How many satellites orbit the earth?
80107
United States Strategic Command tracks objects orbiting earth.  An AN/FPS-85 phased array radar, located at Eglin Air Force Base, is the primary sensor used to track these objects.  The radar is capable of tracking objects the size of a soccer ball at 20,000 miles.  The quote following is from USSTRATCOM's website (see first link).  The second link provides additional information on the Eglin RADAR. \n\nFWIW, the Eglin RADAR is now receiving a major hardware and software upgrade under the SENSOR contract.  ITT is the prime contractor and Northrop Grumman is the major sub.\n\n"USSTRATCOM tracks about 8,500 man-made space objects, baseball-size and larger, orbiting Earth. The space objects consist of active/inactive satellites, spent rocket bodies, or fragmentation. About 7 percent are operational satellites, 15 percent are rocket bodies, and about 78 percent are fragmentation and inactive satellites."
678590
Yes, moons are satellites
327890
24 men have orbited the moon, 12 have walked on its surface\n\n3 men orbited:\nApollo 8\nApollo 10\nApollo 13\n\n3 men orbited, 2 of whom landed:\nApollo 11\nApollo 12\nApollo 14\nApollo 15\nApollo 16\nApollo 17\n\nThe above math shows 3*9=27 men, but 3 got to orbit twice (Jim Lovell, Gene Cernan, and John Young)
703
There are over 1587 working satellites orbiting\nEarth.
750080
There are 192 member countries recognized by the United Nations, and 193 recognized by the state department of the U.S. There are currently 9 (the number is disputed) planets if you count Pluto and 8 if you don't, but that is just in our solar system. There are a lot more planets out there.
301206
The Satellite Situation Report from NASA's Goddard Space Flight Center. Dated September, 1997, the report counts 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.\n\nRussia leads the list in decayed objects (with a debris count close to 10,000) and comes in a close second (3897) to the United States (4018) for currently orbiting objects. Keep in mind that these figures are already a few years old.
33502
None, but there are nine planets in the solar system that Earth is part of.
83795
There are literally thousands of satellites in orbit capable of both receiving and transmitting radio signals. Some of their names are Telstar, Comsat (Communication satellites), Cosmos 1602, GOES 7, Landsat 5, NOAA 12, Radarsat, and Seasat 1 (weather satellites).
472607
planets orbit stars, satellites orbit planets
652664
The length of the earth's orbit (orbital circumference) is 924,375,700 kilometres according to wikipedia.
743465
The Sun is orbiting the center of the Milky Way galaxy at something like 200,000 miles per hour. At the same time the Earth is orbiting the Sun at 66,000 miles per hour. At the same time the Moon is orbiting the Earth at about 2,100 miles per hour. And when the Apollo space craft were orbiting the Moon, they did so at about 3,800 miles per hour.\n\nThe reason Earth can orbit the moving Sun is that both the Earth and Sun share the motion of the Sun around the galaxy. It is kind of like playing catch in a moving car. The fact that the car is driving 65 MPH is no problem for you to throw the ball back and forth just like you would in a parked car.
250001
The longest period artificial satellite I can think of is Ulysses, which orbits the Sun every 6.2 years.  If you're discussing one that orbits the Earth, I'm not sure.  There's SOHO which, at the L1 point, goes around the Sun with the Earth in one year.
992511
The International Space Station circles the planet approximately 16 times per day, traveling at 17,500 mph in an orbit varying 208 to 285 miles from Earth.
317449
Thousands. It's a little known fact that every satellite in orbit is manned by dozens of human workers, sometimes hundreds.
922163
On average the sun moves about 1 degree against the background stars per day (that's about 2 full moons!).  Since the Earth is on an elliptical orbit, we actually speed up and slow down, so it changes from day to day the exact amount.  \n\nIf you mean how many degrees above or along your local horizon, you need to give me your latitude and longitude to answer that.
310199
1 x Star ("Sol"/"The Sun")\n9 x planets\n140 x satellites (moons) [approx.]\nasteroids [1,000s]\ncomets [by guest appearance only]
1074194
Well, you need to contact NASA to see if they have any clue.  It's definitely more than my small brain can count and my wide eyes can see.  \nAccording to NASA's website "there have been about 4000 launches (some with multiple payloads) and my guess is that several hundred of the satellites involved are still active. Nine individual countries have launched satellites (USA, Russia, Japan, China, France, India, Israel, Australia, UK) as well as international consortia (ESA, the European Space Agency, being the most important of those). A large number of countries have enough money and could easily acquire the technology to launch satellites, but choose for economy and convenience to either have another country launch their payloads or to participate in the space projects of other nations."