What is the radius of the moon?

The correct answer is 1.74 x 10⁶ m.

Important Points

• The radius of the moon is 1737.1 km or 1.74 × 10⁶ m.
• Moon is the only natural satellite of Earth.
• Moon is the 5^th largest satellite in the Solar System.
• Moon’s age is believed to be 4.53 billion years.
• Moon is 2,38,855 miles away from the earth.
• The gravitational influence of the Moon produces tides on Earth and lengthens the Earth’s day.
• Other Points about Moon –
  • Planetary mass object and differentiated rocky body
  • Lacks atmosphere, hydrosphere, and magnetic field
  • Sidereal period: 27.3 days and Synodic period: 29.5 days
  • The lunar surface is non-reflective
  • Components of Lunar surface: Silica, Alumina, Lime, Iron Oxide, Magnesia, Titanium dioxide, Sodium oxide

Additional Information

• 1^st manmade object to reach the moon: Luna 2 spacecraft (crewless) in 1959 by the Soviet Union
• 1^st successful soft landing: Luna 9 in 1966
• 1^st manned mission: Apollo 8 in 1968

• Lunar Eclipse: (Full moon) Earth is between Sun and Moon
• Solar Eclipse: (New moon) Moon is between Earth and Sun

Tinted reddish moon during the lunar eclipse