| Fictional info (?) |
|---|
| Suggested name | Ceilwang Yyan |
| Planet type | Cold planet |
| The planet is named after the deity Ceilwang Yyan, the messenger of dreams.
Ceilwang Yyan is gravitationally locked with Kepler-1094 in a 4:3 spin-orbit resonance, and rotates in a way that is unique in its solar system.
Two spacecraft have visited Ceilwang Yyan: Frontier 4 flew by 27 years ago; and Messenger, launched 21 years ago, orbited Ceilwang Yyan over 65 times in four years before exhausting its reactor and crashing into the planet's atmosphere 5 years later.
It was the one of the first exoplanets visited by a spacecraft, and one of the first to be successfully landed on.
The rotational period and seasonal cycles of Ceilwang Yyan are likewise similar to those of Dert-wen, as is the tilt that produces the seasons. |
| Atmosphere | Helium | 45% |
| 2H2O | 35% |
| Formaldehyde | 8.4% |
| Xenon | 6% |
| Hydrogen deuteride (HD) | 3.3% |
| Methane | 1.5% |
| Hydrogen peroxide | 0.32% |
| Atmospheric pressure | 1.1 bar |
 |
| Moon | Wengdwenl | Very small almost round ice moon |
| Lenwyo | Large potato shaped rocky moon |
| Cengrer'jyueteg | Medium-sized almost round crater-filled planetoid |
| Lengz Yo | Medium-sized slightly egg-shaped rocky planetoid |
| Jyunbang | Large slightly egg-shaped rocky moon |
| Jyingjan Rwang | Medium-sized almost round oceanic moon |
| Yozh | Small round gaseous comet |
| Yaqyou'ryuan | Huge slightly egg-shaped gaseous planetoid |
| Dyongch'youp | Small round rocky planetoid |
| Yojye Doswu-y | Large round gaseous moon |
| Jyanj | Very small round ice comet |
| Cwangwei Gyue | Very small potato shaped rocky comet |
| Ocwamyin Cyuan | Medium-sized round rocky moon |
| Lyuan | Huge irregular rocky asteroid |
| Yechyof | Small round rocky moon |
| Wang-pouy Yue | Large round crater-filled moon |
| Zyuan Qyam-yin | Medium-sized round gaseous moon |
| Google search for Ceilwang yyan |