exoplanet_descriptions/asassn_-15hn_b.txt Zanabya Myo (ASASSN -15hn b) - Astro
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Info for exoplanet "Zanabya Myo"


Scientific (actual) data
NameASASSN -15hn b
Planet statusConfirmed
Planet mass46.4
Orbital period0.06183
Discovered2016
Updated2025-09-27
PublicationPublished in a refereed paper
Detection typeTiming
Star nameASASSN -15hn
Right ascension136.77°
Declination-10.71°
Star sp typeDA
Wikipedia articleASASSN -15hn b

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Fictional info (?)
Suggested nameZanabya Myo
Planet typeHuge cold gas giant
It is the coldest planetary atmosphere in its solar system, with a minimum temperature of 73°K (-200°C), and has a complex, layered cloud structure with water thought to make up the lowest clouds, and carbon dioxide the uppermost layer of clouds. The planet telescopically displays the complete range of phases, similar to Venus and the Moon, as it moves in its inner orbit relative to ASASSN -15hn, which reoccurs over the so-called synodic period approximately every 64 days.

It was the one of the first exoplanets visited by a spacecraft, and one of the first to be successfully landed on.

The smooth Borealis basin in the northern hemisphere covers 34 percent of the planet and may be a giant impact feature.

A prominent result is the "great black spot", a giant storm that is known to have existed for centuries since it was first observed by radar.

The dark oceans are populated by strange and poisonous bacteria known to feed in the air by devouring smaller pray. Most of them are related to the Rogya Pyu but have scales and vary in size from 50 to 100 cm. Jiri Chazu are able to reproduce at temperatures from 60 to 110°C and also stormy weather which is common on this planet.
Estimated population2100000
AtmosphereCarbon dioxide98%
Water1.5%
Oxygen0.0053%
Methane0.0017%
Atmospheric pressure0.0023 bar
artist's rendition
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Michi-pyusa MiVery small almost round gaseous asteroid
Tsumyo Hino WoHuge round ice moon
JoryuHuge slightly egg-shaped oceanic asteroid
Gyuko-pyapyoMedium-sized round oceanic asteroid
Biso KoyaHuge round ice planetoid
Iseba NohoguHuge slightly egg-shaped rocky asteroid
Gahyachi HyumobiHuge irregular rocky moon
Sanyo Gyanu JuruSmall round rocky moon
Punyoji ShiHuge round oceanic moon
Habya-piada-bepyoSmall round ice asteroid
Shima NsoLarge slightly egg-shaped rocky asteroid
Nyosho-shoheHuge potato shaped rocky asteroid
RyobapoVery small slightly egg-shaped crater-filled asteroid
Bipe-haneVery small almost round rocky asteroid
Muesho HyahyaVery small almost round rocky moon
Nehisa HopyotoVery small round oceanic asteroid
KukenyoLarge slightly egg-shaped rocky asteroid
Gorigyu GumeSmall irregular oceanic asteroid
Rota HyuSmall irregular rocky planetoid
Pechu EkekyaSmall round rocky moon
AmunyoMedium-sized round ice asteroid
HyohepyaHuge round rocky asteroid
AutazeLarge round gaseous comet
Jubyohyo'chupaLarge potato shaped rocky planetoid
Jakiigya-kuLarge irregular oceanic asteroid
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