exoplanet_descriptions/coup_225.txt Cyunl-ei (COUP 225) - Exoplanets
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Info for exoplanet "Cyunl-ei"


Scientific (actual) data
NameCOUP 225
Planet statusConfirmed
Planet mass12.9
Discovered2005
Updated2025-11-25
Temperature (kelvin)2308
PublicationPublished in a refereed paper
Detection typeImaging
Mass measurement typeSpectrum
Alternate names2MASS J05350467-0525508
Right ascension83.77°
Declination-5.43°
Star distance414
Wikipedia articleCOUP 225

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Fictional info (?)
Suggested nameCyunl-ei
Planet typeHuge cold gas giant
It is a huge cold gas giant planet with a mass one-thousandth that of @STARNAME, but two-and-a-half times that of all the other planets in its solar system combined.

It may have had water oceans in the past, but these would have vaporized as the temperature rose due to a runaway greenhouse effect.

The largest moon, Rweipyong, has a diameter greater than that of the planet Jupiter.

This place is occupied by strange terraformed oceanic creatures, the "Ganmyuan Hyuan", which feed on the surface while killing another species called Bwaqyo'pan. They are believed to be related to Wumwusyu but have 2 legs and vary in size from 70 to 110 cm. The Ganmyuan Hyuan can reproduce at temperatures from 150 to 230°C and predators attacking.
Estimated population0.018
AtmosphereOxygen98%
Methane1.6%
Water0.16%
Carbon dioxide0.064%
Atmospheric pressure9 bar
artist's rendition
MoonOqaotyun'nwaiHuge potato shaped rocky planetoid
RweipyongMedium-sized potato shaped ice moon
JwubyaoySmall slightly egg-shaped rocky comet
Yingkyo-byoyye-dMedium-sized irregular gaseous moon
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