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Why did Early Astronomers think that galaxies were single stars?
Wiki User
∙ 14y ago
Early astronomers had poor instruments for observing the heavens. Large practical optical telescopes have only existed for about 350 years, and until the 20th century, there was no concept of "radio" at all - far less "radio astronomy". The idea of the "Big Bang" was ridiculed right up until Penzias and Wilson discovered the background cosmic radiation, for which they won the Nobel Prize.
Wiki User
∙ 15y ago
Wiki User
∙ 14y agoIn a not-so-powerful telescope, you can't distinguish the individual stars in a galaxy. You only see a spot of light.
Wiki User
∙ 11y agoMainly because they (the Galaxies) are thirteen Billion light years away, and as such they present a stunningly slight'degree of view'.
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What is the name of a sicentist that studies celestial bodys?
An astronomer is a scientist who studies celestial bodies (planets, stars, black holes, moons, nebulae, galaxies).
Are there any stars between Galaxies?
Yes, there are stars between galaxies. When there are collisions or interactions between galaxies, stars can be ripped out of the galaxies. These stars will then wander into space between galaxies. Such stars have been observed with the Hubble Space Telescope. Taken from http://curious.astro.cornell.edu/question.php?number=384
What does modern astronomy study?
Yes, astronomers study stars, planets, and other heavenly bodies. The word has its origin in the Greek "astron" which means star, although the science includes pretty much anything outside Earth's atmosphere.
What kind of scientist studies the universe and the planets galaxies stars and other objects within it?
Astronomers and physicists.
What types of stars do elliptical galaxies usually have?
Yes. However, the current rate of star creation is less than when the galaxies were younger.Yes. However, the current rate of star creation is less than when the galaxies were younger.Yes. However, the current rate of star creation is less than when the galaxies were younger.Yes. However, the current rate of star creation is less than when the galaxies were younger.
What are astronomers?
A scientist who studies celestial bodies such as planets, stars , and galaxies.
How does a spectroscope enable astronomers to determine the characteristics of distant stars and galaxies?
en.wikipedia.org/wiki/Spectroscopy
Why couldn't early astronomers tell the difference between single stars and the entire galaxies when the looked at the night sky?
Unless you have a extremely powerful telescope, a galaxy and a star look almost the same.
What is the unit that astronomers use to measure the differences between stars and other galaxies?
They do not use units: they use the fact that stars are not galaxies. For example, you don't use units to measure the difference between children and countries.
What type of scientist studies the Solar System stars and galaxies?
Collectively they are called Astronomers and Astrophysicists. Either professionals or amateurs.There are many types of astronomers, defined by how they study the stars. The most well-known are those that use optical telescopes followed closely by those that use Radio-telescope to pick up wavelengths other than visible light. there are many others and many other ways to collect data on the galaxies and stars.Astrophysicists are astronomers and may also collect direct data, yet they are more interested in the working behind the data. They deal in physics and theories of the galaxies.
How can astronomers survey at least 100 billion galaxies to make a 3D map of the observable universe?
No, because it will be impossible for astronomers to survey at least 100 billion galaxies (each with 100 billion stars) to make a 3D map of the observable universe.
What kind of cluster is a tight group of older stars in the halo of spiral galaxies called?
I think you are describing a "globular cluster", which are associated with older stars by most astronomers.
What is the name of a sicentist that studies celestial bodys?
An astronomer is a scientist who studies celestial bodies (planets, stars, black holes, moons, nebulae, galaxies).
Is every star a different galaxy?
No. Individual stars make up galaxies, sometimes in huge numbers. Some galaxies can appear, in telescopes, as single stars but this is due to their great distance
Which stars are actually a galaxy?
No stars are actually a galaxy. All stars are stars and all galaxies are galaxies. Stars are found in galaxies. Some galaxies look like tiny dots in our night sky, so might look like a star, but they are not stars; they are galaxies.
How big is the average irregular galaxy?
There are about 400 billion stars in galaxies
What are all stars and galaxies in?
All stars and galaxies are in the universe.
