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It depends on how high the satellite's orbit is.
Kepler's Third Law states that the further away a satellite is from its parent body, the longer its orbit takes. (This same law explains why our planet circles the Sun faster than, say, Jupiter.) Some examples:
- Geosynchronous (and geostationary) satellites, which lie about 22,200 miles above the Earth's surface, by definition take exactly one full day to complete one orbit.
- The International Space Station, by contrast, is only about 220 miles away -- 1/100th the distance -- and completes an orbit in just over 90 minutes.
- At the opposite extreme, our moon takes 27.3 days to orbit the Earth, from a whopping average of 239,000 miles away.
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Is there satellites that orbit mars if so how many?
2
How many satellites does the Iridium project use?
It uses 66 small satellites in low earth orbit
How many satellites orbit Venus'?
Venus has no natural satellites but probes have been sent their for many years now.
Do all satellites orbit the same direction?
No, all satellites do not orbit Earth at the same altitude. An good overview of this can be found on http://www.idirect.net/Company/Satellite-Basics/How-Satellite-Works.aspx. This overview reviews Low Earth Orbit, Medium Earth Orbit and Geostationary Orbits.
How many satellites travel around Mars?
10 satellites. Only 2, Phobos and Diemos2 - Phobos and Demos
How many satellites orbit the US?
Satellites cannot orbit the US; they orbit the Earth, and there are several thousand of them.
Why are there so many Iridium satellites in orbit?
It takes that many to provide complete coverage of the Earth, including the polar regions.
How many satellites orbit Saturn?
there is no satellites orbiting Saturn
Which satellite orbit the earth in a day?
There are many satellites that orbit the earth in a day or less. All of them are man made. The only real satellite that orbits the earth is the moon. That takes 28 days to complete a single orbit.
Is there satellites that orbit mars if so how many?
2
Medium earth orbit satellites?
With large number of low-earth-orbit satellites and the geo-synchronous orbit stuffed full of communications satellites, there aren't all THAT many "medium" altitude satellites. But there are some. The GPS navigation satellites, for example, are in highly inclined 12-hour orbits, and an unknown number of military "spy" satellites are in that middle range.
How many satellites has India sent to earth orbit?
10
How many miles up do picosat satellites orbit?
a lot
How many man made satellites orbit the moon?
2
How many artificial satellites are in orbit around earth?
yes
How many military satellites orbit earth?
Thousands, but the actual number is classified and varies from week to week as satellites de-orbit and new ones are launched.
How many satellites does the Iridium project use?
It uses 66 small satellites in low earth orbit
