Hi Ernst and everyone,
I think I’ve found an astronomical explanation for the Solar & Lunar halves, by observing our galaxy.
From our perspective on Earth, the center of our galaxy stretches through Scorpio and Sagittarius - the Galactic Center.
Our galaxy has two major spiral arms. And our Solar System and therefore Earth is located in a small branch (called Orion Spur) between the two major spiral arms of our galaxy.
From our perspective on Earth, if we would look at the center of our galaxy and ignore the true orientation of the galactic plane, two arms are emerging from the center of our galaxy in opposite directions across the sky.
One arm appears to emerge from the Galactic Center from the region between Libra and Scorpio, and the other one seems to emerge from the region between Capricorn and Aquarius.
So, the region between Libra and Scorpio points approximately toward the apparent starting point of one of our galaxy’s spiral arms.
The region between Capricorn and Aquarius points approximately toward the apparent starting point of the other spiral arm.
When I say an arm starts/emerges, I mean that from Earth’s perspective, the arm appears to extend into or emerge from that region of the sky.
I’m talking about how they appear visually from Earth, not how they're actually structured in 3D space.
The direction of movement
From the perspective of the North Galactic Pole, our galaxy rotates clockwise.
Because our galaxy rotates clockwise, spiral arms and stars inside it move across the sky in that direction.
Our Solar System orbits the Galactic Center in this same clockwise direction.
From our point of view, the 2 major arms of our galaxy both move from the region between Cancer and Leo toward the region between Capricorn and Aquarius.
One arm moves from Leo to Capricorn.
The other arm moves from Cancer to Aquarius.
From Earth’s perspective, the movement of our galaxy’s spiral arms is:
- from Leo to Capricorn - Solar - moves forward
- from Cancer to Aquarius - Lunar - moves backwards
I’ve attached two images of our galaxy to help you better understand this visually.
In the image “Galaxy 2.png” I’ve added some graphics, but my drawings are not accurate at all, they are just for better understanding.
I made this observation about everything I wrote here a while ago, but in the last few days, while contemplating this subject, I had another insight. And I think it's important to share it.
This is another observation about our galaxy’s arms.
So… this might be a bit of a wild idea, but I think that:
- the galaxy arm from Leo to Capricorn - is connected to Indra - Solar
- the galaxy arm from Cancer to Aquarius - is connected to Agni - Lunar
The reasoning began with a reflection on Nakshatras and how Vishakha Nakshatra (that is between Libra and Scorpio) is ruled by Indra-Agni. Maybe this Nakshatra has both Indra and Agni because from our point of view, in this region of the sky, the 2 arms of our galaxy overlap (Indra’s galaxy arm and Agni’s galaxy arm) and because this region marks the starting point of one of the galaxy’s arms.
Agni as a fire god, would be lunar in the sense of the inner transformational fire. (Agni from Krittika Nakshatra is opposite Vishakha)
Although this last hypothesis about Indra-Agni may appear completely farfetched, I thought I should share it also.
I’m not an astrologer, but I love astrology and I reflect on it daily. I hope this was useful.
Thanks for writing this. Being interested in astrology started with me needing the understand the basic astronomy.
I read it and didn't exactly understand...but that usually happens when I learn about astronomy for the first time! It isn't obvious and I'll need to wrap my head around it, but I'm looking forward to digging into this!
Irina, I love this. Thank you for posting this.
This could be a valid point, but for it to be useful we would have to be able to calculate where those two arms intersect the ecliptic, exactly, we would have to see if they intersect at exactly 180 degrees from each other. Then we could create a sidereal ayanamsa for those points, test it, and see. And yes, then we also have an explanation for vishakha having two lords, we also have this using an ayanamsa with krittika at the vernal equinox, which some astrologers use.