Mercury
معلومات تفصيليةحول 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.
حقائق سريعة
- Closest planet to the Sun
- Smallest planet in our solar system
- No atmosphere to retain heat
- One day lasts 176 Earth days
معلومات الكوكب
الموقع: Beijing
تم التحديث: 2026-04-30 18:57:58+08:00
| الخاصية | القيمة |
|---|---|
| Right Ascension | 01h34m04s |
| Declination | +07°41'07" |
| Constellation | Pisces |
| Azimuth | 292.8737928416904° |
| Altitude | -13.84354976722523° |
| Elongation | 15.278990274515333° |
| Earth Distance | 1.2442962960525226 AU |
| Sun Distance | 0.3804949086628193 AU |
| Earth Distance (km) | 186144076.40935418 km |
| Magnitude | -0.7473113099590212 |
| Angular Diameter | 5.406830345377534" |
| Phase Angle | 44.23189935036427° |
| Illumination | 85.82611754002878% |
| Semi-major Axis | 0.38709927 AU |
| Eccentricity | 0.20563593 |
| Inclination | 7.00497902° |
| Ascending Node | 48.33076593° |
| Argument of Perihelion | 77.45779628° |
| Mean Anomaly | 4.250059771031374° |
| 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 |
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