To know that we would need to know the mass of all objects in the Galaxy. To date, we are unable to determine that - partly because of limitations in technology but mainly because about a third of the Galaxy is shadowed by the central core and is thus unobservable.
For the solar system, the escape velocity is over 1,000 km per second.
city of stars in the centre of milky way galaxy is about 175000km/s.
gravity
by the no gravity in the milky way
the milky ways gravity is pulling it in
Gravity. From the Milky Way in this case.
Gravity causes all orbits. It is believed that there is a "super massive" black hole at the center of the Milky Way, and most or all other galaxies, that serves as the primary source of gravity.
gravity
gravity
Gravity. The Sun and our solar system are one tiny part of the Milky Way, and about as significant as a single grain of sand on a very long beach.
I am not sure but i believe it is because it spins rapidly because of the gravity in it's core.
There isn't "more gravity" in the Andromeda galaxy, because that's essentially a meaningless phrase. It used to be believed that the Andromeda galaxy was larger and more massive than the Milky Way. It's still thought to be larger (in terms of the number of stars), but the Milky Way may actually be more massive. It's hard for scientists to tell how exactly how big the Milky Way is because we're inside it and "can't see the forest for the trees".
All of the earth's motion is completely determined by gravity: the gravitational pull on the earth by the sun (and the larger outer planets), the gravitational pull of the Milky Way galaxy on the sun, the gravitational pull of our local cluster on the Milky Way galaxy and so on, up the ladder.
Gravity on both a galactic and intergalactic scale.