exoplanet_descriptions/pi2_uma_b.txt Ryajize (pi2 UMa b) - Exoplanets
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Info for exoplanet "Ryajize"


Scientific (actual) data
NamePi2 UMa b
Planet statusConfirmed
Mass sini7.1
Orbital period269.3
Semi major axis0.87
Orbit eccentricity0.432
Angular distance0.011083
Discovered2007
Updated2024-05-28
Omega23.81
Tperi2452990
PublicationPublished in a refereed paper
Detection typeRadial Velocity
Alternate names4 UMa b
Star namePi2 UMa
Right ascension130.05°
Declination64.33°
Mag v5.79
Star distance78.5
Star metallicity-0.25
Star mass1.234
Star sp typeK1III
Star age4.604
Star temperature4415
Star alternate names4 UMa
Wikipedia articlepi2 UMa b

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Fictional info (?)
Suggested nameRyajize
Planet typeCold planet
The polar regions are constantly below 306°K (33°C).

The volume of water detected has been estimated to be equivalent to the volume of water in Lake Superior.
AtmosphereAmmonia66%
Argon34%
Ammonium hydrosulfide (NH4SH)0.008%
Ethane0.00094%
Atmospheric pressure0.0013 bar
artist's rendition
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GyuneryoHuge slightly egg-shaped rocky asteroid
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