Mercury
詳細資訊關於 Mercury
Mercury is a world of extremes. It's the smallest planet in our solar system and the closest to the Sun, experiencing temperature swings from 800°F (430°C) during the day to -290°F (-180°C) at night. Despite being the nearest planet to our star, Mercury is not the hottest planet – that title belongs to Venus. Mercury has the most eccentric orbit of all planets, and it completes three rotations for every two orbits around the Sun.
快速資訊
- Closest planet to the Sun
- Smallest planet in our solar system
- No atmosphere to retain heat
- One day lasts 176 Earth days
行星資訊
位置: Beijing
已更新: 2026-06-16 18:11:48+08:00
| 屬性 | 數值 |
|---|---|
| Right Ascension | 07h24m38s |
| Declination | +22°55'40" |
| Constellation | Gemini |
| Azimuth | 271.7747660520383° |
| Altitude | 35.1707532987322° |
| Elongation | 24.50694838205255° |
| Earth Distance | 0.8119512855703201 AU |
| Sun Distance | 0.4360984863941156 AU |
| Earth Distance (km) | 121466183.43344752 km |
| Magnitude | 0.5974137208311765 |
| Angular Diameter | 8.285840654704533" |
| Phase Angle | 104.93193181812437° |
| Illumination | 37.11643352855398% |
| Semi-major Axis | 0.38709927 AU |
| Eccentricity | 0.20563593 |
| Inclination | 7.00497902° |
| Ascending Node | 48.33076593° |
| Argument of Perihelion | 77.45779628° |
| Mean Anomaly | 196.5903247049646° |
| Epoch | J2000.0 |
| Orbital Period | 87.9691 days |
| Mass | 3.3011e+23 kg |
| Radius | 2439.7 km |
| Density | 5.427 g/cm³ |
| Surface Gravity | 3.7 m/s² |
| Escape Velocity | 4.25 km/s |
| Perihelion | 0.3074977516112289 AU |
| Aphelion | 0.46670078838877105 AU |
| Orbital Velocity | 47.87223915523033 km/s |
| Rotation Period | 1407.6 hours |
| Axial Tilt | 0.034° |
| Rise Time | N/A |
| Transit Time | N/A |
| Set Time | N/A |
| Visible Duration | 0.0 hours |
| Best Observation | N/A |
| Quality Rating | Unknown |
年度軌跡圖
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