KOI-94
Sign in to saveKepler-89 is a star with four confirmed planets. Kepler-89 is a possible wide binary star.
Wikidata facts
- Distance from Earth
- 477.052
- Radius
- 1.4286
- Mass
- 1.183
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- stellar rotational velocity
- 6.9
- effective temperature
- 6184
- catalog code
- TOI-4581
- parallax
- 2.1069
- apparent magnitude
- 12.180761
- metallicity
- 0.11
- surface gravity
- 17000
- luminosity
- 2.2929468
- right ascension component of proper motion
- 2.063
- declination component of proper motion
- 1.337
- right ascension
- 297.33305966866
- declination
- 41.89111278276
- radial velocity
- -21.9
- age estimated by a dating method
- 3.31
- spectral class
- F8IV-V
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Article
2 sectionsContents
- Planetary system
- References
Kepler-89 is a star with four confirmed planets. Kepler-89 is a possible wide binary star.
==Planetary system== The discovery of four planets orbiting the star was announced October 2012 by analyzing data gathered by Kepler space telescope. Follow-up radial velocity measurements confirmed the existence of Kepler-89d, indicating that Kepler-89d is slightly larger and more massive than Saturn. In October 2013, other three planets were confirmed with Kepler-89c and Kepler-89e getting reasonable mass constraints. Transit-timing variations of the outermost planet suggest that additional planets or minor bodies are present in the system.
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