| 词汇 | periapsis |
| 释义 | BETA Examples of periapsisperiapsis isn’t in the Cambridge Dictionary yet. You can help! As a planet approaches periapsis, the planet will increase in speed, or velocity. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Particularly at each periapsis, the object experiences atmospheric drag, losing energy. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. For near-circular orbits, it is hard to find the periapsis in the first place (and truly circular orbits have no periapsis at all). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The last time they were at periapsis was in 1836. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The ecliptic longitudes of the periapsis of the satellite and the planet are locked. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The initial, high eccentricity orbits may also be a source of gravitational waves, emitting a short burst as the compact object passes through periapsis. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It had a periapsis of 171 km and an apoapsis of 3,524 km and an orbital period of 619 minutes. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These variations are connected with the variations of the ring width, which is 19.7 km at the periapsis and 96.4 km at the apoapsis. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. When gradually making an elliptic orbit smaller, it means applying thrust each time when near the periapsis. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. With increasing release height the orbit becomes less eccentric as both periapsis and apoapsis increase, becoming circular at geostationary level. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The angular rate is faster nearer periapsis and slower near apoapsis. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Thereafter, the periapsis was allowed to rise to a maximum of and then fall, to conserve fuel. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The point on the orbit closest to the attracting body is the periapsis. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. When gradually making an elliptic orbit larger, it means applying thrust each time when near the periapsis. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. So to get the most kinetic energy from the burn, the burn must occur at the vehicle's maximum velocity, at periapsis. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Adding the argument of periapsis to the longitude of the ascending node gives the longitude of the periapsis. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A line drawn from periapsis to apoapsis is the line-of-apsides. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. For the most efficient example mentioned above, targeting an inclination at apoapsis also changes the argument of periapsis. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A straight line connecting the periapsis and apoapsis is the "line of apsides". From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. |
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