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Kepler-90e
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 Illustration of the Kepler-90 system compared to the inner solar system. The orbital distance of Kepler-90e is comparable to that of Mercury, as shown in this illustration. | |
| Discovery | |
|---|---|
| Discovered by | J. Cabrera et al.[1] |
| Discovery date | 23 October 2013 |
| Transit method | |
| Orbital characteristics | |
| 0.42 ± 0.06 AU (62,800,000 ± 9,000,000 km)[1] | |
| 91.93913 ± 0.00073[1] d | |
| Inclination | 89.79 ± 0.19[1] |
| Star | Kepler-90 |
| Physical characteristics | |
| 2.66 ± 0.29[1] R🜨 | |
| Temperature | 453 K (180 °C) |
Kepler-90e is an exoplanet orbiting the star Kepler-90, located in the constellation Draco. It was discovered by the Kepler telescope in October 2013. It orbits its parent star at only 0.42 astronomical units away, and at its distance it completes an orbit once every 91.94 days.[1]
Artist's impression of the planets of the Kepler-90 exoplanetary system compared to the eight planets of the Solar System.
Host star
[edit]The planet orbits a G-type star named Kepler-90, its host star. The star is 1.2 times as massive as the Sun and is 1.2 times as large as the Sun. It is estimated to be 2 billion years old, with a surface temperature of 6080 K. In comparison, the Sun is about 4.6 billion years old[2] and has a surface temperature of 5778 K.[3]
References
[edit]- ^ a b c d e f Cabrera, J; Csizmadia, Sz; Lehmann, H; Dvorak, R; Gandolfi, D; Rauer, H; Erikson, A; Dreyer, C; Eigmüller, Ph; Hatzes, A (2013). "The Planetary System to KIC 11442793: A Compact Analogue to the Solar System". The Astrophysical Journal. 781 (1): 18. arXiv:1310.6248. Bibcode:2014ApJ...781...18C. doi:10.1088/0004-637X/781/1/18. S2CID 118875825.
- ^ Fraser Cain (16 September 2008). "How Old is the Sun?". Universe Today. Retrieved 19 February 2011.
- ^ Fraser Cain (15 September 2008). "Temperature of the Sun". Universe Today. Retrieved 19 February 2011.
