Do all the planets rise exactly in the east and set exactly in the west, or is this a rare thing
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Do all the planets rise exactly in the east and set exactly in the west, or is this a rare thing

[From: ] [author: ] [Date: 11-04-22] [Hit: ]
Mars, Mercury, and Venus are west of the Sun near the ecliptic. All the planets except for Pluto lie along the ecliptic, Pluto has a rather large inclination so it can be quite aways from the ecliptic. Normally the planets are not grouped quite as close together.......

http://en.wikipedia.org/wiki/Inclination

Heres a list of the inclinations of the planets, Pluto is the odd man out with an inclination of 17 degrees. Although it isn't considered to be a planet so it is not listed.

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The planets Jupiter, Mars, Mercury, and Venus are west of the Sun near the ecliptic. All the planets except for Pluto lie along the ecliptic, Pluto has a rather large inclination so it can be quite aways from the ecliptic. Normally the planets are not grouped quite as close together. In a few weeks Mercury will be east of the Sun, Venus will be too close to the Sun to see. Jupiter will continue moving westward of the Sun rising as the "morning star". Mars will take longer to leave the Suns vicinity. Saturn is the only naked eyed planet not near the Sun, it is in the constellation Virgo,and is visible all night long.

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Very few things rise "exactly in the east', and none can do it regularly,
because " exactly East" changes every night due to the tilt in Earth's axis
relative to its orbital plane.
Most of the planets will rise pretty close to the 'plane of the ecliptic' (Wiki it.),
but their 'orbital plane's, (Wiki that too), do differ slightly, one from another.

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The planets all follow pretty closely an imaginary line across the sky called the 'ecliptic.' It extends generally from just south of due east to just south of due west.

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Yes, it is relatively rare , even for the Sun, to rise directly east at azimuth 90 degrees and set directly west at azimuth 270 degrees. happens only twice year at or around the equinoxes. The azimuth the sun rises and sets at is somewhat latitude dependent, The 24 hour period when there is approximately 12 hours between sunrise, sunset and another 13 hours until the next sunrise is latitude dependent, For central OK those dates are March 16 and March 17 and September 26. This happens mainly because of the tilt of the Earth's axis. The rate that the sun moves along the horizon is fastest around the equinoxes and slowest around the solstices. The orientation of where the projections of Earth's rotational axis relative to the sun is changing at a faster rate around the equinoxes

Most stars never rise and set directly east because their declination (celestial latitude)is too great. declination (celestial latitude), Where the planets rise and set gets even more complicated because you have to account for the the speed the planet is moving along its orbit as well as accounting for the position of the Earth with relation to the other planet and its orbital speed. This makes declination and right ascension and right ascensions celestial longitude) change as the other planet travels along its orbit at the same time the Earth is traveling along its orbit. The azimuth, declination and right ascension of a planet changes constantly because the orientation of the Earth's rotational axis changes and the orbital speeds differ, and the tilt of each planet's orbital plane from the ecliptic is different for each planet, and some planets have orbits that are much more eccentric than Earth's orbit is
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