Kepler-452

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Star
Kepler-452
Comparison of the Kepler-452 and Kepler-186 systems with the inner solar system
Comparison of the Kepler-452 and Kepler-186 systems with the inner solar system
AladinLite
Observation
dates equinox :  J2000.0 , epoch : J2000.0
Constellation swan
Right ascension 19 h 44 m 0.89 s
declination + 44 ° 16 ′ 39.2 ″
Apparent brightness 13,426 mag
Typing
Known exoplanets 1?
Spectral class G4 V
Astrometry
parallax (1.78 ± 0.02)  mas
distance (1830 ± 20)  ly
560  pc
Proper movement 
Rec. Share: (9.97 ± 0.03)  mas / a
Dec. portion: (9.01 ± 0.04)  mas / a
Physical Properties
Dimensions 1.037   +0.054−0.047 M ☉
radius 1.11   +0.15−0.09 R ☉
Effective temperature 5757 ± 85  K
Metallicity [Fe / H] +0.21 ± 0.09
Age 6 ± 2 billion  a
Other names
and catalog entries
2MASS catalog 2MASS J19440088 + 4416392 [1]
Other names WISE J194400.89 + 441639.2, KIC 8311864, KOI-7016, Kepler-452

Kepler-452 is a yellow dwarf in the constellation Swan , which is about 1,800 light-years from the sun away. The star has a surface temperature comparable to the Sun , but is 20% brighter and has a 10% larger radius. It has the same spectral class (G2) as the sun.

The fastest man-made space probes to date, Helios 1 and 2, would take almost six million years to cover the current distance between the solar system and Kepler-452.

Planetary system

Based on the observations of the Kepler Space Telescope , the discovery of an exoplanet around Kepler-452 was announced on July 23, 2015 , which was given the designation Kepler-452b . The planet has about 1.6 times the diameter of the earth and orbits its central star within 385 earth days in its habitable zone . It is possible that Kepler-452b is a rocky planet on which liquid water could be present. The Earth Similarity Index of this satellite is 0.83. In July 2015, Kepler-452b was ranked sixth on the list of potentially habitable planets .

Web links

Commons : Kepler-452b  - Collection of Images, Videos, and Audio Files

Individual evidence

  1. ↑ a b c d KOI-7016. In: SIMBAD . Center de Données astronomiques de Strasbourg , accessed December 7, 2018 .
  2. ↑ a b c d e f Kepler-452 b. In: Extrasolar Planets Encyclopaedia . Retrieved December 7, 2018 .
  3. ↑ a b National Astronautics and Space Administration: NASA's Kepler Mission Discovers Bigger, Older Cousin to Earth. Retrieved July 24, 2015 .