Mercury

Informações detalhadas

Sobre 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.

Fatos rápidos

  • 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
Página de fatos da NASA

Informações do planeta

Localização: Beijing

Atualizado: 2026-04-30 19:04:49+08:00
Group Propriedade Valor
Current Position Right Ascension 01h34m06s
Current Position Declination +07°41'20"
Current Position Constellation Pisces
Current Position Azimuth 294.1075192291816°
Current Position Altitude -15.043375816369085°
Current Position Elongation 15.274768852137196°
Distance Information Earth Distance 1.2443479103856459 AU
Distance Information Sun Distance 0.3804674872672918 AU
Distance Information Earth Distance (km) 186151797.803687 km
Visual Information Magnitude -0.7476809513811764
Visual Information Angular Diameter 5.406606075348046"
Visual Information Phase Angle 44.22097831210884°
Visual Information Illumination 85.83276495702847%
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 4.250059771031374°
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

Gráfico de trajetória anual

Gráfico de altitude diária

Carregando gráfico de altitude...