Q17434591
Sign in to saveAlso known as Kepler-93 b
Kepler-93b (KOI-69b) is a hot, dense transiting Super-Earth exoplanet located approximately away in the constellation of Lyra, orbiting the G-type star Kepler-93. Its discovery was announced in February 2014 by American astronomer Geoffrey Marcy and his team. In July 2014, its radius was determined with a mere 1.3% margin of error, the most precise measurement ever made for an exoplanet's radius at the time.
Wikidata facts
- Diameter
- 20200
- Radius
- 1.629
- Mass
- 4.02
- Orbital period
- 4.72674
Show 12 more facts
- orbital eccentricity
- 0.0
- right ascension
- 291.41828587196630
- declination
- 38.67233648450833
- time of discovery or invention
- 2014-02-00
- semi-major axis of an orbit
- 0.053
- catalog code
- TIC 137151335b
- temperature
- 1037.0
- M sin i
- 0.01131048505
- orbital inclination
- 89.18
- right ascension component of proper motion
- -28.726
- declination component of proper motion
- -5.588
- parallax
- 10.3974
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~3 min read
Article
5 sectionsContents
- Physical properties
- Host star
- See also
- Footnotes
- References
Kepler-93b (KOI-69b) is a hot, dense transiting Super-Earth exoplanet located approximately away in the constellation of Lyra, orbiting the G-type star Kepler-93. Its discovery was announced in February 2014 by American astronomer Geoffrey Marcy and his team. In July 2014, its radius was determined with a mere 1.3% margin of error, the most precise measurement ever made for an exoplanet's radius at the time.
== Physical properties == The planet has a radius of around 1.478 (9,416 km), with an uncertainty of just 0.019 (121 km), making it the most precisely measured exoplanet ever in terms of radius as of July 2014. The planet is substantially denser than Earth at thanks to its high mass of roughly 4 , consistent with a rocky composition of iron and magnesium silicate. In 2023, the planet's mass was revised upward to 4.66 , placing its density at 7.93 g/cm3, roughly the same as the metal iron ().