Kepler-452b
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Exoplanet Kepler-452 b |
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| Size comparison between Earth and Kepler-452b (artist's impression) | |
| Constellation | swan |
| Position equinox : J2000.0 |
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| Right ascension | 19h 44m 00.89s |
| declination | + 44 ° 16 ′ 39.20 ″ |
| Orbit data | |
| Central star | Kepler-452 |
| Major semi-axis | 1.046 +0.019−0.015 AE |
| Period of circulation | 384.843 + 0.007−0.012 d |
| Further data | |
| radius | 1.63 + 0.23−0.20 R ⊕ |
| distance | 560 pc |
| history | |
| discovery | Kepler Science Team |
| Date of discovery | July 23, 2015 (announcement) |
| Catalog names | |
| KOI-7016.01, Kepler-452 b, KOI-7016 b, KIC 8311864 b, WISE J194400.89 + 441639.2 b, 2MASS J19440088 + 4416392 b | |
Kepler-452b is an exoplanet candidate of the star Kepler-452 , which was identified by the "Kepler" space telescope . The discovery was made public by NASA on July 23, 2015. The peculiarity of the discovery was that Kepler-452b was the third exoplanet discovered after Tau Ceti e and Kepler-22b , which orbits a star similar to the sun and of which an earth-similarity was suspected. The planet was identified in 2018 by a study by Mullally et al. downgraded to candidate status, as no confirmation from Kepler has yet been provided.
more details
Kepler-452b is located in the habitable zone of his planetary system - that is, in the area of a planetary system in which the existence of liquid water and thus life, comparable to that on earth, is possible. He is on the list of potentially habitable planets . Its star is about 1,800 light-years from the Sun and is very similar to it. It's only 10% bigger and a bit brighter than this one. At 6 billion years, the system is around 1.5 billion years older than the solar system . Kepler-452b is about 40–80% larger in diameter than Earth. Its orbital period is 385 earth days.
gallery
Orbit of Kepler-452b in the Kepler-452 system, compared with the inner solar system and the Kepler-186 system and their habitable zones
Comparison of planets discovered by the “Kepler” space telescope in the habitable zone of their star
Comparison of Kepler-452b and other exoplanets with Earth
literature
- Jon M. Jenkins et al: Discovery and Validation of Kepler-452b. A 1.6-R ⊕ Super Earth Exoplanet in the habitable Zone of a G2 star . In: Astrononomical Journal . July 23, 2015 (English, online [PDF; accessed July 24, 2015]).
Web links
Individual evidence
- ↑ a b c d e Kepler-452 b. In: NASA Exoplanet Archive . Retrieved November 15, 2019 .
- ↑ a b Planet Kepler-452 b. In: Extrasolar Planets Encyclopaedia . Retrieved July 24, 2015 .
- ↑ Fergal Mullally, Susan E. Thompson, Jeffrey L. Coughlin, Christopher J. Burke, Jason F. Rowe: Kepler's Earth-like Planets Should Not Be Confirmed without Independent Detection: The Case of Kepler-452b . In: The Astronomical Journal . tape 155 , no. 5 , 2018, doi : 10.3847 / 1538-3881 / aabae3 , arxiv : 1803.11307 , bibcode : 2018AJ .... 155..210M .
- ↑ Felicia Chou, Michelle Johnson: NASA's Kepler Mission Discovers Bigger, Older Cousin to Earth (English). NASA, July 23, 2015. Retrieved July 23, 2015.
- ↑ Possible life at a distance of 1400 light years . Article in the Nordwest-Zeitung of July 24, 2015. Accessed July 24, 2015.