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Info for exoplanet "Isyx Ek"


Scientific (actual) data
PlanetK2-152 b
Planet statusConfirmed
Radius0.204
Orbital period32.6479
Semi major axis0.1716
Discovered2018
Updated2021-02-05
Tconj2457610
Tzero tr2457580
Impact parameter0.25
Temperature (kelvin)337
PublicationPublished in a refereed paper
Detection typePrimary Transit
Alternate names2MASS J12063188-0549386 b, EPIC 201128338 b, EPIC 201128338.01, WISE J120631.80-054938.7 b
Star nameK2-152
Right ascension181.63°
Declination-5.83°
Mag j10.956
Mag h10.277
Star distance108.7
Star metallicity0.12
Star mass0.63
Star radius0.61
Star sp typeM0.0 V
Star temperature4044
Star alternate names2MASS J12063188-0549386, EPIC 201128338, WISE J120631.80-054938.7
Wikipedia articleK2-152 b

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Fictional info (?)
Suggested nameIsyx Ek
Planet typeCold planet
Isyx Ek has been known to astronomers since antiquity. This cold planet is named after the deity Isyx Ek, the spirit of love and beauty.

An observer on Isyx Ek would therefore see only one day every two years.

Having almost no atmosphere to retain heat, it has surface temperatures that vary diurnally more than on any other planet in its solar system, ranging from 170°K (-103°C) at night to 525°K (252°C) during the day across the equatorial regions.

The neon has probably photodissociated, and the free ammonium hydrosulfide (NH4SH) has been swept into interplanetary space by the solar wind because of the lack of a planetary magnetic field.

Plans have been proposed for rovers or more complex missions, but they are hindered by Isyx Ek's strong magnetosphere.
AtmosphereAmmonium hydrosulfide (NH4SH)54%
Carbon dioxide23%
Neon9.1%
Helium7.5%
Nitric oxide6.4%
Ammonia0.11%
Atmospheric pressure1.3 bar
artist's rendition
No known satellites
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