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Info for exoplanet "Zekada-ishi"


Scientific (actual) data
PlanetKepler-1117 b
Planet statusConfirmed
Radius0.099
Orbital period4.79028
Discovered2016
Updated2021-02-05
Tconj2454970
PublicationAnnounced on a website
Detection typePrimary Transit
Alternate names2MASS J19282034+4914149 b, K02143.01, KIC 11403339 b, KOI-2143 b, KOI-2143.01, WISE J192820.34+491414.8 b
Star nameKepler-1117
Right ascension292.09°
Declination49.24°
Mag j12.867
Mag h12.512
Mag k12.463
Star distance619
Star metallicity0.03
Star mass0.95
Star radius0.93
Star age4.27
Star temperature5612
Star alternate names2MASS J19282034+4914149, KIC 11403339, KOI-2143, WISE J192820.34+491414.8
Wikipedia articleKepler-1117 b

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Fictional info (?)
Suggested nameZekada-ishi
Planet typeCold planet
It is named after the deity Zekada-ishi, the messenger of love and beauty.

Two spacecraft have visited Zekada-ishi: Wayfinder 9 flew by 26 years ago; and Messenger, launched 12 years ago, orbited Zekada-ishi over 55 times in four years before exhausting its reactor and crashing into the planet's surface 10 years later.

It has the densest atmosphere of the two cold planets, consisting mostly of molecular hydrogen. Zekada-ishi is shrouded by an opaque layer of highly reflective clouds of sulfuric acid, preventing its surface from being seen from space in visible light.

Zekada-ishi's thick clouds make observation of its surface challenging in visible light, and the first detailed maps did not emerge until the arrival of the Magellan orbiter 20 years ago.

Liquid water cannot exist on the surface of Zekada-ishi due to low atmospheric pressure, which is less than 5 percent of Earth's, except at the lowest elevations for short periods. The two polar ice caps appear to be made largely of sand.
AtmosphereMolecular hydrogen89%
Ozone4.2%
Hydrogen3.1%
Formaldehyde2.1%
Carbon dioxide0.57%
Ethane0.52%
Atmospheric pressure30 bar
artist's rendition
No known satellites
Google search for Zekada-ishi


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