Galaxies

Definitely not. There are bigger stars in our Milky Way Galaxy. There is also suspected to be a Super Massive Black Hole in the middle of our galaxy too (which is way bigger). The Sun is a medium sized star.

I'm not sure of your question, but in astronomy, there is a "Local Group" of more than 20 galaxies to which the Milky Way belongs. About half are elliptical, with the remainder being of the spiral or irregular type. As in other clusters of galaxies, members are probably kept from separating by their mutual gravitational attraction. The Milky Way system is near one end of the volume of space occupied by the Local Group, and the great Andromeda galaxy (M31) is near the other end, about 2,000,000 light-years away.

If you know where Canis Major is, then you cannot miss Sirius. It is not only the brightest star in Canis Major, but the brightest in the night sky. Find Orion in the south, during the winter months in the northern hemisphere. Then find Orion's Belt, and follow its line of stars down to the left and you will find Sirius. It is unmistakeable. It is now April, but it is still visible in the early part of the night, but by next month it will be harder to see and won't be easily visible again until next winter.

Into Elliptical and Spiral galaxy.

Yes. There are two types of spiral galaxies: "S" (normal spiral) and the less common "SB" (barred spiral, with an elongated center).

All of them are.

Generally elliptical galaxies are the oldest.

Messier 32 is a dwarf elliptical galaxy about 2.65 million light years away in the constellation Andromeda

Maffei 1 is a giant elliptical galaxy in the constellation about 10 billion light years away in the constellation Cassiopeia. It is the closest giant elliptical galaxy to the Milky Way

the galaxy that contains no blue stars is I DO NOT KNOW and i would like to know the answer too

3-kpc and Perseus Arm

Norma and Outer arm (Along with a newly discovered extension)

Scutum-Centaurus Arm

Carina-Sagittarius Arm

There are at least two smaller arms or spurs, including:

Orion-Cygnus arm (which contains the Sun and Solar System).

Most galaxies are shaped like a disk. It's the way they are formed.

One of the most beautiful is the Sombrero Galaxy. [See related link for a picture]

our galaxy contains between 200- to 400-billion stars arranged in a giant disc shape. The diameter is 100,000 light years with an average thickness of 10,000 light years. The Earth is located about 28,000 light years from the center of the Milky Way.

Alrisha is a binary star (two stars) that are both white dwarfs. It is located at the bottom of Pisces, and is the star that binds the tails of the two Pisces fish together. Since both stars are white dwarfs, the stars are degenerate, meaning they no longer fuse energy, and are in the process of cooling down.

It's what holds them together.

(what's it like in your universe? ... since you're implying that yours is different.)

Well, the phrase "typical galaxy" begs a debate in itself (smile), but the most commonly heard figure for "stars in a typical galaxy" is 100 billion. And many astronomers believe there may be 100 billion galaxies in the known universe. The math gets kind of heavy duty!

One thing is that they all seem to follow the same basic procedure of stellar evolution we observe among the stars in our own galaxy.

Yes. There are more glaxies than just ours. The observable univers contains an estimated 100 billion galaxies. There may be other galaxies out there too, ones so distant that their light has not reached us.

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the spiral form is the result if the two principal vectors at work on the particulate masses. These are the incoming linear velocity and the attraction to the centre of capture (Black Hole?) which exercises a high gravitational pull which increases the velocity of the particle.

It is known as an irregular galaxy. A few different Classifications are :

Irr L (some structure)

Irr LL (No visible structure)

Also Dward Irregulars :

DL

DLRRS (Low Metallicity)

The closest spiral galaxy to us is known as the Andromeda galaxy.The Large and Small Magellanic Cloud closer,but there not spiral galaxy there dwarf galaxies.The Andromeda galaxy is about 2,000,000 light years away,while the Large Magellanic Cloud is 160,000 light years away,and the Small Magellanic Cloud is 200,000 light years away.That is why the Large Magellanic Cloud looks larger.

Everything is made of matter, and all matter is made of atoms. Atoms are made of protons, neutrons, and electrons which are all made of quarks and bozons. It gets smaller but those are as of yet unknown.

As with all space questions about speed, it all depends on your point of reference.

Within the Milky Way, the orbital rate of the stars increase as you move away from the centre of the galaxy.