Is there an exact amount of Stars?

Question

One more quition when the world goes around , are we upside down where gravity holds us down.

Answer 1

Yes there is an exact amount, but that does not mean anyone knows the exact amount, that amount keeps changing as stars are born and die.

Answer 2

There is no way to measure an exact amount of stars. Stars are burning balls of gas (mostly hydrogen and helium). Like all forms of energy once it becomes all used up, it is no longer there.

Stars form when giant gas clouds start to clump together and collapse in upon themselves. This clumping is often caused by energy waves from nearby exploding supernovae. As they collapse, the molecules that form the clouds compress in upon each other to form helium and hydrogen. Once gravity pushes them together strongly enough, nuclear fission will begin to occur in the core of the star. This process will continue throughout the life of the star, until all of the fuel is used up.

So on any given night you may have at one point in time a trillion stars a few moments later you maybe at a trillion minus one. Then later it may have gone from a trillion minus one to being a trillion plus three. Make sense? Therefore it's impossible to have an EXACT amount of stars.

Answer 3

If you mean is there a fixed number of stars; then no. Stars are being born and dying all the time; thus, the number of stars is constantly changing over time. [See source.]

If you mean is there a countable number; the answer is still no. The universe is way too vast for us on Earth to count them. There are billions of galaxies, each with billions of stars in the part of the universe we can actually see. However, by taking statistical samples of a portion of the known (seen) universe, we can guesstimate there are about 70 sextillion stars in what we can see. [See source.]

As one person put it, there is no up or down in the universe. Map makers arbitrarily put the northern hemisphere up. And clearly when we drop something, that something falls down, but only because we defined down to be towards the Earth. As down is towards Earth, it makes no difference where on Earth we stand, when an object falls, by definition it always falls down.

Answer 4

NO. Mankind does not know the exact amount of stars, therefore there is no exact amount. When and if it is determined that there is a finite number of stars, and that number can be determined EXACTLY, then mankind will know the EXACT amount. Currently we can only estimate.

Secondly, one side of the earth is NOT upside down from the other side of the earth. All sides are just outward from the center of the earth.

Answer 5

There is no "up" or "down" in free space. Those directions are defined by the direction of the local gravitational field.

There is no way to count all of the stars either, other than in very rough numbers. For one thing the furthest reaches of the universe are perpetually unobservable, because the expansion of space is carrying them away from us faster than the speed of light. There is thus no way to observe those areas at all.

The total number of stars is enourmous, however: there are trillions of starts in the Milky Way Galaxy alone, and hundreds of billions of other galaxies are known to exist.

Answer 6

Yes.
But a better question might be "What is the exact number of stars, right NOW!?", as I doubt anybody on Earth has the technology to count every one, and they are always forming and blowing up somewhere.

Answer 7

No, the universe is large enough that there are probably stars being created and destroyed constantly so the number is always changing.

Answer 8

no there is no exact amount of Stars...they are getting created as time goes on.....rite now many are getting created as ur reading this ....so, no