Mercury

Ayrıntılı Mod

About 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.

Quick Facts

  • Closest planet to the Sun
  • Smallest planet in our solar system
  • No atmosphere to retain heat
  • One day lasts 176 Earth days
Mercury - the smallest planet in our solar system
NASA Facts Page

Planet Information

Konum: Beijing

Updated: 2026-05-02 17:13:57+08:00
Group Property Value
Current Position Right Ascension 01h47m23s
Current Position Declination +09°11'30"
Current Position Constellation Pisces
Current Position Azimuth 275.9166784760893°
Current Position Altitude 7.599480719147312°
Current Position Elongation 13.516193246754618°
Distance Information Earth Distance 1.2643290923164339 AU
Distance Information Sun Distance 0.3693209210726258 AU
Distance Information Earth Distance (km) 189140940.07460222 km
Visual Information Magnitude -0.9046490979701689
Visual Information Angular Diameter 5.3211612491045654"
Visual Information Phase Angle 39.62054194985695°
Visual Information Illumination 88.51423305203818%
Orbital Elements Semi-major Axis 0.38709927 AU
Orbital Elements Eccentricity 0.20563593
Orbital Elements Inclination 7.00497902°
Orbital Elements Ascending Node 48.33076593°
Orbital Elements Argument of Perihelion 77.45779628°
Orbital Elements Mean Anomaly 12.434751895874797°
Orbital Elements Epoch J2000.0
Orbital Elements Orbital Period 87.9691 days
Derived Quantities Mass 3.3011e+23 kg
Derived Quantities Radius 2439.7 km
Derived Quantities Density 5.427 g/cm³
Derived Quantities Surface Gravity 3.7 m/s²
Derived Quantities Escape Velocity 4.25 km/s
Derived Quantities Perihelion 0.3074977516112289 AU
Derived Quantities Aphelion 0.46670078838877105 AU
Derived Quantities Orbital Velocity 47.87223915523033 km/s
Derived Quantities Rotation Period 1407.6 hours
Derived Quantities Axial Tilt 0.034°
Rise, Set, Transit Times Rise Time N/A
Rise, Set, Transit Times Transit Time N/A
Rise, Set, Transit Times Set Time N/A
Rise, Set, Transit Times Visible Duration 0.0 hours
Rise, Set, Transit Times Best Observation N/A
Rise, Set, Transit Times Quality Rating Unknown

Annual Trajectory Chart

Daily Altitude Chart

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