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Space Astro
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Info for exoplanet "Ruyamya"
| Scientific (actual) data |
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| Name | HD 4732 Ac |
| Planet status | Confirmed |
| Mass sini | 2.37 |
| Orbital period | 2732 |
| Semi major axis | 4.6 |
| Orbit eccentricity | 0.23 |
| Discovered | 2013 |
| Updated | 2024-07-30 |
| Omega | 118 |
| Tperi | 2456090 |
| K | 24.4 |
| Publication | Published in a refereed paper |
| Detection type | Radial Velocity |
| Alternate names | HR 228 c, HD 4732 c, HR 228 A c |
| Star name | HD 4732 A |
| Right ascension | 12.31° |
| Declination | -24.14° |
| Mag v | 5.9 |
| Star distance | 56.5 |
| Star metallicity | 0.01 |
| Star mass | 1.74 |
| Star radius | 5.4 |
| Star sp type | K0III-IV |
| Star temperature | 4959 |
| Star alternate names | HD 4732 |
| Wikipedia article | HD 4732 Ac |
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| Fictional info (?) |
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| Suggested name | Ruyamya |
| Planet type | Cold planet |
| Its orbital period around HD 4732 A of 2700 earth days is the longest of all the planets in its solar system.
Having almost no atmosphere to retain heat, it has surface temperatures that vary diurnally more than on any other planet in its solar system, ranging from 75°K (-198°C) at night to 875°K (602°C) during the day across the equatorial regions.
Because of its rapid rotation, the planet's shape is that of an oblate spheroid (it has a slight but noticeable bulge around the equator). |
| Atmosphere | Oxygen | 52% |
| Ammonium hydrosulfide (NH4SH) | 34% |
| Water vapor | 13% |
| Atmospheric pressure | 80 bar |
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| No known satellites |
| Google search for Ruyamya |
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Website by Joachim Michaelis
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