exoplanet_descriptions/kepler-1991_c.txt Chapigya (Kepler-1991 c) - Exoplanets
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Info for exoplanet "Chapigya"


Scientific (actual) data
NameKepler-1991 c
Planet statusConfirmed
Radius0.25944
Orbital period22.7902
Semi major axis0.1528
Orbit eccentricity0
Inclination89.94
Discovered2017
Updated2024-06-28
Tzero tr2454970
Impact parameter0.036
Temperature (kelvin)634
PublicationAnnounced on a website
Detection typePrimary Transit
Radius measurement typePrimary Transit
Alternate namesKOI-1276 c, KOI-1276.01
Star nameKepler-1991
Right ascension285.04°
Declination45.07°
Mag v15.048
Mag i14.542
Mag j13.539
Mag h13.194
Mag k13.067
Star distance855.82
Star metallicity0.16
Star mass0.96
Star radius0.98
Star sp typeG6V
Star age0.4
Star temperature5477
Star alternate namesKOI-1276, 2MASS J19000866+4504158, KIC 8804283
Wikipedia articleKepler-1991 c

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Fictional info (?)
Suggested nameChapigya
Planet typePlanet
It is the coldest planetary atmosphere in its solar system, with a minimum temperature of 80°K (-193°C), and has a complex, layered cloud structure with water thought to make up the lowest clouds, and carbon dioxide the uppermost layer of clouds.

It has the densest atmosphere of any planets, consisting of huge amounts of carbon dioxide. It may have had oxygen oceans in the past, but these would have vaporized as the temperature rose due to a runaway greenhouse effect.
Estimated population600000000
AtmosphereCarbon dioxide85%
Water11%
Oxygen3.3%
Methane0.0043%
Atmospheric pressure0.7 bar
artist's rendition
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EmyoroSmall round crater-filled moon
Meki Zona-enLarge round rocky planetoid
Yubyoko-inajuguHuge almost round oceanic moon
Nwokyuju'pyuSmall potato shaped rocky moon
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