Jump to content

Kepler-452

From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by 24.79.40.162 (talk) at 22:59, 23 July 2015 (Plenty of notes with basic formulas, Temperature is under Luminosity, T=(L/R2)^0.25). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Kepler-452
Characteristics
Spectral type G2
Observation data
Epoch J2000      Equinox J2000
Constellation Cygnus
Right ascension 19h 44m 0.9s
Declination +44° 16′ 39.2″
Apparent magnitude (V) 13.426
Astrometry
Distance1400 ly
(430 pc)
Details
Mass1.04 M
Radius1.1 R
Luminosity1.2 L
Temperature5905.0 K
AgeGyr
Other designations
KOI-07016, KIC-8311864, 2MASS 19440088+4416392

Kepler-452 is a G-class star located about 1400 light-years away from Earth in the constellation of Cygnus.[1] It has a similar temperature as the Sun, but is 20 percent brighter, four percent more massive and has a 10 percent larger diameter.[2][3] It is also 1.5 billion years older than the Sun, having an age of about six billion years.

The exoplanet Kepler-452b, orbiting in the habitable zone of Kepler-452, was discovered in July 2015 by the Kepler spacecraft.

References

  1. ^ Witze, Alexandra (23 July 2015). "NASA spies Earth-sized exoplanet orbiting Sun-like star". Nature. Retrieved 23 July 2015.
  2. ^ Chou, Felicia; Johnson, Michelle (23 July 2015). "NASA's Kepler Mission Discovers Bigger, Older Cousin to Earth". NASA. Retrieved 23 July 2015.
  3. ^ Rincon, Paul (23 July 2015). "'Earth 2.0' found in Nasa Kepler telescope haul". BBC. Retrieved 23 July 2015.