Make Sense of our Solar System's Place in the Universe

In summary, when thinking about a solar system, the star is typically thought of as being orbited by smaller planets. However, stars themselves also orbit a common center of mass within a galaxy. The picture of Andromeda shows this concept, with all the stars circling the core of the galaxy. The bright light in the middle is the core of the galaxy, which is a densely populated area and may also contain a black hole. The other stars and bright object in the picture are other galaxies and foreground Milky Way stars picked up by the telescope. The bright object is a companion galaxy to Andromeda.
  • #1
DB
501
0
When I think of a solar system I think of a star being orbited by smaller planets.But if planets orbit stars, what do stars orbit?

Like in this picture of Andromeda:

http://www.timelessmyths.com/classical/gallery/stars/andromeda.jpg

What are all those stars circling? What is that bright light in the middle?

One more Question: If stars are what make up galaxies, what are those stars that seem to be out of the orbit and that bright object on the bottom of the picture?

Ty
 
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  • #2
DB said:
When I think of a solar system I think of a star being orbited by smaller planets.But if planets orbit stars, what do stars orbit?
The common center of mass of the the other stars. Or in other words, the mass of stars that are closer to the center of the galaxy tha they are.
Like in this picture of Andromeda:

http://www.timelessmyths.com/classical/gallery/stars/andromeda.jpg

What are all those stars circling? What is that bright light in the middle?
That is the core of the Galaxy. it is just a more densely populated area of the galaxy, though many galaxies do also harbor black holes at their centers.
One more Question: If stars are what make up galaxies, what are those stars that seem to be out of the orbit and that bright object on the bottom of the picture?

Ty

Those are other, further galaxies that the telescope picked up in the background.
 
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  • #3
Janus said:
Those are other, further galaxies that the telescope picked up in the background.
And foreground Milky Way stars. That bright object is a companion galaxy to Andromeda.
 

1. What is the solar system?

The solar system is a collection of planets, moons, asteroids, comets, and other objects that orbit around a central star, the sun. It is estimated that our solar system formed around 4.6 billion years ago.

2. How many planets are in our solar system?

There are eight planets in our solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. These planets vary in size, composition, and distance from the sun.

3. How big is the solar system?

The size of the solar system is difficult to measure, as it extends far beyond the orbit of Pluto. However, the approximate radius of the solar system is estimated to be about 100 astronomical units (AU), with 1 AU being the distance from the Earth to the sun.

4. What is the role of the sun in our solar system?

The sun is the central star in our solar system and plays a crucial role in sustaining life on Earth. It provides light, heat, and energy for all the planets and acts as the gravitational anchor that keeps the planets in orbit.

5. How does our solar system fit into the universe?

Our solar system is a small part of the Milky Way galaxy, which is just one of the billions of galaxies in the observable universe. Our solar system is located on the outer edge of the Milky Way, about 26,000 light-years from its center.

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