Answer:
They all contain mass Yes, they all exert a gravitational force on you. We take the gravitational force as decreasing with distance with the inverse square law (just means we times it by 1/r^2), but we say the force extends to infinity. So, all these things, no matter how far away they are, or how small their contribution will all exert a grav force on you, so long as they have mass.
No. It's the mutual gravitational force between it and the earth that keeps a satellitein a closed orbit, instead of flying off away from earth in a straight line.Technically, there's no such thing as "outside of" the gravitational force of anything.We can calculate the gravitational force between a star in a distant galaxy and the earth.In fact, we can calculate the gravitational force between a star in a distant galaxy and you.The force is pretty small, but it's there.
True
Yes. Lensing magnifies the image of galaxies behind distant galaxy clusters but also greatly distorts the image.
Galaxies do exert significant gravitational attraction on other galaxies. For example, the Greater and the Lesser Magellanic Clouds are galaxies that orbit our own galaxy, the Milky Way. In that sense, the stars in one galaxy do have a gravitational interaction with those in other galaxies. Of course, the more distant galaxies have correspondingly less gravitational interaction with ours.
Yes. All mass exerts a gravitational pull and gravity exists everywhere. Many objects have much stronger gravity than Earth does.
The nearest and the largest galaxy to the Milkyway is the "Andromeda Galaxy."
Not counting the Magellanic Clouds (which are minielliptical galaxies orbiting our galaxy), the Andromeda galaxy is the galaxy nearest to our galaxy.
The nearest Spiral Galaxy is our own Milky Way Galaxy. After that, is the Andromeda Galaxy.
The nearest non-dwarf galaxy is the Andromeda galaxy.
They are red shifted.
The second nearest is the Saggitarius Dwarf Spheroidal Galaxy.
Andromeda Galaxy is the nearest spiral galaxy to our Milky Way Galaxy. It is the largest galaxy of the Local Group, which also contains the Milky Way, the Triangulum Galaxy, and about 30 other smaller galaxies.