Sunday, February 12, 2012

What's the difference between galaxy and constellation?

are constellations inside galaxies or galaxies inside constellations? thanksWhat's the difference between galaxy and constellation?The 88 constellations that you can see from earth are all within the our home galaxy the Milky Way. Constellations are man made creations that are supposed to look like mythological creatures.



Galaxies on the other hand, are collections of stars (100's of billions) that are gravitationally bound to a central large mass. Usually, a super massive black hole.What's the difference between galaxy and constellation?
Galaxies (~10^10 stars) are far larger than constellations (~10 stars). All constellations seen from Earth are made up of stars within the Milky Way galaxy. Other galaxies are a long way outside the Milky Way.



To confuse things, you might hear astronomers saying that a galaxy is 'in' a constellation. This means that the galaxy is in that DIRECTION. There are a number of galaxies, such as the Sagittarius Dwarf and Irregular galaxies named for their apparent location on the celestial sphere.What's the difference between galaxy and constellation?It should also be noted that constellations are relative to Earths' galactic position. That is to say the stars making up he constellations are not set into their optical positions and can be millions upon millions of miles apart. It is due to our galactic perspective that these star groupings can be observed in that particular manner. Other locations in the galaxy would not result in the same optical effect. .What's the difference between galaxy and constellation?
A galaxy is a natural collection of stars, nebulae, dust, etc. A constellation is just an area of the sky as seen from Earth, and the star which happen to lie in that direction. All of the stars which we see with the naked eye are in our own Galaxy, the Milky Way. These stars form the constellation patterns which we see. All the other galaxies lie beyond the Milky Way, so lie in constellations. Sagittarius is a constellation, so lies within the Milky Way Galaxy. It doesn't contain any galaxies because the central bulge of our own galaxy lies within Sagittarius and blocks our view. External galaxies are mostly seen in constellations away from the main band of the Milky Way, because again the gas and dust of the Milky Way blocks the view.What's the difference between galaxy and constellation?A galaxy is a collection of stars, gas and dust, all bound by their own gravity.

A constellation is a region of the sky on which humans agree to give a name -- somewhat like a country is a human convention, not an actual delimitation in Nature.What's the difference between galaxy and constellation?
Yes a constellations a group of billions of stars in a Galaxy
Constellations are groups of stars insude the galaxy.

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