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Space Astro
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Info for exoplanet "Ymigy"
| Scientific (actual) data |
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| Name | HD 29985 b |
| Planet status | Confirmed |
| Planet mass | 2.83 |
| Orbital period | 9855 |
| Semi major axis | 8 |
| Orbit eccentricity | 0.68 |
| Inclination | 99 |
| Discovered | 2022 |
| Updated | 2025-08-13 |
| Omega | 89.414 |
| K | 40.318 |
| Publication | Published in a refereed paper |
| Detection type | Radial Velocity, Astrometry |
| Mass measurement type | Astrometry |
| Alternate names | HIP 21865 b |
| Star name | HD 29985 |
| Right ascension | 70.52° |
| Declination | -33.92° |
| Mag v | 10.03 |
| Mag j | 7.709 |
| Mag h | 7.099 |
| Mag k | 6.972 |
| Star distance | 31.2707 |
| Star metallicity | -0.22 |
| Star mass | 0.75 |
| Star radius | 0.5746 |
| Star sp type | K4V |
| Star temperature | 4678 |
| Star alternate names | HIP 21865 |
| Wikipedia article | HD 29985 b |
Back
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| Fictional info (?) |
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| Suggested name | Ymigy |
| Planet type | Large cold gas giant |
| As seen relative to the fixed stars, it rotates on its axis exactly five times for every five revolutions it makes around HD 29985.
The polar regions are constantly below 225°K (-48°C).
It has the densest atmosphere of the known large cold gas giants, consisting partly of methane. |
| Atmosphere | Methane | 79% |
| 2H2O | 20% |
| Formaldehyde | 0.34% |
| Argon | 0.15% |
| Hydrogen deuteride (HD) | 0.013% |
| Atmospheric pressure | 0.01 bar |
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| Moon | Repu-zy | Medium-sized round oceanic asteroid |
| Bonowo Nu | Large round rocky asteroid |
| Osura Ruq | Huge almost round rocky moon |
| Tihehe'wu | Large round rocky moon |
| Google search for Ymigy |
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Website by Joachim Michaelis
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