exoplanet_descriptions/gj_504_b.txt Pefumya Nza (GJ 504 b), Exoplanets
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Info for exoplanet "Pefumya Nza"


Scientific (actual) data
NameGJ 504 b
Planet statusConfirmed
Planet mass25.2
Radius0.92
Semi major axis43.5
Discovered2013
Updated2026-06-18
Temperature (kelvin)564
Temp measured544
Log g3.9
PublicationPublished in a refereed paper
Detection typeImaging
Mass measurement typeSpectrum
Radius measurement typeFlux
Alternate namesE Vir b
MoleculesCH4, CO, CO2, H2O, H2S, KCl, NH3, ZnS
Star nameGJ 504
Right ascension199.2°
Declination9.42°
Mag v5.22
Star distance17.56
Star metallicity0.27
Star mass1.22
Star sp typeG0V
Star age4
Star temperature6291
Star alternate namesHR 5011, e Vir, HD 115383
Wikipedia articleGJ 504 b

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Fictional info (?)
Suggested namePefumya Nza
Planet typeHuge 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 GJ 504, which reoccurs over the so-called synodic period approximately every 116 days.

The atmospheric pressure at the planet's surface is 0.003 bar, or roughly the pressure found 1350 m under the oceans of Earth.

tricky journey.
AtmosphereH2S,38%
CH4,25%
CO2,18%
ZnS9.9%
NH3,7%
CO,0.52%
H2O,0.064%
KCl,0.032%
Atmospheric pressure0.003 bar
artist's rendition
No known satellites
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