Iau (planed)
Oddi ar Wicipedia
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| Symbol | ♃ | ||||||
| Nodweddion orbitol | |||||||
| Pellter cymedrig i'r Haul | 5.20336301US | ||||||
| Radiws cymedrig | 778,412,010km | ||||||
| Echreiddiad | 0.04839266 | ||||||
| Parhad orbitol | 11b 315d 1.1a | ||||||
| Buanedd cymedrig orbitol | 13.0697 km s-1 | ||||||
| Gogwydd orbitol | 1.30530° | ||||||
| Nifer o loerennau | 63 | ||||||
| Nodweddion materol | |||||||
| Diamedr cyhydeddol | 142984 km | ||||||
| Arwynebedd | 6.41×1010km2 | ||||||
| Más | 1.899×1027 kg | ||||||
| Dwysedd cymedrig | 1.33 g cm-3 | ||||||
| Disgyrchiant ar yr arwyneb | 23.12 m s-2 | ||||||
| Parhad cylchdro | 9a 55.5m | ||||||
| Gogwydd echel | 3.12° | ||||||
| Albedo | 0.52 | ||||||
| Buanedd dihangfa | 59.54 km s-1 | ||||||
| Tymheredd ar yr arwyneb: |
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| Nodweddion atmosfferig | |||||||
| Gwasgedd atmosfferig | 70kPa | ||||||
| Hydrogen | ~86% | ||||||
| Heliwm | ~14% | ||||||
| Llosgnwy | 0.1% | ||||||
| Anwedd dŵr | 0.1% | ||||||
| Amonia | 0.02% | ||||||
| Ethan | 0.0002% | ||||||
| Ffosffin | 0.0001% | ||||||
| Hydrogen sylffid | <0.0001% | ||||||
Iau yw planed fwyaf Cysawd yr Haul. Mae'n gawr nwy.
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Planedau: Mercher | Gwener | Y Ddaear | Mawrth | Iau | Sadwrn | Wranws | Neifion |
