Q4042140
Sign in to saveKepler-25 is a star in the northern constellation of Lyra. It is slightly larger and more massive than the Sun, with a luminosity 2 times that of the Sun. With an apparent visual magnitude of 10.6, this star is too faint to be seen with the naked eye. thumb|
Astronomical data · SIMBAD
- Object type
- Em*
- Spectral type
- F6
- Distance
- 787 light-years
- Redshift
- z = -0.000028542672284026516
- Coordinates
- RA 286.6384° · Dec 39.4879°
via SIMBAD · CDS Strasbourg
Wikidata facts
- Instance of
- eruptive variable star
- Constellation
- Lyra
- Distance from Earth
- 244.96
- Diameter
- 1820000
- Radius
- 1.477
- Mass
- 1.19
- Variable-star type
- rotating variable star
- Image
- Kepler-25.jpg
Show 19 more facts
- Commons category
- Kepler-25
- catalog code
- KIC 4349452
- effective temperature
- 6212
- parallax
- 4.1456
- stellar rotational velocity
- 11.48
- radial velocity
- -9
- apparent magnitude
- 10.622
- epoch
- J2000.0
- metallicity
- 0.06
- surface gravity
- 54000
- spectral class
- F8IV-V
- discoverer or inventor
- Hipparcos
- time of discovery or invention
- 1997-00-00
- luminosity
- 2.4577746
- right ascension component of proper motion
- -0.303
- declination component of proper motion
- 6.109
- right ascension
- 286.63839223113996
- declination
- 39.48787742364
- age estimated by a dating method
- 2.75
Sources (1)
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Encyclopedic overview
2 sectionsContents
- Planetary system
- References
Kepler-25 is a star in the northern constellation of Lyra. It is slightly larger and more massive than the Sun, with a luminosity 2 times that of the Sun. With an apparent visual magnitude of 10.6, this star is too faint to be seen with the naked eye. thumb|
==Planetary system== In 2011, two candidate planets were found transiting this star by the Kepler space telescope. These planets are very close to yet not lie in the 1:2 orbital resonance to each other, indicating the absence of other planetary objects in the inner part of the planetary systems. These planets were confirmed through transit-timing variation method. A third planet was discovered through follow-up radial velocity measurements and was confirmed in January 2014.
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