exoplanet_descriptions/2mass_j0534-0530_b.txt Piri Cho (2MASS J0534-0530 b) - Astro
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Info for exoplanet "Piri Cho"


Scientific (actual) data
Name2MASS J0534-0530 b
Planet statusConfirmed
Planet mass4.6
Semi major axis198.5
Angular distance0.48
Discovered2020
Updated2025-08-30
PublicationPublished in a refereed paper
Detection typeImaging
Mass measurement typeSpectrum
Alternate names2MASS J05342857-0530325 b
Star name2MASS J0534-0530
Right ascension83.62°
Declination-5.51°
Mag v20.2
Mag i16.24
Mag j14.6
Mag h14
Mag k13.7
Star distance413.5
Star mass0.07
Star radius0.74
Star sp typeM4.1e
Star age0.0033
Star temperature2841
Star alternate names2MASS J05342857-0530325
Wikipedia article2MASS J0534-0530 b

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Fictional info (?)
Suggested namePiri Cho
Planet typeLarge cold gas giant
The planet telescopically displays the complete range of phases, similar to Venus and the Moon, as it moves in its inner orbit relative to 2MASS J0534-0530, which reoccurs over the so-called synodic period approximately every 75 days.

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).
AtmosphereCarbonyl sulfide52%
Nitrogen39%
Hydrogen7.9%
Ozone0.2%
Carbon dioxide0.1%
Nitric oxide0.062%
Atmospheric pressure5 bar
artist's rendition
MoonNyupoda'nosehiMedium-sized potato shaped oceanic asteroid
Opocha GaVery small slightly egg-shaped rocky asteroid
Noyonyu HiMedium-sized slightly egg-shaped rocky moon
Gozehya'puMedium-sized potato shaped rocky moon
Nyuibya KuMedium-sized slightly egg-shaped crater-filled moon
Yake Dora FuhaMedium-sized slightly egg-shaped oceanic asteroid
Ryuryu'fuchuHuge almost round oceanic moon
ShunuVery small round oceanic moon
YopaSmall round gaseous asteroid
Hyuwabo-zohoSmall irregular gaseous moon
Royasha KyaSmall potato shaped ice asteroid
GajaryuVery small potato shaped gaseous moon
Shopu-menyaHuge almost round ice asteroid
Dore'pugu-iVery small round rocky moon
Byakikyo TaVery small round ice asteroid
Piruukyo SharahyaHuge round rocky moon
NyagiMedium-sized round rocky moon
Myuha'byari ShuVery small irregular crater-filled asteroid
AbashiSmall potato shaped gaseous moon
Hihajaja RifuHuge slightly egg-shaped ice asteroid
Nemi'hiVery small slightly egg-shaped ice moon
Chushi-poMedium-sized slightly egg-shaped gaseous comet
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