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Linné on line arrow Physics and the Cosmos arrow Macrocosmos arrow The Milky Way

The Milky Way

Our galaxy, the Milky Way, consists of approximately one hundred billion stars which are kept together by the gravitational force. It is a spiral galaxy. Our sun is almost in the middle of the plane of the galaxy, about 8000 parsec (24 000 light years, 2.5*1017 km) from the centre.

COBE-bild av vintergatan

Picture of the Milky Way from the COBE satellite

The galaxy mainly consists of three parts: