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Info for exoplanet "Pugyja No"


Scientific (actual) data
Planet8 Umi b
Planet statusConfirmed
Mass sini1.65
Orbital period93.31
Semi major axis0.462
Orbit eccentricity0.062
Discovered2015
Updated2023-06-29
Omega53.8
Tperi2457600
K56.1
PublicationPublished in a refereed paper
Detection typeRadial Velocity
Mass detection typeRadial Velocity
Star name8 Umi
Right ascension224.2°
Declination74.9°
Mag v6.83
Star distance159.1
Star metallicity-0.03
Star mass1.8
Star radius9.9
Star sp typeK0
Star age1.7
Star temperature4847.4
Wikipedia article8 Umi b

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Fictional info (?)
Suggested namePugyja No
Planet typeCold planet
It is the coldest planetary atmosphere in its solar system, with a minimum temperature of 70°K (-203°C), and has a complex, layered cloud structure with carbon monoxide thought to make up the lowest clouds, and ammonia the uppermost layer of clouds. It is named after the deity Pugyja No, the bringer of good fortune.

Pugyja No is gravitationally locked with 8 Umi in a 3:2 spin-orbit resonance, and rotates in a way that is unique in its solar system.

In late February 3000, Pugyja No was visited by the New Horizons probe, which used Pugyja No's gravity to increase its speed and bend its trajectory en route to Osef Acof-e.
AtmosphereAmmonia34%
Carbon monoxide24%
Hydrogen peroxide23%
Molecular hydrogen17%
Neon2.6%
Hydrogen0.064%
Nitrogen0.00034%
Carbon dioxide8.4E-5%
Atmospheric pressure0.07 bar
artist's rendition
No known satellites
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