0
Many estimates in astronomy have some uncertainty to them, and the estimate of the number of stars in our galaxy is no exception. Even the world's largest telescopes can't count the stars. They see only the brightest and nearest stars - and stars not obscured by dust.
To estimate the number of the Milky Way's stars, astronomers first assume there's nothing special about our region of space. They determine the number of different types stars in this region - then extend this knowledge to the galaxy as a whole. The most popular current models suggest the Milky Way is about 100,000 light-years across. The estimate for the number of stars is about 100 billion stars - plus or minus 50 billion.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoThe same way we would estimate the number of grass blades in a field.
Pick a known area and actually count the number of stars observed - multiply this by the percentage of the area counted and that will give you a good estimate of the number of stars.
As technology increases and optical resolution increases, these numbers will vary.
Wiki User
∙ 13y agoThe best estimate of the number of stars in a typical galaxy is unknown there is so many but the best estimate is BILLIONS
Wiki User
∙ 12y agoWiki User
∙ 11y agoby applying Newton's extension of Kepler's laws to the motion of the Sun and other stars
Wiki User
∙ 6y agoThe observable universe is estimated to contain 200 billion to 2 trillion galaxies
Wiki User
∙ 10y ago100 billion
Add your answer:
Earn +20 pts
A star system has at least how much stars?
In our Galaxy? well as there is no real number as to how many stars we have, scientist believe that there are over 1 billion or 1 000 000 000 stars in the milky way galaxy.
Explain how scientist know that elliptical galaxy do not contain many young stars?
Gas and dust were stripped away in collisions that also stripped away many young stars.
How meny stars in the sky?
scientists aren't sure how many but in the current estimate, there are 100 billion stars in the galaxy and there are an estimate of 100 trillion galaxies in the universe. and the rest it's up to you to do the math.....
How many star does a typical galaxy have?
Our galaxy, the Milky Way, has somewhere between 100 billion and 400 billion stars (it's difficult to estimate precisely). However, it's not really "typical"; it has more stars than any other galaxy in the "Local Group" except for the Andromeda Galaxy, which has about a trillion stars. I'm not sure there really is such a thing as a "typical" galaxy.
How many stars are there in the Gusty Garden Galaxy on Super Mario Galaxy?
6 stars
How many stars are there?
There are an estimated 100 to 200 billion galaxies.Scientists estimate that our Galaxy (The Milky Way) contains 200 to 400 billion stars.So taking a conservative number of 100 billion stars per galaxy, gives an approximate total of 10,000,000,000,000,000,000,000 stars. (which is 10 sextillion)It is unknown. The Milky Way galaxy contains an estimated 200 billion stars and there are an estimated 100 billion galaxies in the observable universe. However, our galaxy is significantly larger than most. That said, if we assume the average galaxy has 10 billion stars then we arrive at an estimate of 1,000 billion billion stars, or about 1 sextillion stars.
How many stars on the galaxies?
A dwarf galaxy can have a few million stars; a huge galaxy can have a trillion stars or more.
How many stars are out of space?
We have no idea how many stars there are. At a rough guess, scientists estimate that there may be 2 trillion stars in the Milky Way galaxy, and that there may be a trillion other galaxies. There is no way to measure it in any meaningful way.
How many stars are in the elliptical galaxy?
An elliptical galaxy is a type of galaxy not a particular one.
Is a galaxy bigger then a star?
Yes. A galaxy contains many stars.
How many stars are in the galaxy called Saptharishi?
No galaxy by that name exists.
Are stars countable?
Yes and no, as there are a huge amount of starts. Only a few thousand stars can be seen by the naked eye. You can count those. Every star you see is in our galaxy and there are many more stars in our galaxy that you cannot, about 100 billion. Then there are billions of other galaxies. So we can estimate the amount of stars in the universe, but not count all of them.
