Does the center of the galaxy intersect the ecliptic?

In summary, the center of the galaxy intersects the ecliptic but it is a temporary coincidence and not exact. This can be seen by the fishhook curve of bright stars in Scorpio's tail, near the tip of the tail. The galactic center is located in Sagittarius territory, very close to the tip of the question mark-like curve of scorpion stars. Every quarter of a Galactic Year, which is approximately 50-60 million years, the solar system is 90 degrees around in its orbit and the center is not in the plane of the ecliptic. It is at around 60 degrees south ecliptic latitude and can be seen in the southern hemisphere. The plane of the ecliptic is tilted by
  • #1
Pjpic
235
1
Does the center of the galaxy intersect the ecliptic? If so, is it a temporary coincidence?
 
Astronomy news on Phys.org
  • #2
It is a temporary coincidence and it is not exact

You may recognize the fishhook curve of bright stars that is Scorpio's tail. It is near the tip of the tail, as I recall.
Scorpio borders on Sagittarius (not as easy to identify) and official sky maps show the galactic center in Sagittarius territory. But it is very close to the tip of that "question mark looking" hook-like curve of scorpion stars.

One quarter of a Galactic Year is what? something like 50 or 60 million years. So solar system will be some 90 degrees around in its orbit and Center will be totally NOT in the plane of the ecliptic.

It will be at around 60 degrees south ecliptic latitude. If you picture the ecliptic south pole? the "down" direction if you visualize planet orbits counterclockwise in a level plane?. then Center will be more close to south ecliptic pole.
Very roughly it will be not so far from the Earth south pole direction. It will be a southern hemisphere feature, not like today.

The plane of the ecliptic, essentially the plane of the solar system, is TILTED BY 60 DEGREES compared with Galactic plane.

Of course both Scorpio and Sagittarius are on the ecliptic (they are "zodiac" constellations).
I guess if you want to view that part of the sky where the Center is, it would be rising at midnight around 1 April.
And two hours earlier (10PM) around 1 May. I'm thinking northern hemisphere, e.g. US latitudes. You would go outdoors say four hours before midnight around 1 June and look just about due Southeast and Scorpio would be rising. Head first as I recall. So a bit later the tail would be completely up over the trees and you could basically point your finger at galactic Center. If you were out away from city lights and it was a dark night you could see the Milkyway all along the Horizon both the east and west of you. The plane of the Galaxy would more or less coincide with your ground plane that you are standing on. (Say if you are around 30 degrees north latitude).

Thats how things are oriented when the Center rises (to the SE) say around 10PM around 1 May. Glad you asked. It reminds me of some nice time in years past.
 
Last edited:
  • Like
Likes 1 person

What is the center of the Milky Way Ecliptic?

The center of the Milky Way Ecliptic refers to the central point around which our galaxy, the Milky Way, rotates. It is located in the constellation Sagittarius, approximately 26,000 light years away from Earth.

What is the significance of the center of the Milky Way Ecliptic?

The center of the Milky Way Ecliptic is significant because it is the focal point of our galaxy's rotation. It is also home to a supermassive black hole, known as Sagittarius A*, which has a mass equivalent to about 4 million suns.

How is the center of the Milky Way Ecliptic studied?

Scientists study the center of the Milky Way Ecliptic using a variety of telescopes and instruments, including radio, infrared, and X-ray telescopes. They also use computer simulations and models to better understand the dynamics and structure of this region.

What is the relationship between the center of the Milky Way Ecliptic and the Earth's orbit?

The center of the Milky Way Ecliptic is not directly related to the Earth's orbit. However, the Earth and the other planets in our solar system do orbit around the center of the Milky Way galaxy, which includes the center of the Milky Way Ecliptic.

Are there any planets or other objects located at the center of the Milky Way Ecliptic?

Currently, there are no known planets or other objects located at the exact center of the Milky Way Ecliptic. However, there are many stars and other celestial bodies in this region, including the aforementioned supermassive black hole Sagittarius A*.

Similar threads

  • Astronomy and Astrophysics
Replies
2
Views
2K
  • Astronomy and Astrophysics
Replies
2
Views
970
  • Astronomy and Astrophysics
Replies
2
Views
2K
  • Astronomy and Astrophysics
5
Replies
142
Views
113K
Replies
31
Views
3K
  • Astronomy and Astrophysics
Replies
3
Views
1K
  • Astronomy and Astrophysics
Replies
4
Views
1K
Replies
11
Views
1K
  • Astronomy and Astrophysics
Replies
6
Views
1K
  • Astronomy and Astrophysics
Replies
7
Views
1K
Back
Top