-13B. This companion has a mass of between 0.4 and 1 times that of the Sun and orbits with a period of 65.831 days with an eccentricity of 0.52
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