HAT-P-7
Sign in to saveAlso known as GSC 03547-01402, BD+47 2846, PPM 58383, KIC 10666592, TOI-1265, TIC 424865156, SPOCS 4118, KOI-2
HAT-P-7 is a triple star system located about 1,088 light-years away in the constellation Cygnus. The apparent magnitude of this star is 10.5, which means it is not visible to the naked eye but can be seen with a small telescope on a clear dark night.
Wikidata facts
- Distance from Earth
- 320
- Diameter
- 2500000
- Radius
- 2
- Mass
- 1.51
- Image
- HAT-P-7b planet.jpg
Show 15 more facts
- spectral class
- F7IV
- catalog code
- KOI-2
- effective temperature
- 6259
- radial velocity
- -10.6
- luminosity
- 6.1830697
- apparent magnitude
- 10.367682
- parallax
- 2.9991
- metallicity
- 0.01
- stellar rotational velocity
- 0.1
- surface gravity
- 5200
- right ascension component of proper motion
- -18.325
- declination component of proper motion
- 8.851
- right ascension
- 292.24730784422
- declination
- 47.96950472439
- age estimated by a dating method
- 2.07
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Article
6 sectionsContents
- Stellar system
- Planetary system
- See also
- References
- Further reading
- External links
HAT-P-7 is a triple star system located about 1,088 light-years away in the constellation Cygnus. The apparent magnitude of this star is 10.5, which means it is not visible to the naked eye but can be seen with a small telescope on a clear dark night.
==Stellar system== The primary component of the HAT-P-7 system is an F-type main-sequence star with around 1.35 times the Sun's mass and twice the Sun's radius, hosting one known planet. The secondary is a red dwarf located 730 astronomical units away from the primary, with a spectral type of M5.5V and a mass of . The tertiary is also a red dwarf with a mass of at least ; it is in a highly-eccentric orbit with a semi-major axis of 32 AU.
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