• 3753 Cruithne is a Q-type, Aten asteroid in orbit around the Sun in 1:1 orbital resonance with Earth, making it a co-orbital object.
  • Cruithne, sometimes referred to as Earth’s second moon, is an object in space that orbits our Sun, and give Earth some company along the way.
  • Cruithne's orbit takes it inwards towards the orbit of Mercury, and outside the orbit of Mars. ... The Earth helps maintain the orbit of Cruithne by "shepherding" it.
  • Let’s talk about Cruithne – a mysterious object that some consider the “Earth’s second moon”. Read on and find out why this idea came about and how true it is.
  • Cruithne orbits the Sun in about 1 year but it takes 770 years for the series to complete a horseshoe-shaped movement around the Earth.
  • (Luna IS a real moon.) But Cruithne is locked into a 1::1 resonance with Earth. (Another resonance in the solar system is the 3::2 resonance of Neptune and Pluto.
  • Asteroid Cruithne has a very peculiar horseshoe orbit which is difficult to describe in words. Some have called it Earth’s second Moon.
  • Table of Contents
    • Will Cruithne hit Earth?
    • Where is 3753 Cruithne now?