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Space Astro
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Info for exoplanet "Prax"
| Scientific (actual) data |
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| Planet | K2-29 b |
| Planet status | Confirmed |
| Planet mass | 0.73 |
| Mass sini | 0.73 |
| Radius | 1.19 |
| Orbital period | 3.25883 |
| Semi major axis | 0.04217 |
| Orbit eccentricity | 0.066 |
| Inclination | 86.656 |
| Discovered | 2016 |
| Updated | 2021-02-05 |
| Omega | 132 |
| Tconj | 2453220 |
| Tzero tr | 2453220 |
| Lambda angle | 1.5 |
| Impact parameter | 0.58 |
| K | 103.5 |
| Temperature (kelvin) | 1171 |
| Publication | Published in a refereed paper |
| Detection type | Primary Transit |
| Mass detection type | Radial Velocity |
| Radius detection type | Primary Transit |
| Alternate names | EPIC 211089792 b, WASP-152 b, 1SWASP J041040.95+242407.3 b, 2MASS J04104086+2424061 b, EPIC 211089792 A b, EPIC 211089792.01, K2-29 A b, TYC 1818-1428-1 b, WISE J041040.88+242405.9 b |
| Star name | K2-29 |
| Right ascension | 62.67° |
| Declination | 24.4° |
| Mag j | 10.622 |
| Mag h | 10.168 |
| Star distance | 179.39 |
| Star metallicity | 0.16 |
| Star mass | 0.94 |
| Star radius | 0.86 |
| Star sp type | G7 V |
| Star age | 2.6 |
| Star temperature | 5358 |
| Star alternate names | WASP-152, EPIC 211089792, 1SWASP J041040.95+242407.3, 2MASS J04104086+2424061, EPIC 211089792 A, K2-29 A, TYC 1818-1428-1, WISE J041040.88+242405.9 |
| Wikipedia article | K2-29 b |
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| Fictional info (?) |
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| Suggested name | Prax |
| Planet type | Hot gas giant |
| When viewed from Nagetemaka, Prax can reach an apparent magnitude of -3, bright enough for its reflected light to cast shadows, and making it on average the third-brightest object in the night sky. This planet is named after the deity Prax, the messenger of chaos.
Prax is gravitationally locked with K2-29 in a 5:4 spin-orbit resonance, and rotates in a way that is unique in its solar system.
The 2H2O has probably photodissociated, and the free methane has been swept into interplanetary space by the solar wind because of the lack of a ethane layer. |
| Atmosphere | Methane | 72% |
| Water vapor | 19% |
| 2H2O | 7.7% |
| Ethane | 0.27% |
| Sulfur dioxide | 0.16% |
| Carbon monoxide | 0.11% |
| Oxygen | 0.0097% |
| Atmospheric pressure | 80 bar |
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| No known satellites |
| Google search for Prax |
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Website by Joachim Michaelis
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