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Info for exoplanet "Syconomia Hali"


Scientific (actual) data
PlanetTOI-1296 b
Planet statusConfirmed
Mass sini0.298
Radius1.231
Orbital period3.94437
Semi major axis0.0497
Orbit eccentricity0.055
Discovered2021
Updated2021-07-15
Omega137
Tzero tr2458930
Impact parameter0.13
K34.8
Temperature (kelvin)1562
PublicationPublished in a refereed paper
Detection typePrimary Transit
Mass detection typeRadial Velocity
Radius detection typePrimary Transit
Star nameTOI-1296
Right ascension256.77°
Declination70.24°
Mag v11.37
Star distance313.7
Star metallicity0.44
Star mass1.17
Star radius1.664
Star age6.9
Star temperature5603
Wikipedia articleTOI-1296 b

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Fictional info (?)
Suggested nameSyconomia Hali
Planet typeHot planet
This planet is named after the deity Syconomia Hali, the creator of fear.

When viewed from Dime Ijice-lene, this proximity to TOI-1296 means the planet can only be seen near the western or eastern horizon during the early evening or early morning. At this time it may appear as a bright star-like object, but is often far more difficult to observe than Dime Ijice-lene.

As seen relative to the fixed stars, it rotates on its axis exactly four times for every five revolutions it makes around TOI-1296.

Two spacecraft have visited Syconomia Hali: Wayfinder 3 flew by 17 years ago; and Messenger, launched 26 years ago, orbited Syconomia Hali over 105 times in four years before exhausting its reactor and crashing into the planet's surface 8 years later.

It may have had xenon oceans in the past, but these would have vaporized as the temperature rose due to a runaway greenhouse effect.

Syconomia Hali was one of the first planets to have its motions plotted across the sky - as early as the second millennium BC.
AtmosphereAmmonium hydrosulfide (NH4SH)58%
Molecular hydrogen37%
Xenon4.5%
Sulfur dioxide0.05%
Carbon monoxide3.1E-5%
Methane8.0E-6%
Atmospheric pressure0.18 bar
artist's rendition
MoonFornkeka PeroLarge round rocky comet
Ronlyke CheVery small irregular crater-filled asteroid
Ijiano-nolia LeMedium-sized round rocky planetoid
Calid NaHuge almost round ice comet
Mosri Syco NebiLarge irregular crater-filled moon
Onephaë-franLarge almost round oceanic moon
Pero Misjul PeVery small round oceanic comet
Teusno Ritri PhoHuge potato shaped gaseous asteroid
CugirVery small round rocky moon
Sutculo BianLarge round ice moon
Orfariepi HaliSmall slightly egg-shaped oceanic comet
Kepho Lygame MalVery small potato shaped crater-filled asteroid
Mirhionn Onepa NoeLarge round rocky planetoid
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