Did old astronomers beleive that the full moon marked the beginning,middle or end of opposite constellation?

why so for this?



and when and where did they do this?



Did old astronomers beleive that the full moon marked the beginning,middle or end of opposite constellation?This question is unclear. The Full Moon IS the center of the opposite constellation, (well regarded as anyway), the others head off towards the beginning and the end of the opposite constellation. Try and make yourself more clear. My answer was merely a guess. :)Did old astronomers beleive that the full moon marked the beginning,middle or end of opposite constellation?I'm an old astronomer (middle aged, anyway).



The full moon is generally regarded to be the middle of the lunar cycle.



I don't know what you mean by "end of opposite constellation".Did old astronomers beleive that the full moon marked the beginning,middle or end of opposite constellation?I am also old but not an astronomer like Cosmo. My modest knowledge is in that I am so old that when I was a young man, I navigated with a sextant!



I think your question is about the zodiac and its twelve constellations. No, it has nothing to do with the moon but rather the sun.



The constellations are the twelve pictures in the sky where the sun rose thousands of years ago in the sky in relation to the starry background.



For each day, the sun rises slightly further in the sky and that is called the sun's right ascension and defined by the Babylonians as being one degree. That's right, we have 360 degrees because the Babylonians believed there was 360 days in a year. Only wrong by 5.25 days.



The reason the sun isn't anymore in the constellation it was before is called the precession of the equinoxes. It is because the axis of the earth is not constant and rotates.