Is our sun (solar system included) stationary, or mobile, in the universe?

Question

I learned for example that black holes can be mobile. Are other stellar bodies similarly mobile?

Answer 1

Yes. Our galaxy, the milky way, rotates and is in motion through space. See the link below for further information.

Answer 2

Moving relative to what? Motion is a relative effect, and there's no reason we can't say that the Earth is sitting still and everything else moving around us. This is one of the key ideas of the Theory of Relativity, that there is no absolute rest or absolute motion.

Of course, that's not to say, in terms of physics and the mathematics that describes it, that it's best to say that the Earth isn't moving. Indeed, the mathematics describing the motion of the Earth, Sun, and the rest of the planets are simplest when you assume the Sun isn't moving. Similarly, in describing how the stars and Sun move in the galaxy, it's easiest to put the center of galaxy at rest.

And, there is a kind of special state of motion in the universe: one which isn't moving with respect to something called the CMB, which is a remnant of the Big Bang. With respect to the CMB, there's lots of motion. Planets move around stars which move around galaxies which move around in groups of galaxies which move around in even larger groups and so forth.

So, in determining what's moving, you need to specify what you're interested in measuring motion with respect to. When we say a car is going 50mph, it's implied that the car is moving 50mph versus the ground. If there was nothing in the universe but a rocket (not even a road or ground), then there would be almost no way to define it's motion (with the caveat that you could measure it's speed against the speed of it's exhaust).

But in general, with that said, the universe is a busy place. Things are always moving with respect to each other. When you're talking about planets and stars and galaxies and black holes, gravity is the force generally responsible for this motion.

Answer 3

Or earth revolves in an orbit relative to the dynamic Barry center of the sun. The solar system inluded all the motions of planet relative to the Sun. Hense the solar sustem can be considere a gross mass structure. This mass structure moves relative the the barry center of the Milky way
The solar system moves at a proper motion of aprox 250 km/sec.
The Earth 's eliptical motion of the orbit around the sun is aprox 29.7 km/sec

Answer 4

The Sun is named Sol. Astronomers DO use the proper name from time to time, though "The Sun" is far more common. So, it's: Earth, Solar System, Orion Arm, Milky Way Galaxy, Local Group, Local Supercluster. Beyond that, I don't know.

Answer 5

Everything in the Universe is in constant motion, even though we cannot discern the motion, because the distances between bodies is SO vast. Galaxies are flying apart at incredible speeds, our Solar System is traveling fast, as well, around the core of our own galaxy, the Milky Way.

Answer 6

Here are the motions involved with our solar system, which includes the sun of course --

Earth rotates on its axis at about 1,000 mph at the Equator

Earth orbits around the sun at about 67,108 mph

Sun and the solar system rotates around the Milky Way Galaxy at about 560,000 mph

Milky Way moving towards a super-cluster of galaxies known as the "Great Attractor" at about 1,340,000 mph

Answer 7

Yes, everything in our solar system moves. the sun orbits the center of the milky way galaxy at about 225 kilometers/second. The milky way galaxy moves about 100 kilometers/second around the supercluster of the multiverse

Answer 8

There are defferent theories about the universe. One of them is "TheOscillating Universe" ie. Expanding and contracting universe. Now it is the span of expansion. The inter solar system gap is increasing. So naturally the sun of our solar system is moving. This is one of the theories which i read in one of the school texts

Answer 9

Yes. Earth revolves around the sun. The sun revolves around the center of our galaxy. Our galaxy revolves around the center of our galaxy cluster. This pretty much continues for quite a while so I'll stop now.

Answer 10

Mobile. It circumvents the galaxy once every 250 million years or so. And actually it's the sun that travels around it: we're just along for the ride. 'Nemesis' is our sun's double (most stars are binary) and follows the sun at enormous distances.