How many moons our planet Earth has?

Answer 1

No Idea!

Answer 2

1

Answer 3

There is one big enough for every body to see clearly, and there are some asteroids trapped in the gravitational axis with the earth but are simply classified as junk
----------
Over the past two centuries, night-sky observers have recorded a number of objects that moved too fast to be asteroids and too slowly to be meteors. John P. Bagby has studied this problem for over 20 years, publishing several hotly debated papers during this period. His latest contribution summarizes evidence supporting his contention that the earth has captured chunks of space debris, some of which have disintegrated, some of which are still in orbit amidst tons of artificial-satellite debris. The supporting observations have come from optical surveillance programs, tracking networks, radio-propagation anomalies, and (most interesting to the anomaly collector) old reports of bright objects near the sun (especially the August 1921 object) and the curious group of retrograde objects that passed over Germany in 1880.
-----------
Here are some simulations of Cruithne, also known as asteroid 3753, or 1986 TO, or "Earth's second moon". Many thanks to Graeme Waddington who supplied the xyz coordinates of Cruithne and the planets as of February 26 2000, and Paul Wiegert, Kimmo Innanen, and Seppo Mikkola whose research is responsible for most of what we know about Cruithne. (The coordinates are embedded in this html file, they are parameters to the gravitational simulation applet.)

Cruithne is not really a moon, because Earth and Cruithne are not gravitationally bound. (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. That means Neptune makes 3 orbits for every 2 of Pluto.) Cruithne's nearest pass to Earth is .1 AU (40 moon lengths), although right now it never comes closer than .3 AU. It is 5 kilometers (3 miles) wide.

Paul Wiegert says that two more asteroids in earth-resonant orbit have been found, 1998 UP1 and 2000 PH5. (If I find position-velocity XYZ coordinates for those and the inner planets at some point in time, I'll put up applets of those too.)

Answer 4

Brace yourself: according to some astronomers, NONE.

They argue that the Earth-Luna pair is a double-planet rather than a planet-moon pair...

For more, check out the Wikipedia reference, and look at the section called "The definition of a moon."

Answer 5

you would be supprised to know that our planet does have a second object that could be defined as a moon. a 3 mile wide asteroid that take 770 years to make a horseshoe orbit around the earth, sounds odd but here the link to the article i first read a while ago

http://www.space.com/scienceastronomy/solarsystem/second_moon_991029.html

isnt science a WONDERFUL enlightening thing

http://antwrp.gsfc.nasa.gov/apod/

check that link out also, i advise add it to your internet favorites and check it out every day theres something new

Answer 6

One

Answer 7

We have one, it rises every night when the sun goes down. We aren't like the other uninhabited planets that have many moons.

Answer 8

Well that depend of the person looking at it, if the person is sober then is only one moon, if the person is drunk then there are two moons..☺

Answer 9

One, unless some huge meteor decided to join our atmosphere in the past 24 hours.....

Answer 10

EARTH-One. Uno.
Jupiter- 63
Saturn- 56
Neptune- 13
Mars- 2
Venus- 0
Uranus- 27
Mercury- 0

Answer 11

one moon