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Kepler-40
Sign in to saveKepler-40, formerly known as KOI-428, is an F-type star in the constellation Cygnus. Kepler-40 is known to host at least one planet, Kepler-40b. The star is approximately 1.5 times more massive than the Sun, and is over two times its size; it was, at upon its discovery, the largest yet discovered with a transiting planet in its orbit. Kepler-40 was first noted as home to a possible transiting object by the Kepler spacecraft; the data on the system was released to the public. A team of French and Swiss scientists used follow-up data to determine the existence of the Hot Jupiter planet Kepler-40
Astronomical data · SIMBAD
- Object type
- *
- Spectral type
- F5IV
- Distance
- 7,168 light-years
- Coordinates
- RA 296.8137° · Dec 47.5266°
via SIMBAD · CDS Strasbourg
Wikidata facts
- Distance from Earth
- 2700
- Radius
- 2.13
- Mass
- 1.48
Show 13 more facts
- surface gravity
- 35500
- catalog code
- TIC 272840455
- effective temperature
- 6510
- parallax
- 0.455
- apparent magnitude
- 14.547202
- metallicity
- 0.10
- spectral class
- F5 IV
- luminosity
- 6.77782
- right ascension component of proper motion
- -1.469
- declination component of proper motion
- -6.768
- right ascension
- 296.81369762414
- declination
- 47.52657370076
- age estimated by a dating method
- 2.8
via Wikidata · CC0
~4 min read
Article
4 sectionsContents
- Observational history
- Characteristics
- Planetary system
- References
Kepler-40, formerly known as KOI-428, is an F-type star in the constellation Cygnus. Kepler-40 is known to host at least one planet, Kepler-40b. The star is approximately 1.5 times more massive than the Sun, and is over two times its size; it was, at upon its discovery, the largest yet discovered with a transiting planet in its orbit. Kepler-40 was first noted as home to a possible transiting object by the Kepler spacecraft; the data on the system was released to the public. A team of French and Swiss scientists used follow-up data to determine the existence of the Hot Jupiter planet Kepler-40b, and later had their results published in a scientific journal on January 4, 2011.
==Observational history== Kepler-40 was first targeted by the Kepler spacecraft, an Earth-trailing NASA operation that searches for planets that transit, or cross in front of, their host stars. It was labeled a Kepler Object of Interest (KOI) during the satellite's first 33.5 days of operations, which stretched from mid-May to mid-June 2009, because of the detection of a potential transit event. The data collected by Kepler's photometer was publicly released, including data on Kepler-40 and its possible transiting companion.