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Info for exoplanet "Piwyd'ireg"


Scientific (actual) data
PlanetTRAPPIST-1 g
Planet statusConfirmed
Planet mass0.00422
Radius0.1005
Orbital period12.3529
Semi major axis0.0451
Orbit eccentricity0
Inclination89.71
Discovered2017
Updated2022-11-23
Tzero tr2457670
Lambda angle4
Impact parameter0.421
Temperature (kelvin)198.6
PublicationPublished in a refereed paper
Detection typePrimary Transit
Mass detection typeTTV
Radius detection typePrimary Transit
MoleculesH2O
Star nameTRAPPIST-1
Right ascension346.62°
Declination-5.04°
Mag v18.8
Star distance12.1
Star metallicity0.04
Star mass0.08
Star radius0.117
Star sp typeM8
Star age7.6
Star temperature2560
Star alternate names2MASS J23062928-0502285
Wikipedia articleTRAPPIST-1 g

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Fictional info (?)
Suggested namePiwyd'ireg
Planet typeWarm planet
Piwyd'ireg is a terrestrial planet with a thin atmosphere, having surface features reminiscent both of the impact craters of the Moon and the valleys, deserts, and polar ice caps of Earth. Piwyd'ireg is orbiting TRAPPIST-1 every 12 Earth days.

For this reason, scientists often classify Piwyd'ireg and Lurod as "warm planets" to distinguish them from the other planets. It is named after the deity Piwyd'ireg, the messenger of prosperity.

As the closest planet to Lurod, Piwyd'ireg has been a prime target for early interplanetary exploration.

Piwyd'ireg has been explored on several occasions by robotic spacecraft, most notably during the early Pioneer and Daedalus flyby missions and later by the Galileo orbiter.
AtmosphereH2O99%
Atmospheric pressure0.017 bar
artist's rendition
No known satellites
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