I know that planets have a "wandering" movement on the celestial sphere. I also know that their period around the Sun vary largely as compared with the period of the Earth (one sidereal year), according to Kepler's third Law. I'm also aware though that their translation planes are closely co-planar with the ecliptic.

Hence, there must exist a pattern of their position with respect to the fixed stars on the celestial sphere.

Can someone give some links, rules or charts on how to find out the celestial path of the planets on the celestial sphere over the year(s), with respect to the constellations of fixed stars?

  • $\begingroup$ Are you really asking about their positions with respect to the constellations, or about their positions with regard to the twelve divisions of the zodiac/ecliptic? These are very different questions. $\endgroup$ – fdb Sep 17 '16 at 0:04
  • $\begingroup$ From the perspective and point of view of someone being at the Earth, it is not the same question? $\endgroup$ – João Pimentel Ferreira Sep 17 '16 at 8:41
  • $\begingroup$ No. The signs of the zodiac are 12 divisions of 30 degrees each. They take their names (Aries etc.) from constellations, but these constellations do not overlap exactly with the 12 divisions. $\endgroup$ – fdb Sep 17 '16 at 9:12
  • $\begingroup$ Ok. Thank you for the clarification. Hence, since I suppose it would be easier to calculate and predict, I'd like to know the position with respect to the 12 divisions of the zodiac. $\endgroup$ – João Pimentel Ferreira Sep 17 '16 at 10:45
  • $\begingroup$ This is really more of an astrology question, but it's astronomical enough to belong here. What you're looking for is the ecliptic longitude, which you can compute at ssd.jpl.nasa.gov/?horizons, and you may also try astrological sites like astro.com $\endgroup$ – user21 Sep 17 '16 at 15:39

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