Comparing TRAPPIST-1 to the Solar System · NASA · NASA — public domain
Astronomical data · SIMBAD
- Object type
- Pl
- Distance
- 2,061 light-years
- Coordinates
- RA 285.5740° · Dec 38.4009°
via SIMBAD · CDS Strasbourg
Key facts
- Planet.name
- Kepler-9b
- Planet.image
- Exoplanet Comparison Kepler-9 b.png
- Planet.caption
- Size comparison of Kepler-9b (left) with Jupiter (right)
- Planet.discoverer
- Kepler Mission team
- Planet.discovery_site
- Kepler space telescope
- Planet.discovered
- 26 August 2010
- Planet.discovery_method
- Transit
- Planet.apsis
- astron
- Planet.eccentricity
- 0
- Planet.period
- 19.24 d
- Planet.inclination
- 88.55
- Planet.star
- Kepler-9
- Planet.mean_radius
- 0.842 ± 0.069
- Planet.density
- g cm−3
via Wikipedia infobox
Exoplanet data
- Host star
- Kepler-9
- Discovered
- 2010
- Discovered by
- Kepler
- Orbital period
- 19.24 days
- Radius
- 8.29 × Earth
- Mass
- 43.40 × Earth
- Equilibrium temp
- 661 K
- Distance
- 628.26 pc
via NASA Exoplanet Archive
Wikidata facts
- Diameter
- 114000
- Radius
- 0.74
- Mass
- 0.13655
- Orbital period
- 19.23891
- Image
- Kepler-9b, Jupiter size comparison.jpg
Show 13 more facts
- catalog code
- Kepler-9b
- semi-major axis of an orbit
- 0.143
- time of discovery or invention
- 2010-10-00
- Commons category
- Kepler-9 b
- right ascension
- 285.57397671045170
- declination
- 38.40088256864889
- argument of periapsis
- 357
- orbital eccentricity
- 0
- orbital inclination
- 88.982
- right ascension component of proper motion
- 2.491
- declination component of proper motion
- -14.713
- parallax
- 1.5629
- M sin i
- 0.08149941185
Sources (1)
via Wikidata · CC0
~3 min read
Article
5 sectionsContents
- Nomenclature and history
- Characteristics
- Other planets in the Kepler-9 system
- References
- External links
__NOTOC__
Kepler-9b is one of the first planets discovered outside the Solar System (exoplanets) by NASA's Kepler Mission. It revolves around the star Kepler-9 within the constellation Lyra. Kepler-9b is the largest of three planets detected in the Kepler system by transit method; its mass is roughly half that of the planet Saturn, and it is the largest planet in its system. Kepler-9b and Kepler-9c display a phenomenon called orbital resonance, in which gravitational pull from each planet alters and stabilizes the orbit of the other. The planet's discovery was announced on August 26, 2010.