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Info for exoplanet "Guhyuju Cho"


Scientific (actual) data
PlanetK2-198 d
Planet statusConfirmed
Radius0.218
Orbital period7.45002
Semi major axis0.05234
Inclination89.86
Discovered2019
Updated2021-02-05
Tconj2457210
Tzero tr2457210
Impact parameter0.047
Temperature (kelvin)943
PublicationPublished in a refereed paper
Detection typePrimary Transit
Radius detection typePrimary Transit
Alternate names2MASS J13152252-0627535 d, EPIC 212768333 d, EPIC 212768333.02, TYC 4964-1269-1 d, WISE J131522.49-062753.9 d
Star nameK2-198
Right ascension198.84°
Declination-6.46°
Mag v11
Mag j9.741
Mag h9.313
Star distance110.91
Star mass0.8
Star radius0.76
Star temperature5212.9
Star alternate namesEPIC 212768333, 2MASS J13152252-0627535, TYC 4964-1269-1, WISE J131522.49-062753.9
Wikipedia articleK2-198 d

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Fictional info (?)
Suggested nameGuhyuju Cho
Planet typeHot planet
Guhyuju Cho is the largest and most round planet in its solar system. It has the longest rotation period (445 days) of any planet in its solar system and rotates in the opposite direction to most other planets.

It is named after the deity Guhyuju Cho, the messenger of the sky.

Guhyuju Cho is a hot planet and is sometimes called Earth's "sister planet" because of their similar size, mass, proximity to K2-198, and bulk composition. Guhyuju Cho's surface is a barren desertscape interspersed with slab-like rocks and is periodically resurfaced by volcanism.

Guhyuju Cho is the site of Robusto Montanus, the tallest volcano and second-highest known mountain in its solar system, and of Valles Marineris, one of the largest canyons in its solar system.
AtmosphereWater vapor52%
Hydrogen peroxide43%
Carbon monoxide2.8%
Hydrogen1.6%
Atmospheric pressure0.05 bar
artist's rendition
MoonDamyochi'iSmall potato shaped rocky moon
Ruyuu JoMedium-sized almost round rocky moon
NuyokyoMedium-sized almost round gaseous asteroid
Hedo Churyo'nyaVery small slightly egg-shaped gaseous asteroid
Nafubyu-kyoVery small irregular rocky comet
Gyonya ToLarge irregular rocky moon
Zeroma KyoVery small round crater-filled asteroid
Hyonku Shuko KiSmall slightly egg-shaped oceanic asteroid
Hyame MyoVery small round rocky planetoid
KushiHuge almost round oceanic planetoid
Myanyu Zecha-ruHuge irregular oceanic moon
Ryoze NetaVery small irregular gaseous planetoid
Hetarya RepyaSmall almost round rocky comet
Ryuhicha-takoLarge slightly egg-shaped crater-filled comet
Shakiryo-chiLarge potato shaped gaseous asteroid
Nugorejo HekujuLarge potato shaped gaseous asteroid
Byupone ShaVery small round crater-filled moon
ChumuMedium-sized round crater-filled comet
Wanya NeMedium-sized potato shaped crater-filled comet
Joresecha'peVery small round crater-filled asteroid
Jashu-zonryuLarge potato shaped crater-filled moon
KugyamaMedium-sized irregular ice moon
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