How many satellites orbit the earth at this point?
80397
About 2,270 orbit the Earth.
146206
First Satellites in orbit.\nFirst Man in orbit.\nFirst woman in orbit.\nFirst probes to Mars (many missions, all unsuccesfull).\nFirst probes to Venus (only pictures of Venus surface).\nThe Mir space station.\nThe first docking of USSR & American modules in space.\nMoon Satelites & probes.\nMany flights to the International Space Station including something like 5 of the last 6 crew transfers, and 12 or more unmaned supply vehicles.\nHundereds of satelite launches.\n\nSo much more...
678590
Yes, moons are satellites
280781
Jupiter has 63 known satellites.  Scott Shepard maintains one of the better acountings of planetary moons.
345281
None, at least no natural ones.  There may be artificial satellites sent there though.
912790
Here are some of the questions you need to answer first. Is this a geosynchronous satellite (which means stationary with respect to our view from earth), or a low earth orbiting (LEO) satellite. LEO satellite goes around the earth, typically once every 90-100 minutes. Are the signals powerful enough to do it from your home satellite dish, like that of DirecTV. Do you know the frequency? Do you know where in space it is? There are web sites where you may be able to find the locations of these satellites. Do you have the right equipment, e.g. descrambling signals that may be scrambled. Trying to install a DishTV or DirecTV dish all by yourself is the best exercise to gain some experience in this.
259018
63 known satellites (as of Feb. 2004); the four Galilean moons plus many others.
30331
According to the authority of the IAU, there are nine planets in our solar system. In increasing distance from the Sun they are (with the astronomical symbol in brackets):\n\nMercury (☿) \nVenus (♀) \nEarth (♁) with one confirmed natural satellite, Luna (the Moon) \nMars (♂) with two confirmed natural satellites, Phobos and Deimos \nJupiter (♃) with sixty-three confirmed natural satellites \nSaturn (♄) with forty-six confirmed natural satellites \nUranus () with twenty-seven confirmed natural satellites \nNeptune (♆) with thirteen confirmed natural satellites \nPluto (♇) with three confirmed natural satellites, Charon, S/2005 P 1 and S/2005 P 2 \nHowever, there is some pressure for Pluto to be reclassified as a Kuiper Belt object, especially in light of the discovery of 2003 UB313. This object, however, has not yet received a definitive classification from the IAU.\n\nSedna was widely touted as a planet when it was discovered in 2003, as it was the largest object found since Pluto. However, mainly due to its size still being smaller than Pluto's, it did not achieve planetary status from the IAU. However, the discovery in 2005 of 2003 UB313 (nicknamed Xena), with a size and mass larger than Pluto seems to have forced the issue. As of January 2006 it has not yet been accepted as a planet, but the IAU is expected to announce a definition of a planet soon, which will likely either see 2003 UB313 become a planet, or have Pluto stripped of its status.
313149
7 satelites at least.\nFiring nuke? not necessary..the nukes are carried by vehicle.... totaly undetectable....and so much more cheaper...
838857
The Earth, moving 30kilometers per second relative to the sun, orbits the sun in one year moving 942 million kilometers in that  year. But Earth has greater space velocities than this depending on other inertial frames of motion you may wish to consider. Sol(our sun...& Earth has to tag along with Sol) orbits around the center of our Milky Way galaxy at 217kilometers per second or 6.84 billion kilometers in that same year. Adding earth's small orbital motion component may bring total space motion to roughly 7 billion kilometers per year. But our Milky Way also moves relative to its neighbor galaxies at estimates that average out to 600kilometers per second or19 billion kilometers per year. Roughly calculating the small Sol-Earth component trajectory, there may be a total space motion of less than 20 billion kilometers per year. However, another frame of reference is the Cosmic Microwave Background that seems most likely to be the cooling evidence of the Big Bang. The Milky Way has a space motion of 552kilometers per second or roughly 17.4 billion kilometers per year relative to the Cosmic Microwave Background. So there you have it. Possible universal space motion estimates of under 20 billion or 17.4 billion kilometers per year. Picking either estimate, rules out any great contribution from Earth motion around the sun, even though that motion alone is 30kilometers per second! Good question.
860154
It is called "Satellite".
90765
A satellite is the moon of a planet.
24866
The Earths orbit is 93 million miles from the sun, so the diameter of the earths orbit is 186 million miles.\n3.14 x 186 million = 584 million miles for 1 orbit. This is an approximate value.
1085944
As in up there right now..none.  A launch is set for saturday July 1 at approx 350pn EST (US).  How many are in the fleet? I would have to research the NASA site, but I think there are only 3.
1090272
11038.509198867 kph.\n\nThe math: a circular geosynchronous equatorial orbit has a radius of approximately 42,164 km (from the center of the Earth).  To get the diameter of the orbit,  pi * 2 * 42164, or 264924.2207728 km diameter for the entire orbit.  Divide by 24 to get the distance traveled in one hour, 11038.509198867 kph.
1126158
There are almost 25,000 man-made objects: 8681 currently in orbit, and over 16,000 objects in a state of decay. Not every single satellite is included, since some are too small or too far away from home to be detected.
961158
Only one. The same moon you see now, will be seen 10 years from now.