| But the orbit is elliptical, and when the Moon is near perigee, it moves along its orbit more swiftly than it does when it is near apogee. |
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| Contrasting full moons seen near perigee and apogee indicate how much the apparent size of the Moon varies each month. |
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| The satellite will thus be altering its speed at different times in its orbit and will have a maximum speed at perigee and minimum at apogee. |
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| Static information such as semi-major axis of ellipse, apogee and perigee altitudes, and anomalistic and nodal periods of satellite orbits. |
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| Maximum gravitation force occurs when a syzygy and perigee occur on the same day as perihelion. |
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| Whereas the synodic period is 29.53 days, it takes 27.5 days for the moon to move in its elliptical orbit from perigee to perigee. |
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| Its low perigee meant that the orbit would degrade rapidly due to atmospheric friction. |
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| In one anomalistic month, the Moon describes its orbit from perigee to perigee, the point at which it is nearest to Earth. |
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| In a second class of orbit, the perigee and apogee heights are respectively 26,000 and 46,000 km, giving a 24 h orbital period. |
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| The progress of the Moon from one perigee to the next is known as the anomalistic lunar cycle and takes 27 days, 13 hours and 18 minutes. |
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| In most cases, the apogee and perigee are given as the highest and lowest points of a space object's orbit from the Earth's surface. |
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| The point at which the satellite is closest to the Earth is called perigee. |
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| However, supermoon came to denote the more-restrictive meaning of a full moon at perigee. |
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| The satellite is in a graveyard orbit, at a perigee of 400 km above the geostationary orbit. |
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| At perigee, the moon is around 31,000 miles closer than when it is furthest away from the Earth. |
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| A few taps on the pocket calculator show that the Moon's speed in its geocentric orbit is around 2,300 miles per hour, although variable between perigee and apogee. |
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| An anomalistic lunar month is the lunar equivalent to the solar anomalistic year which indicates the passage of the sun around the earth from perigee to perigee. |
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| The most favourable conditions for a total eclipse are when the Moon is at its perigee, Earth is farthest from the Sun and when the Sun is observed near zenith. |
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| It is found that the maximum inclination at the perilune between the probe's orbit plane and the Moon's orbit plane is restricted by the heights of the perigee and the perilune of the free return trajectory. |
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| Clairaut later withdrew this proposal and showed in a new calculation that the inverse-square law was perfectly adequate for explaining the motion of the Moon's perigee. |
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| A satellite's orbital velocity will increase as it moves toward perigee. |
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| Practically all orbits around the Earth follow elliptical paths, descending to a low point, called the perigee, and climbing to a high point, called the apogee. |
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| If the Moon is near perigee during a spring tide, the water level at high tide can be as much as 16 metres higher than at low tide at a place called Minas Basin. |
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| When the Moon is closest, at perigee, the range increases, and when it is at apogee, the range shrinks. |
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| The perigean tides are the spring tides that occur soon after the Moon passes its perigee. |
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| In October 2012, a Briz-M rocket body exploded above north Atlantic Ocean as it approached its perigee. |
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| On a brighter note, and much more beautiful, the moon glides elliptically around the Earth, and once a month the moon and the planet have a nearest moment, called perigee. |
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