# Kepler-90e

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Super-Earth orbiting Kepler-90

Kepler-90e 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 Detection method Transit method Orbital characteristics Semi-major axis 0.42 ± 0.06 AU (62,800,000 ± 9,000,000 km)[1] Orbital period (sidereal) 91.93913 ± 0.00073[1] d Inclination 89.79 ± 0.19[1] Star Kepler-90 Physical characteristics Mean radius 2.66 ± 0.29[1] R🜨 Temperature 453 K (180 °C)

**Kepler-90e** is an exoplanet orbiting the star [Kepler-90](/source/Kepler-90), located in the constellation [Draco](/source/Draco_(constellation)). It was discovered by the *[Kepler](/source/Kepler_(spacecraft))* telescope in October 2013. It orbits its parent star at only 0.42 [astronomical units](/source/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

Main article: [Kepler-90](/source/Kepler-90)

The planet orbits a [G-type](/source/Stellar_classification#Class_G) star named [Kepler-90](/source/Kepler-90), its host star. The star is 1.2 times as massive as the [Sun](/source/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](/source/Kelvin). In comparison, the Sun is about 4.6 billion years old[2] and has a surface temperature of 5778 K.[3]

## References

1. ^ [***a***](#cite_ref-Cabrera_1-0) [***b***](#cite_ref-Cabrera_1-1) [***c***](#cite_ref-Cabrera_1-2) [***d***](#cite_ref-Cabrera_1-3) [***e***](#cite_ref-Cabrera_1-4) [***f***](#cite_ref-Cabrera_1-5) 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](/source/ArXiv_(identifier)):[1310.6248](https://arxiv.org/abs/1310.6248). [Bibcode](/source/Bibcode_(identifier)):[2014ApJ...781...18C](https://ui.adsabs.harvard.edu/abs/2014ApJ...781...18C). [doi](/source/Doi_(identifier)):[10.1088/0004-637X/781/1/18](https://doi.org/10.1088%2F0004-637X%2F781%2F1%2F18). [S2CID](/source/S2CID_(identifier)) [118875825](https://api.semanticscholar.org/CorpusID:118875825).

1. **[^](#cite_ref-2)** Fraser Cain (16 September 2008). ["How Old is the Sun?"](http://www.universetoday.com/18237/how-old-is-the-sun/). [Universe Today](/source/Universe_Today). Retrieved 19 February 2011.

1. **[^](#cite_ref-3)** Fraser Cain (15 September 2008). ["Temperature of the Sun"](http://www.universetoday.com/18092/temperature-of-the-sun/). Universe Today. Retrieved 19 February 2011.

v t e The Kepler-90 system Kepler-90 Kepler-90b Kepler-90c Kepler-90i Kepler-90d Kepler-90e Kepler-90f Kepler-90g Kepler-90h

v t e Constellation of Draco List of stars in Draco Draco in Chinese astronomy Stars Bayer α (Thuban) β (Rastaban) γ (Eltanin) δ (Altais) ε (Tyl) ζ (Aldhibah) η (Athebyne) θ ι (Edasich) κ λ (Giausar) μ (Alrakis) ν (Kuma) ξ (Grumium) ο π ρ σ (Alsafi) τ υ φ χ ψ1 (Dziban) ψ2 ω Flamsteed 4 6 7 (Tianyi) 8 (Taiyi) 10 (i) 15 (A) 18 (g) 19 (h) 26 36 39 (b) 42 (Fafnir) 45 (d) 50 59 64 (e) 68 Variable TW YY AG BY CL CM CX DO EK HP V581 HR 3751 4126 4934 5811 6237 6518 6618 (Alruba) 6817 7137 7783 HD 109246 (Funi) 101364 128717 147379 156279 158259 176693 191939 Other 2MASS 1237+6526 2MASS J17554042+6551277 G 240-72 GD 356 Gliese 420 Gliese 625 Gliese 687 GRW +70 8247 Kepler-4 Kepler-10 Kepler-12 Kepler-90 Kepler-296 KOI-256 LP 71-82 Qatar-1 SDSS J1240+6710 Struve 2398 TOI-1136 WD 1856+534 WISE 1647+5632 WISE 1841+7000 Exoplanets HD 139357 b HD 167042 b ι Dra b (Hypatia) Kepler-4b Kepler-10b c Kepler-12b Kepler-90e f g h i Kepler-296b c d e f TOI-1452 b TrES-2b Star clusters LAMOST 1 Nebulae Cat's Eye Nebula NGC 6742 Galaxies NGC 3147 3197 3735 4121 4125 4221 4236 4319 4331 4332 4363 4441 4513 4545 4589 5678 5777 5866 5866B 5879 5905 5907 5949 5963 5965 5982 5985 6090 6248 6285 6286 6338 6340 6365 6373 6394 6412 6503 6505 6566 6621 6622 6670 6676 6786 6789 Other 1ES 1927+654 1ES 1959+650 3C 249.1 3C 305 3C 319 3C 343 3C 343.1 3C 351 3C 356 3C 371 3C 380 3C 390.3 3C 401 4C +72.26 4C 73.08 8C 1241+735 Abell 2218 BCG Bean galaxy Beaver galaxy BZQ J1727+5510 Draco Dwarf Draco II GB 1508+5714 Goldfish galaxy H1821+643 HFLS3 IERS B1946+708 IRAS F17179+5444 IRAS 18580+6527 J120011.1+680924.8 KKR 25 Markarian 817 Markarian 876 Original TRG PGC 39058 Porphyrion QSO B1823+568 RGZ J172749.5+534647 S5 1803+784 S5 2007+777 SDSS J1715+6008 Tadpole Galaxy UGC 9391 UGC 9405 UGC 11241 UGC 11411 WISEA J145223.62+611707.5 WN B1851+5707 Galaxy clusters Abell 2218 CL1358+62 Draco Supercluster NGC 5866 Group Astronomical events SN 2003jb SN 2005B SN 2016aps Swift J1644+57 Category

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