Moon

詳細情報

概要 Moon

The Moon is Earth's only natural satellite and the fifth largest moon in the Solar System. It is about one-quarter the size of Earth and is the largest natural satellite relative to the size of its planet. The Moon's gravitational influence produces the ocean tides, body tides, and the slight lengthening of the day.

クイックファクト

  • Distance from Earth: ~384,400 km (238,855 miles)
  • Diameter: 3,474 km (2,159 miles) - about 1/4 of Earth's
  • Orbital period: 27.3 Earth days
  • Rotation period: 27.3 Earth days (tidally locked)
  • Surface gravity: 1.62 m/s² (1/6 of Earth's)
  • Age: ~4.5 billion years
  • Surface temperature: -173°C to 127°C (-279°F to 260°F)
  • Atmosphere: Extremely thin exosphere

もっと詳しく

月情報

位置: Beijing

更新済み: 2026-05-02 02:22 CST
Group プロパティ 値
Position Altitude 21.8°
Position Azimuth 214.5°
Position Right Ascension 14h30m09s
Position Declination -19°36'31"
Position Distance 402,088 km
Position Constellation Libra
Appearance Angular Diameter 29.71′
Appearance Illumination 99.8%
Appearance Phase Full Moon
Appearance Phase Angle 179.5°
Rise / Set Rises 20:02 local time
Rise / Set Sets 05:30 local time
Rise / Set Maximum Altitude 00:49 local time
Rise / Set Max Altitude Value 26.0°
Monthly Phases Full Moon 2026-05-01 17:23 UTC
Monthly Phases Last Quarter 2026-05-09 21:10 UTC
Monthly Phases New Moon 2026-05-16 20:01 UTC
Monthly Phases First Quarter 2026-05-23 11:10 UTC
Monthly Phases Full Moon 2026-05-31 08:45 UTC
Perigee / Apogee Perigee (2026-05-17 13:41) 358,082 km
Perigee / Apogee Apogee (2026-05-04 22:22) 405,816 km