Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun The point at which an orbiting object is closest to the center of mass of the body it is orbiting.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun astronomy The
point of abody 'selliptical orbit about thesystem 'scentre ofmass where thedistance between the body and the centre of mass is at itsminimum .
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun (astronomy) the point in an orbit closest to the body being orbited
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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For mean anomaly, I found that 359.4 degrees works well enough periapsis, which is perihelion, is ~in mid 2012; it is "among" the outer planets by approx 1992.
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The object will go into an orbit, which of course a periapsis precession, but in a pure two-body problem it is in an eternal orbit.
Early Galaxy Pinpoints Reionization Era | Universe Today 2009
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At periapsis, she cut the main thrusters, and activated the lateral jets.
365 tomorrows » 2007 » April : A New Free Flash Fiction SciFi Story Every Day 2007
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At periapsis, you cut the main thrusters, tap the port lateral jets, and turn the fighter around so you†™ re facing backward.
365 tomorrows » 2007 » April : A New Free Flash Fiction SciFi Story Every Day 2007
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How is it that at one moment Cassini can be found nearly at apoapsis, the farthest point from Saturn in an orbit, and within a day, be at periapsis, the closest point to Saturn in an orbit, when its orbital period is around 16 days?
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Descending through the ring plane just prior to periapsis, Imaging Science (ISS) acquired data for an
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This is the periapsis maneuver setting up for the Titan 50 encounter on Feb. 7.
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For your example, the object starting at 1 earth radius with a velocity of 463 m/s normal to the gravity vector would follow an elliptic orbit with a periapsis at 10.92 km from the black hole where it would have a velocity of 270,000 m/2 (as long as my calculations are correct).
Deltoid 2009
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This is the periapsis maneuver setting up for the Titan 50 encounter on Feb. 7.
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Descending through the ring plane just prior to periapsis, Imaging Science (ISS) acquired data for an
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