🪐 太阳系行星ID: uranus · VSOP87 Real-Time Ephemeris
天王星 (Uranus)
甲烷大气吸收红光呈现青绿色的冰巨星,自转轴倾角达97.8度,几乎横躺公转。
距地球距离 (Live)
18.6791 AU
279,436만 km (2,794,360,168 km)
光到达时间
155m 21s
光速基准
太阳轨道半径
19.22 AU
Period: 30,688.5 d
赤道半径
25,362 km
Gravity: 8.69 m/s²
偏心率 / 倾角
e=0.046 / 0.77°
Moons: 28
表面温度与状态
约 -224°C (太阳系最低温大气)
🔬 Astrophysical Deep Analysis & Key Features
- • 内部由水、氨和甲烷冰混合物构成,拥有暗淡的环系统与28颗卫星。
🔭 Recommended Telescope & Astrophotography Gear for Uranus
For high-magnification planetary imaging (Jupiter's Great Red Spot, Saturn's Cassini Division), a Schmidt-Cassegrain telescope (8-inch SCT) with a 2x Barlow lens and high-frame-rate planetary CMOS camera is recommended.