[beethovenfan]

Is there a name for the blue star in the lower left?

[Steely Tom]

Is there a name for the blue star in the lower left?

The star to which you refer isn't nearly as prominent in the visible spectrum as it is here, in the ultraviolet. I can't find a name associated with it.

The fuzzy yellowish elliptical thing below and to the right of the center of Andromeda is NGC 205. It doesn't have a proper name, but it was observed and catalogued by Charles Messier, carrying his index M110. It is relatively near Andromeda, and is referred to as one of its "satellite galaxies."

The yellowish fuzzy thing that's almost directly to the left of Andromeda's center (and just a little above it), seemingly located on the outer edge of Andromeda's disk, is NGC 221, also known as M32. It is another galaxy near Andromeda. NGC 221 has a black hole at its center; NGC 205 does not.

[Steely Tom]

At the center of the Andromeda galaxy is a cluster of massive stars which are all orbiting a "supermassive black hole," a very powerful one, with an estimated mass on the order of 150 million times the mass of the Sun. The gravitational field of these center stars is so intense that it affects the movement of other stars, and of whole galaxies, out to a distance of more than one hundred thousand light-years away from it.

By comparison, the black hole at the center of our galaxy, the Milky Way, has a mass estimated at 4 million times that of the sun.

[MtnClimber]

Is there a name for the blue star in the lower left?

Not sure what that is, maybe someone else will know and comment.