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Milkyway Galaxy

Milkyway Galaxy
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Description: This map shows the full extent of the Milky Way galaxy - a spiral galaxy of at least two hundred billion stars. Our Sun is buried deep within the Orion Arm about 26 000 light years from the centre. Towards the centre of the Galaxy the stars are packed together much closer than they are where we live. Notice also the presence of small globular clusters of stars which lie well outside the plane of the Galaxy, and notice too the presence of a nearby dwarf galaxy - the Sagittarius dwarf - which is slowly being sw*llowed up by our own galaxy. Properties of the Milky Way. Diameter of the Galaxy: 90 000 light years. Classification of the Galaxy: SBbc. Number of stars in the Galaxy : 200 billion. Mass of the Galaxy : 1 trillion solar masses. Length of the central bar : 25 000 light years. Distance of the Sun from the centre : 26 000 light years. Thickness of the Galaxy at the Sun : 2000 light years. Velocity of Sun around the Galaxy : 220 km/s. Orbital period of Sun around the Galaxy : 225 million years.
Uploaded By: femcat38
Date: 4/26/2014
Views: 748
File Size: 22 KB
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