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What is the size of Eridanus constellation?

The size of a constellation such as Eridanus (River Eridanus) is measured in square degrees and it is 1137.919 sq. degrees in size. It takes up 2.76% of the night sky. It is the 6th largest constellation in the night sky.

It has 128 stars that have an apparent magnitude of 6.5 or lower. 6.5 is the faintest a star can be before it is no longer viewable with the naked eye. Of those bright stars, only 35 stars make up the constellation pattern.


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