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Info for exoplanet "Saiwair Yu"


Scientific (actual) data
PlanetGJ 251 b
Planet statusConfirmed
Mass sini0.013
Orbital period14.238
Semi major axis0.0818
Orbit eccentricity0.1
Discovered2017
Updated2023-07-24
Omega78.8
Tperi2458630
K2.11
Temperature (kelvin)351
PublicationPublished in a refereed paper
Detection typeRadial Velocity
Mass detection typeRadial Velocity
Alternate namesHD 265866 b
Star nameGJ 251
Right ascension103.7°
Declination33.27°
Mag v10
Star distance6.581
Star metallicity-0.03
Star mass0.36
Star radius0.364
Star sp typeM3.0V
Star temperature3451
Wikipedia articleGJ 251 b

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Fictional info (?)
Suggested nameSaiwair Yu
Planet typeTerrestrial
This planet is named after the deity Saiwair Yu, the bringer of nature.

There are ongoing investigations assessing the past habitability potential of Saiwair Yu, as well as the possibility of extant life.

Optical ground-based telescopes are typically limited to resolving features about 180 kilometers across when Saiwair Yu is closest because of Earth's atmosphere.

In 2284, images from Frontier 6 showed Saiwair Yu as an almost featureless planet in visible light, without the cloud bands or storms associated with the other terrestrials.
Estimated population8
AtmosphereMethane44%
Water30%
Oxygen17%
Carbon dioxide7.7%
Atmospheric pressure0.14 bar
artist's rendition
MoonWojyuanMedium-sized round gaseous asteroid
ZyinMedium-sized slightly egg-shaped oceanic comet
Annwa-gyot YangLarge round crater-filled moon
Fangchou'chyanVery small round rocky asteroid
QandyaobMedium-sized round gaseous asteroid
Wang Lenan YenVery small potato shaped ice asteroid
Shwa WyueMedium-sized round gaseous planetoid
Yuan-hwanSmall slightly egg-shaped rocky planetoid
EncwaMedium-sized slightly egg-shaped crater-filled moon
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