Constellation of date and the actual constellation that follows the sun

[Philosophaie]

Each month a different zodiac constellation follows around the sun day and night.

The constellation is in the house of the zodiac sign but the actual constellation is the zodiac before.

Example: the constellation of date is Libra but the constellation that follows the sun around is Virgo.

My question is what is the angle difference between the actual and when original constellation of date went around the sun.

 

[mkarger]

There are two major forms of signs. The Tropical zodiac and Sidereal zodiac

The Sidereal signs set their dates relative to the Earth's position within the Galaxy.

The Tropical signs are dependent upon the vernal equinox (seasons) to set dates.

The different stabilities of these two sources for the signs are causing them to drift apart over time.

Also, the Constellations do not travel around the sun. They appear to move because of the Earth's relative position which changes the backdrop behind the Sun.

 

[mkarger]

Oh and after checking wiki (I know, an excellent source), the two signs drift apart at 1.4 degrees per century.

 

[Philosophaie]

So you plug in any RA and DEC the regression will be 1.4 degrees per century. That will be its position however many centuries ago.

 

[pmacias]

I can provide a response to this content by explaining the concept of precession. The Earth's axis slowly wobbles over time, causing a gradual shift in the orientation of the Earth's rotational axis. This phenomenon is known as precession and it has a significant impact on the position of constellations in the night sky.

The angle difference between the actual and original constellation of date can be attributed to precession. Due to the Earth's axis shifting, the position of the sun in relation to the constellations has changed over time. This means that the dates associated with each zodiac constellation have also shifted.

For example, the constellation of Libra may have been the actual constellation that followed the sun during a specific month in the past, but due to precession, it is now the constellation of Virgo that follows the sun in that same month. The angle difference between the two constellations depends on the length of time since the original constellation was associated with that month.

It is important to note that precession is a gradual process and it takes approximately 26,000 years for the Earth's axis to complete one full wobble. This means that the angle difference between the actual and original constellation of date is constantly changing and will continue to do so over time.

In conclusion, the angle difference between the actual and original constellation of date is a result of precession, which is a natural phenomenon that affects the position of constellations in the night sky. I find this concept fascinating and it serves as a reminder of the ever-changing nature of our universe.