Monday, January 2, 2012

How far away is the constellation scorpius in light years?

The constellations are not astronomical objects -- they are figures we have drawn to help us map and find our way around the sky. It is therefore not possible to state the distance to Scorpius, but each of the stars, the star clusters, nebulae, and other celestial bodies within the constellation do have a distance. Antares, the red giant star in Scorpius is a double star about 550 light years away. M4, a incredible globular cluster very near Antares, is about 7 to 7.5 k light years (7000 to 7500 light years).

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