answersLogoWhite

0

Why isn't Cruithne a moon?

Updated: 12/9/2022
User Avatar

Wiki User

8y ago

Best Answer

It's not a moon because it doesn't orbit a planet, it directly orbits the Sun. It's basically an asteroid which is orbiting the Sun in an eccentric orbit that occasionally takes it near Earth. Cruithne's orbital period is slightly less than that of Earth, so on average the Earth is currently "following" Cruithne around the Sun, with Cruithne pulling slightly ahead each year.By about 80 years from now, it will be so far ahead that it's on pretty much the opposite side of the Sun from us, and then will be "following" Earth in its orbit, slowly catching up to us until about 2300 AD, when the Earth's gravity will push Cruithne into a slightly more distant orbit so that its orbital period becomes slightly MORE than a year, at which point it will start falling behind more and more each year until Earth catches up to it again in another 380 years and shoves it a little CLOSER to the Sun, speeding it up again and starting the whole chase over.

From Earth's point of view, Cruithne appears to be "orbiting" a point in empty space in a sort of bean-shaped orbit. This isn't really the case (Cruithne is orbiting the Sun in an elliptical orbit, just like we are), it's just how Cruithne's path appears from Earth.

User Avatar

Wiki User

8y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why isn't Cruithne a moon?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What in the solar system is cruithne?

Many people say its either our sun, or our second moon.


Is Emma Watson in new moon?

No she isnt.


Is moon astar?

No.:moon isnt a star...sun is a star...moon is a satellite...earth's satellite.


Does the moon move east across the sky?

the moon isnt in the sky its in space


Is there life on moon?

no beacaue there isnt oxygen to inhale


What is the moon’s temperature?

In the sunlight the moon is 250°f but in shadow it is -243 isnt that cool


Is the moon an Electromagnet?

noi it isnt it does not give off light.


Was Buzz Aldrin buried on the moon?

he isnt dead yet


Why is the moon shaped like a crescent?

It isnt, its roughly spherical.


Is the moon electromagnetic?

noi it isnt it does not give off light.


Does the Earth only have only one moon?

Yes. However, there is an object called Cruithne in orbit around the Sun in approximate 1:1 orbital resonance with the Earth. It has been incorrectly called "Earth's second moon", but in reality it is only a quasi-satellite of the Earth.


Is there an easier way to get your house bigger on harvest moon ds?

No sorry, but there isnt.