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Why are stars considered to contain most of the visible mass of the universe?
Wiki User
∙ 12y ago
Because stars are the one thing that you can see over great distances.
Wiki User
∙ 12y ago
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How many number of stars?
Just in our galaxy - the Milky Way - there are several hundred billion stars. In the visible Universe, there are hundreds of billions of galaxies. It is not currently known how far the Universe extends, beyond the visible limits. A rough estimate, then, would be that there are 1011 x 1011 = 1022 stars (a one with 22 zeroes, that is), just in the visible Universe - the part that our instruments can reach in theory.
Why is a black hole considered an oddity in the universe?
Considering the other oddity's in the Universe; Neutron stars, pulsars, Wolf Rayet stars, magnetar or even hypernovas, I don't think black holes are that odd.
Why does the universe not contain any black dwarf stars?
It is not old enough. It is estimated that it would take trillions of years for a white dwarf to a black dwarf. The universe is only about 13.8 billion years old.
How many stars is the sun visible from?
Maybe from all stars, thousands of stars, in the galaxy.
What are the second and third largest stars in the universe?
We haven't observed all of the stars in the Universe, so we don't know what is the largest yet.
How meany galaxies and stars are there in this universe?
In the VISIBLE UNIVERSE, there are somewhere in the order of 1011 galaxies; each galaxy on average has 1011 stars, for a total of (very roughly) 1022 stars.
How many number of stars?
Just in our galaxy - the Milky Way - there are several hundred billion stars. In the visible Universe, there are hundreds of billions of galaxies. It is not currently known how far the Universe extends, beyond the visible limits. A rough estimate, then, would be that there are 1011 x 1011 = 1022 stars (a one with 22 zeroes, that is), just in the visible Universe - the part that our instruments can reach in theory.
What is the number of stars vin the universe?
Currently there are estimated 400 billion stars according to astronomers, althrugh not all are visible in the night sky.
Is the hottest star blue?
Yes, blue stars are considered to be the hottest stars in the present classification of stars in the known universe.
Do sun contain most of the visible material?
No. The sun is a fairly average sized star out of billions of stars.
What are all the galaxies?
The collection of all visible or detectable galaxies is known as the universe. Each galaxy is a vast collection of stars--billions of them. Some galaxies have trillions of stars.
Why does the universe contain less hydrogen then it used to?
Some of the hydrogen has been converted into heavier elements by stars.
Why do scientists believe that stars contain the same elements as the solar system?
The elements on the visible part of distant stars can be obtained from the star spectra, that is, by analyzing the light that comes from the stars.
How many star make up our universe?
The amount of stars in the Universe is not know. The visible Universe has several hundred billion galaxies, each of which, on average, has perhaps a hundred billion stars or more. Even the exact shape of the Universe is an area of current research. In any case, it does seem that the Universe is much bigger than it was believed a few decades ago.
Why is a black hole considered an oddity in the universe?
Considering the other oddity's in the Universe; Neutron stars, pulsars, Wolf Rayet stars, magnetar or even hypernovas, I don't think black holes are that odd.
Where are stars in the universe?
Stars are scattered all across our universe but guess what? there are no stars in our solar system besides the sun!
All the stars and galaxies are in this?
The Universe.
