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- Q17104931 subject Q7464090.
- Q17104931 abstract "Nodal precession is the precession of the orbital plane of a satellite around the rotation axis of an astronomical body such as Earth. This precession is due to the non-spherical nature of a spinning body, which creates a non-uniform gravitational field. The following discussion relates to low earth orbit of artificial satellites which have no describable effect on the motion of the Earth. The nodal precession of more massive, natural satellites such as the Moon is more complex. Around a spherical body, an orbital plane would remain fixed in space around the central body. However, most bodies rotate, which causes an equatorial bulge. This bulge creates a gravitational effect that causes orbits to precess around the rotational axis of the central body.The direction of precession is opposite the direction of revolution. For a typical prograde orbit around Earth ( ie. in the direction of central body rotation ) , the longitude of the ascending node decreases, i.e., node precesses westward. If the orbit is retrograde, this increases the longitude of the ascending node, i.e., node precesses eastward. This nodal progression enables Sun-synchronous orbits to maintain approximately constant angle relative to the Sun.".
- Q17104931 thumbnail Nodal_precession2.png?width=300.
- Q17104931 wikiPageExternalLink primer91.htm.
- Q17104931 wikiPageExternalLink nodal_regression.html.
- Q17104931 wikiPageWikiLink Q104225.
- Q17104931 wikiPageWikiLink Q1440352.
- Q17104931 wikiPageWikiLink Q174241.
- Q17104931 wikiPageWikiLink Q18373.
- Q17104931 wikiPageWikiLink Q212750.
- Q17104931 wikiPageWikiLink Q2269302.
- Q17104931 wikiPageWikiLink Q270897.
- Q17104931 wikiPageWikiLink Q312021.
- Q17104931 wikiPageWikiLink Q33680.
- Q17104931 wikiPageWikiLink Q405.
- Q17104931 wikiPageWikiLink Q4112212.
- Q17104931 wikiPageWikiLink Q507546.
- Q17104931 wikiPageWikiLink Q622176.
- Q17104931 wikiPageWikiLink Q7464090.
- Q17104931 wikiPageWikiLink Q830843.
- Q17104931 wikiPageWikiLink Q83094.
- Q17104931 comment "Nodal precession is the precession of the orbital plane of a satellite around the rotation axis of an astronomical body such as Earth. This precession is due to the non-spherical nature of a spinning body, which creates a non-uniform gravitational field. The following discussion relates to low earth orbit of artificial satellites which have no describable effect on the motion of the Earth. The nodal precession of more massive, natural satellites such as the Moon is more complex.".
- Q17104931 label "Nodal precession".
- Q17104931 depiction Nodal_precession2.png.