| Fictional info (?) |
|---|
| Suggested name | Sahyo'abusu-ho |
| Planet type | Huge cold gas giant |
| Its orbital period around HD 73256 of 2700 earth days is the longest of all the planets in its solar system. It is the second-brightest natural object in the night sky after Motofu-isu, reaching an apparent magnitude of -5 - bright enough to cast shadows at night and, rarely, visible to the naked eye in broad daylight.
Sahyo'abusu-ho and Motofu-isu are huge cold gas giants rich in rock. It is the coldest planetary atmosphere in its solar system, with a minimum temperature of 25°K (-248°C), and has a complex, layered cloud structure with 2H2O thought to make up the lowest clouds, and hydrogen deuteride (HD) the uppermost layer of clouds. This huge cold gas giant is named after the deity Sahyo'abusu-ho, the god of nature.
The polar regions are constantly below 288°K (15°C).
Two spacecraft have visited Sahyo'abusu-ho: Daedalus 8 flew by 17 years ago; and Messenger, launched 9 years ago, orbited Sahyo'abusu-ho over 50 times in four years before exhausting its pwoer source and crashing into the planet's atmosphere 12 years later.
It was the one of the first exoplanets visited by a spacecraft, and one of the first to be successfully landed on. |
| Atmosphere | Hydrogen deuteride (HD) | 59% |
| 2H2O | 34% |
| Nitrogen | 6.4% |
| Hydrogen chloride | 0.047% |
| Nitric oxide | 0.0085% |
| Atmospheric pressure | 9 bar |
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| Moon | Dayoke | Small irregular ice planetoid |
| Hyafumyo | Very small round crater-filled comet |
| Hyokihe Sugima | Very small round gaseous asteroid |
| Kyuyo-ryashi | Large potato shaped ice planetoid |
| Nahi | Small slightly egg-shaped oceanic planetoid |
| Sunochu Ryo | Huge potato shaped rocky moon |
| Otosusho Kuta | Huge potato shaped ice moon |
| Teho | Large round rocky planetoid |
| Pyaramyo Pi | Small potato shaped ice moon |
| Iima Tado Hichi | Small round rocky moon |
| Geyoko Me | Medium-sized round rocky moon |
| Pyajubu Hi | Medium-sized round rocky comet |
| Chome | Large irregular rocky moon |
| Ryamya Pu | Medium-sized irregular gaseous asteroid |
| Mabesu | Very small round oceanic asteroid |
| Zenya Shapya Myu | Medium-sized irregular oceanic comet |
| Wochu Za | Large almost round rocky moon |
| Oroyu | Medium-sized almost round oceanic comet |
| Beriryu Myobo | Very small almost round rocky moon |
| Myupyu Gyu | Medium-sized round rocky asteroid |
| Bihyakyo | Very small round oceanic moon |
| Josa'zenpyu'do | Very small round ice asteroid |
| Puiyuka Gehoto Pyo | Very small round oceanic moon |
| Bepita-gemo | Small almost round oceanic moon |
| Rioko Ga | Large potato shaped rocky asteroid |
| Nyajo Tachi Cho | Very small slightly egg-shaped rocky asteroid |
| Jocha | Very small round gaseous moon |
| Jitaheji Myu | Very small almost round gaseous comet |
| Utsu Pabe | Huge potato shaped crater-filled moon |
| Buyube | Large irregular crater-filled asteroid |
| Bukyuya Chu | Small round rocky moon |
| Nnhi Myoshi Sha | Small round oceanic asteroid |
| Genyoa Fudoku | Huge round crater-filled asteroid |
| Kyapyo-ka | Small round rocky moon |
| Google search for Sahyo'abusu-ho |