Why is the secondary star in Eridanus1 so blue?

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Eridanus1
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I saw this binary with me friend's 10-inch. The secondary looked so blue I could not believe my eyes!

Has anyone hear noticed the deep colour of this lovely double star?

Eridanus1
 
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Eridanus1 said:
I saw this binary with me friend's 10-inch. The secondary looked so blue I could not believe my eyes!

Has anyone hear noticed the deep colour of this lovely double star?

Eridanus1
This one of the prettiest binaries in the sky. If you can view it through a 6" or better refractor, DO IT!
 

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