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mathematics, the eccentricity of a conic section is a non-negative real number that uniquely characterizes its shape. One can think of the eccentricity as a measure...11 KB (1,318 words) - 21:06, 21 August 2024
treated as perturbations of the hypothetical unperturbed motion of the planet or satellite around its primary body. In methods of general perturbations, general...21 KB (2,419 words) - 23:32, 13 August 2024
26.33 km/s (58900 mph). The mean eccentricity of an object is the average eccentricity as a result of perturbations over a given time period. Neptune...25 KB (2,767 words) - 19:36, 2 July 2024
Orbit (section Perturbations)near or within that planet. Owing to mutual gravitational perturbations, the eccentricities of the planetary orbits vary over time. Mercury, the smallest...57 KB (8,170 words) - 14:39, 18 July 2024- artificial satellite in which perturbations have been minimized by careful selection of the orbital parameters. Perturbations can result from natural drifting...33 KB (3,270 words) - 04:44, 28 May 2024
Milankovitch cycles (section Orbital eccentricity)Milutin Milanković. In the 1920s, he hypothesized that variations in eccentricity, axial tilt, and precession combined to result in cyclical variations...49 KB (5,223 words) - 10:23, 29 July 2024
List of orbits (section Eccentricity classifications)Above 800 km, solar radiation pressure causes the largest orbital perturbations. However, the atmospheric drag strongly depends on the density of the...31 KB (3,471 words) - 19:19, 24 February 2024- A real orbit and its elements change over time due to gravitational perturbations by other objects and the effects of general relativity. A Kepler orbit...24 KB (3,177 words) - 13:09, 17 August 2024
to describe the three quantities: proper semimajor axis (ap), proper eccentricity (ep), and proper inclination (ip). The proper elements can be contrasted...5 KB (525 words) - 14:32, 23 July 2021
is a Kepler orbit with an eccentricity of less than 1; this includes the special case of a circular orbit, with eccentricity equal to 0. In a stricter...18 KB (2,715 words) - 23:24, 26 August 2024
Orbital mechanics (section Perturbations)harmonics of the gravity field introduce additional perturbations Lunar and solar gravity perturbations alter the orbits Atmospheric drag reduces the semi-major...41 KB (5,821 words) - 22:06, 8 September 2024
Molniya orbit (section Eccentricity)lifespan of approximately 1.5 years, as their orbits were disrupted by perturbations, and they had to be constantly replaced. The succeeding series, the...28 KB (3,119 words) - 11:14, 6 September 2024
Molniya (satellite) (section Eccentricity)lifespan of approximately 1.5 years, as their orbits were disrupted by perturbations, as well as deteriorating solar arrays and they had to be constantly...14 KB (1,302 words) - 11:14, 6 September 2024
parameters such as argument of periapsis and the orbital eccentricity evolve, due to higher-order perturbations in the Earth's gravitational field, the pressure...14 KB (1,629 words) - 00:10, 31 July 2024
this instability region, solar perturbations at apoapse cause the moons in this region to acquire large eccentricities that lead to collisions or ejection...8 KB (570 words) - 07:06, 25 February 2024- radiation pressure will in general perturb the eccentricity (i.e. the eccentricity vector); see Orbital perturbation analysis (spacecraft). For some missions...14 KB (1,754 words) - 15:24, 26 May 2024
- non-inertial. To quantify the effects of the perturbations in this frame, one should consider the ratio of the perturbations to the main body gravity i.e. χ A =...13 KB (1,385 words) - 00:06, 9 September 2024
an ellipse is related to the semi-minor axis's length b through the eccentricity e and the semi-latus rectum ℓ {\displaystyle \ell } , as follows: b =...17 KB (2,374 words) - 14:15, 20 August 2024
planet could be on a lower eccentricity, low inclination orbit, with eccentricity e < 0.18 and inclination i ≈ 11°. The eccentricity is limited in this case...179 KB (19,082 words) - 08:07, 10 September 2024
524 astronomical units (228 million km) (12.673 light minutes), and an eccentricity of 0.0934. The planet orbits the Sun in 687 days and travels 9.55 AU...14 KB (1,708 words) - 15:02, 23 August 2024
- Academy. The perturbations of the moon necessarily involved—by the principle of action and reaction—corresponding though smaller perturbations of the earth;
- Mathematica 8 (1): 1-36. It was not until 1748 that any computation of the perturbations of Jupiter and Saturn, in accordance with the theory of gravitation
- more stars, the more likely the system is to fall apart from internal perturbations. The basic definition looks like this: Barycenter "Name" { RA <number>