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Space Astro
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Info for exoplanet "Didora"
| Scientific (actual) data |
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| Name | Kepler-21 Ab |
| Planet status | Confirmed |
| Planet mass | 0.02102 |
| Radius | 0.1472 |
| Orbital period | 2.78582 |
| Semi major axis | 0.0434281 |
| Orbit eccentricity | 0.02 |
| Inclination | 83.2 |
| Angular distance | 0.000394 |
| Discovered | 2012 |
| Updated | 2024-08-07 |
| Omega | -15 |
| Tperi | 2456800 |
| Tzero tr | 2455090 |
| Impact parameter | 0.62 |
| K | 2.41 |
| Temperature (kelvin) | 2015 |
| Publication | Announced on a professional conference |
| Detection type | Primary Transit |
| Mass measurement type | Radial Velocity |
| Radius measurement type | Primary Transit |
| Alternate names | Kepler-21 b, KOI-975 b, WISE J190926.86+384250.7 b, HD 179070 Ab, K00975.0, KIC 3632418 b, HD 179070 b, HIP 94112 b, BD+38 3455 b, SAO 67891 b, TIC 121214185 b, TYC 3120-00963-1 b, 2MASS J19092683+3842505 b |
| Star name | Kepler-21 A |
| Right ascension | 287.36° |
| Declination | 38.71° |
| Mag v | 8.27 |
| Mag j | 7.23 |
| Mag h | 7.03 |
| Mag k | 6.94 |
| Star distance | 108.522 |
| Star metallicity | -0.03 |
| Star mass | 1.408 |
| Star radius | 1.902 |
| Star sp type | F6IV |
| Star age | 2.84 |
| Star temperature | 6305 |
| Star alternate names | Kepler-21, BD+38 3455, WISE J190926.86+384250.7, HD 179070, HIP 94112, KOI-975, KIC 3632418, SAO 67891, TIC 121214185, TYC 3120-00963-1, 2MASS J19092683+3842505 |
| Wikipedia article | Kepler-21 Ab |
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| Fictional info (?) |
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| Suggested name | Didora |
| Planet type | Small hot gas planet |
| It is a small hot gas planet planet with a mass one-thousandth that of Kepler-21 A, but two-and-a-half times that of all the other planets in its solar system combined.
The volume of water detected has been estimated to be equivalent to the volume of water in Lake Superior.
The outer atmosphere is visibly segregated into several bands at different latitudes, resulting in turbulence and storms along their interacting boundaries. |
| Atmosphere | Water vapor | 62% |
| Ammonium hydrosulfide (NH4SH) | 20% |
| Methane | 16% |
| 2H2O | 1.3% |
| Ozone | 0.17% |
| Carbon monoxide | 0% |
| Atmospheric pressure | 100 bar |
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| No known satellites |
| Google search for Didora |
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Website by Joachim Michaelis
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