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When did ProtoGalaxy happen?
ProtoGalaxy happened in 2010.
What is the average diameter of a protogalaxy?
About 100 light-years in diameter.
Which type of galaxy is probably a young galaxy?
The "real" answer is a protogalaxy or primeaval galaxy as these are the first stages in the formation of a galaxy.However, it's more than likely, the question has to do with new star formation, in which case, it will be a spiral galaxy (but the galaxy is not young) Our galaxy - the Milky Way - is about 13.2 billion years old - almost as old as the Universe itself.
How do spirals form?
Spiral galaxies form from the collapse of a protogalactic cloud. Spiral galaxies consist of three components: a rotating disk, a bulge and a halo. Spiral galaxies, like the Milky Way, owe their shape to stars inside the protogalaxy developing at different intervals. The gas between forming stars continues to be compressed, and the resulting gravitational differences manhandle the protogalaxy's stars, dust and gas. When the protogalactic cloud collapses, the stars in the bulge and halo form first. These stars have rather random orbits around the galactic center. The galactic center probably contains a supermassive black hole, which likely exerts some gravitational influence on the formation of a spiral galaxy. The remainder of the cloud forms a disk due to the conservation of angular momentum (the same effect as the spinning up of the dancer when she pulls her arms inside). This motion forces everything into a rotating disk, and additional differences in gravity build the spiral arms. Oppositely, when a protogalaxy's stars develop at the same time, you have an elliptical galaxy on your hands. The stars in the disk form later and thus the disk population of stars are younger than those in the bulge and the halo. Further, the stars in the disk rotate around the center of the galaxy in a collective, well defined way unlike the stars in the bulge and halo.
How do spiral galaxies form?
Spiral galaxies form from the collapse of a protogalactic cloud. Spiral galaxies consist of three components: a rotating disk, a bulge and a halo. Spiral galaxies, like the Milky Way, owe their shape to stars inside the protogalaxy developing at different intervals. The gas between forming stars continues to be compressed, and the resulting gravitational differences manhandle the protogalaxy's stars, dust and gas. When the protogalactic cloud collapses, the stars in the bulge and halo form first. These stars have rather random orbits around the galactic center. The galactic center probably contains a supermassive black hole, which likely exerts some gravitational influence on the formation of a spiral galaxy. The remainder of the cloud forms a disk due to the conservation of angular momentum (the same effect as the spinning up of the dancer when she pulls her arms inside). This motion forces everything into a rotating disk, and additional differences in gravity build the spiral arms. Oppositely, when a protogalaxy's stars develop at the same time, you have an elliptical galaxy on your hands. The stars in the disk form later and thus the disk population of stars are younger than those in the bulge and the halo. Further, the stars in the disk rotate around the center of the galaxy in a collective, well defined way unlike the stars in the bulge and halo.
What does the prefix pro meant?
Proto is from the Greek πρῶτος meaning 'first'. It is mainly used in scientific/technical terms to mean 'first' or 'original', such as protogalaxy - a mass of gas not yet formed into stars but thought to eventually become a galaxy. Note, the second term is also often from a Greek base.
When was Created By created?
Created By was created in 1993.
When was .am created?
.am was created in 1994.
When was ...And God Created Them created?
...And God Created Them was created in 1979.
When and where was snooker first played?
It wasn't created in England. It was created in India.It wasn't created in England. It was created in India.It wasn't created in England. It was created in India.It wasn't created in England. It was created in India.It wasn't created in England. It was created in India.It wasn't created in England. It was created in India.It wasn't created in England. It was created in India.It wasn't created in England. It was created in India.It wasn't created in England. It was created in India.It wasn't created in England. It was created in India.It wasn't created in England. It was created in India.
When was I Created Disco created?
I Created Disco was created on 2007-06-15.
When was We Created Our Own Happiness created?
We Created Our Own Happiness was created in 1997.
