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Not much. 100 miles up is within the outer boundaries of our atmosphere, and something at that altitude would inevitably be slowed down by friction and would fall out of orbit. So the only things in orbit at 100 miles altitude is stuff that has fallen out of a higher orbit and is on the way down.
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Is an astronaut circling the earth in a space capsule in not in the biosphere?
As the biosphere is contained entirely within the troposphere (lowest layer of the atmosphere), an astronaut in orbit is far over 100 miles above the highest portion of the biosphere.
How high is the stratosphere above the ground?
The stratosphere is situated between about 10 km (6 miles) and 50 km (31 miles) altitude above the surface at mid-latitudes, while at the poles it starts at about 8 km (5 miles) altitude
How does an artificial satellite stay in orbit once correctly placed above Mars?
They usually get their energy from the Sun, but they may also have a nuclear reactor. That's how they get their energy; how they work in detail would depend on what they are supposed to do. There are satellites for many different purposes.
If an astronaut is weightless orbiting the earth at 100 miles up would you experience weightlessness at the top of a 100 mile step ladder What equations would prove or disprove?
The person on the ladder would not feel weightless because they are not in orbit, they are simply at a high altitude. If they let go, they would fall straight down towards the earth's center just as any other object which is being pulled on by gravity.Orbit is achieved through velocity. With enough thrust, a rocket is able to propel an astronaut to a speed which will send him beyond the earth's gravitational field and straight into space (ie: "escape velocity"). However, by controlling the level of thrust and angle of inclination, the astronaut can be placed in an area of space that is somewhere "in-between" the pull of earth's gravity and the escape velocity. This is called "orbital velocity". The astronaut achieves ORBIT, and he is in a constant free-fall circling around the earth: not quite fast enough to escape the earth's gravity, but not so slow that he falls back to earth.When a spacecraft needs to return to earth, thrusters are fired in the direction of orbit, which decreases forward speed, and allows the craft to return to earth via the earth's gravitational field with help from atmospheric drag.
What is sun-synchronous polar orbit?
A Sun-synchronous orbit (sometimes incorrectly called a heliosynchronous orbit) is a geocentric orbit which combines altitude and inclination in such a way that an object on that orbit ascends or descends over any given point of the Earth's surface at the same local mean solar time. The surface illumination angle will be nearly the same every time. This consistent lighting is a useful characteristic for satellites that image the Earth's surface in visible or infrared wavelengths (e.g. weather and spy satellites) and for other remote sensing satellites (e.g. those carrying ocean and atmospheric remote sensing instruments that require sunlight). For example, a satellite in sun-synchronous orbit might ascend across the equator twelve times a day each time at approximately 15:00 mean local time. This is achieved by having the osculating orbital plane recess (rotate) approximately one degree each day with respect to the celestial sphere, eastward, to keep pace with the Earth's revolution around the Sun.[1]The uniformity of Sun angle is achieved by tuning the inclination to the altitude of the orbit (details in section "Technical details") such that the extra mass near the equator causes orbital plane of the spacecraft to precess with the desired rate: the plane of the orbit is not fixed in space relative to the distant stars, but rotates slowly about the Earth's axis. Typical sun-synchronous orbits are about 600-800 km in altitude, with periods in the 96-100 minute range, and inclinations of around 98° (i.e. slightly retrograde compared to the direction of Earth's rotation: 0° represents an equatorial orbit and 90° represents a polar orbit).[1]Special cases of the sun-synchronous orbit are the noon/midnight orbit, where the local mean solar time of passage for equatorial longitudes is around noon or midnight, and the dawn/dusk orbit, where the local mean solar time of passage for equatorial longitudes is around sunrise or sunset, so that the satellite rides the terminator between day and night. Riding the terminator is useful for active radar satellites as the satellites' solar panels can always see the Sun, without being shadowed by the Earth. It is also useful for some satellites with passive instruments which need to limit the Sun's influence on the measurements, as it is possible to always point the instruments towards the night side of the Earth. The dawn/dusk orbit has been used for solar observing scientific satellites such as Yohkoh, TRACE,Hinode and Proba-2, affording them a nearly continuous view of the Sun.[citation needed]Sun-synchronous orbits are possible around other oblate planets, such as Mars. But for example Venus is too spherical for having a satellite in sun-synchronous orbitA polar orbit is an orbit in which a satellite passes above or nearly above both poles of the body (usually a planet such as the Earth, but possibly another body such as the Sun) being orbited on each revolution. It therefore has an inclination of (or very close to) 90 degrees to the equator. Except in the special case of a polar geosynchronous orbit, a satellite in a polar orbit will pass over the equator at a different longitude on each of its orbits.Polar orbits are often used for earth-mapping, earth observation, and reconnaissance satellites, as well as for some weather satellites. The Iridium satellite constellation also uses a polar orbit to provide telecommunications services. The disadvantage to this orbit is that no one spot on the Earth's surface can be sensed continuously from a satellite in a polar orbit.It is common for near-polar orbiting satellites to choose a sun-synchronous orbit: meaning that each successive orbital pass occurs at the same local time of day. This can be particularly important for applications such as remote sensing of the atmospheric temperature, where the most important thing to see may well be changes over time, which you do not want to see aliased onto changes in local time. To keep the same local time on a given pass, it is desirable for the orbit to be as short as possible, which is to say as low as possible. However, very low orbits of a few hundred kilometers would rapidly decay due to drag from the atmosphere. A commonly used altitude is approximately 1000 km; this produces an orbital period of about 100 minutes.[1] The half-orbit on the sun side then takes only 50 minutes, during which local time of day does not greatly vary.To retain the sun-synchronous orbit as the Earth revolves around the sun during the year, the orbit of the satellite must precess at the same rate. Were the satellite to pass exactly over the pole, this would not happen. But because of the Earth's equatorial bulge, an orbit inclined at a slight angle is subject to a torque which causes precession; it turns out that an angle of about 8 degrees from the pole produces the desired precession in a 100 minute orbit.[1]A satellite can hover over one polar area a large part of the time, albeit at a large distance, using a polar highly elliptical orbit with its apogee above that area. This is the principle behind aA polar orbit is an orbit in which a satellite passes above or nearly above both poles of the body (usually a planet such as the Earth, but possibly another body such as the Sun) being orbited on each revolution. It therefore has an inclination of (or very close to) 90 degrees to the equator. Except in the special case of a polar geosynchronous orbit, a satellite in a polar orbit will pass over the equator at a different longitude on each of its orbits.Polar orbits are often used for earth-mapping, earth observation, and reconnaissance satellites, as well as for some weather satellites. The Iridium satellite constellation also uses a polar orbit to provide telecommunications services. The disadvantage to this orbit is that no one spot on the Earth's surface can be sensed continuously from a satellite in a polar orbit.It is common for near-polar orbiting satellites to choose a sun-synchronous orbit: meaning that each successive orbital pass occurs at the same local time of day. This can be particularly important for applications such as remote sensing of the atmospheric temperature, where the most important thing to see may well be changes over time, which you do not want to see aliased onto changes in local time. To keep the same local time on a given pass, it is desirable for the orbit to be as short as possible, which is to say as low as possible. However, very low orbits of a few hundred kilometers would rapidly decay due to drag from the atmosphere. A commonly used altitude is approximately 1000 km; this produces an orbital period of about 100 minutes.[1] The half-orbit on the sun side then takes only 50 minutes, during which local time of day does not greatly vary.To retain the sun-synchronous orbit as the Earth revolves around the sun during the year, the orbit of the satellite must precess at the same rate. Were the satellite to pass exactly over the pole, this would not happen. But because of the Earth's equatorial bulge, an orbit inclined at a slight angle is subject to a torque which causes precession; it turns out that an angle of about 8 degrees from the pole produces the desired precession in a 100 minute orbit.[1]A satellite can hover over one polar area a large part of the time, albeit at a large distance, using a polar highly elliptical orbit with its apogee above that area. This is the principle behind aA polar orbit is an orbit in which a satellite passes above or nearly above both poles of the body (usually a planet such as the Earth, but possibly another body such as the Sun) being orbited on each revolution. It therefore has an inclination of (or very close to) 90 degrees to the equator. Except in the special case of a polar geosynchronous orbit, a satellite in a polar orbit will pass over the equator at a different longitude on each of its orbits.Polar orbits are often used for earth-mapping, earth observation, and reconnaissance satellites, as well as for some weather satellites. The Iridium satellite constellation also uses a polar orbit to provide telecommunications services. The disadvantage to this orbit is that no one spot on the Earth's surface can be sensed continuously from a satellite in a polar orbit.It is common for near-polar orbiting satellites to choose a sun-synchronous orbit: meaning that each successive orbital pass occurs at the same local time of day. This can be particularly important for applications such as remote sensing of the atmospheric temperature, where the most important thing to see may well be changes over time, which you do not want to see aliased onto changes in local time. To keep the same local time on a given pass, it is desirable for the orbit to be as short as possible, which is to say as low as possible. However, very low orbits of a few hundred kilometers would rapidly decay due to drag from the atmosphere. A commonly used altitude is approximately 1000 km; this produces an orbital period of about 100 minutes.[1] The half-orbit on the sun side then takes only 50 minutes, during which local time of day does not greatly vary.To retain the sun-synchronous orbit as the Earth revolves around the sun during the year, the orbit of the satellite must precess at the same rate. Were the satellite to pass exactly over the pole, this would not happen. But because of the Earth's equatorial bulge, an orbit inclined at a slight angle is subject to a torque which causes precession; it turns out that an angle of about 8 degrees from the pole produces the desired precession in a 100 minute orbit.[1]A satellite can hover over one polar area a large part of the time, albeit at a large distance, using a polar highly elliptical orbit with its apogee above that area. This is the principle behind a
LEO satellites orbit the Earth with an altitude as low as miles?
A low Earth orbit (LEO) is an orbit around Earth as low as 100 miles and up to 1,240 miles close to the Earth's poles.
How many miles for earth to orbit around the sun?
Earth's distance from the Sun is about 93 million miles; since the orbit is very nearly circular, you can use the formula for a circle (circumference = 2 x pi x radius).
How many times can earth orbit the sun in 100 years?
Earth takes 1 year for 1 orbit around the sun. So, in 100 years, Earth can orbit the sun 100 times.
Is an astronaut circling the earth in a space capsule in not in the biosphere?
As the biosphere is contained entirely within the troposphere (lowest layer of the atmosphere), an astronaut in orbit is far over 100 miles above the highest portion of the biosphere.
What are the four orbit levels for satellite systems?
LEO (Low-Earth-Orbit)-100 to 1000 miles out • Used for wireless e-mail, special mobile telephones, pagers, spying, videoconferencing MEO (Middle-Earth-Orbit)-1000 to 22,300 miles • Used for GPS (global positioning systems) and government GEO (Geosynchronous-Earth-Orbit)-22,300 miles • Always over the same position on earth (and always over the equator) • Used for weather, television, government operations HEO (Highly Elliptical Earth orbit)-satellite follows an elliptical orbit • Used by the military for spying and by scientific organizations for photographing celestial bodies
Space orbiting telescopes are found where?
Usually orbiting Earth, that is, in an orbit around Earth, but fairly close to Earth - a few 100 km. distance from Earth's surface, at most.Usually orbiting Earth, that is, in an orbit around Earth, but fairly close to Earth - a few 100 km. distance from Earth's surface, at most.Usually orbiting Earth, that is, in an orbit around Earth, but fairly close to Earth - a few 100 km. distance from Earth's surface, at most.Usually orbiting Earth, that is, in an orbit around Earth, but fairly close to Earth - a few 100 km. distance from Earth's surface, at most.
Is there gravity where space shuttles orbit?
A very low level, called microgravity, that's a small fraction of normal gravity. Astronauts feel weightless, by comparison. Space shuttles orbit at a distance of 100-200 miles above the Earth. The shuttle is actually falling toward the Earth all the time, but the speed of its orbit keeps it from falling any closer. Don't confuse gravity with weight. The Earth's gravity extends to the outer reaches of the Solar System. Earth's gravity is what keeps the satellites which are orbiting the Earth from flying away into space. "Weight" is measure of the local acceleration due to gravity. When a person is in orbit, inside a shuttle, he is falling along with the shuttle at about 17,000 miles per hour. The mass of the shuttle and the mass of the person are attracting each other with 'micro-gravity' which is a million times less than the gravity of the Earth.
Earth atmosphhere extends about how many miles in kilometers?
It extends about 372 miles above the Earth's surface.
Does any planet cross the earth's orbit?
There are no planets that cross the earth's orbit. Pluto (dwarf, or minor planet) and Neptune are the only planets whose orbits cross. However there are over 100 asteroids (minor planets) that cross the earth's orbit.
How far can shooting stars be from earth to still be visible?
Shootings stars, also known as meteorites, reside at 100 miles above the Earths' surface. Typically, though ,the farthest you can see a shooting star from Earth is 70 miles away.
Can show us a diagram of the moon sun and earth orbit?
Draw a diagram using compasses. The Sun is at the centre and the Earth's orbit could have a radius of 4 inches. Put a spot somewhere on the orbit to represent the Earth. Then the Moon's orbit is a small circle round the Earth with a radius of 1/100 inch, about the size of a full stop.
What is the thickness of Earth's atmosphere within 20 miles?
100 100
