exoplanet_descriptions/gy_264.txt Hicho-bu (GY 264) - Exoplanets
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Info for exoplanet "Hicho-bu"


Scientific (actual) data
NameGY 264
Planet statusConfirmed
Planet mass40
Radius6.1
Discovered1992
Updated2024-07-29
Temperature (kelvin)2710
PublicationPublished in a refereed paper
Detection typeImaging
Mass measurement typeSpectrum
Alternate namesOph L1688 118
Right ascension246.86°
Declination-24.43°
Star distance139.4
Wikipedia articleGY 264

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Fictional info (?)
Suggested nameHicho-bu
Planet typeHuge cold gas giant
It may have had ammonia oceans in the past, but these would have vaporized as the temperature rose due to a runaway greenhouse effect.

Because of its rapid rotation, the planet's shape is that of an oblate spheroid (it has a slight but noticeable bulge around the equator).
AtmosphereMolecular hydrogen76%
Ammonium hydrosulfide (NH4SH)16%
Ammonia4.3%
Argon3.3%
Formaldehyde0.1%
Atmospheric pressure0.9 bar
artist's rendition
MoonByaryo Ryoshi PuVery small slightly egg-shaped ice asteroid
Shozayo DoryamyuMedium-sized round rocky moon
Shutoji ChiSmall round ice asteroid
Kyamiji RujohyuSmall irregular rocky moon
Byupire ChaLarge round crater-filled asteroid
Myagyochu JiMedium-sized almost round crater-filled moon
Wapyo-pyake-suVery small round rocky moon
Nyopechu RiSmall slightly egg-shaped gaseous moon
Gimo HyozoSmall almost round rocky moon
Byoju BozeSmall slightly egg-shaped oceanic moon
OjipumoMedium-sized round rocky planetoid
Sosu Zapa AmyoHuge slightly egg-shaped ice asteroid
Nyahe-tsuhya PeVery small slightly egg-shaped rocky planetoid
Nyaroza HyaVery small round rocky moon
Pyamoya RuotafuSmall irregular rocky asteroid
Pyuyo-tsuMedium-sized almost round oceanic moon
JorusaHuge round rocky asteroid
Myuzakya BeMedium-sized potato shaped ice moon
Pote HamaSmall potato shaped rocky comet
Kute RyoVery small round rocky asteroid
Jimo HyuMedium-sized potato shaped oceanic asteroid
Rozuyu ShigyoLarge almost round rocky moon
Dashosa UmumakyuLarge potato shaped crater-filled asteroid
RigyoMedium-sized potato shaped rocky moon
Sokyupyu-urihiHuge irregular gaseous asteroid
Hyatsu TsuSmall slightly egg-shaped rocky moon
BefuVery small potato shaped crater-filled moon
ZokaSmall round gaseous moon
Jopugya'shumiSmall irregular gaseous asteroid
Google search for Hicho-bu


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