Delta Cephei - The Prototype Cepheid Variable

Here's a shot of the binary star Delta Cephei I captured on July 12, 2015. Delta Cephei resides at 887 light years distant towards the constellation Cepheus. It is the first Cepheid Variable star to be identified and is the prototype of that classification. Being a Cepheid Variable, it changes in brightness over a stable period. Visibly, Delta Cephei can be resolved as a binary star system, though spectroscopically four stars are present. I captured this shot at Frosty Drew Observatory in Charlestown, Rhode Island, USA.

 

Photo Details:

Camera: Canon 60D MagicLantern

1370mm

f/9

ISO: 1250

Exposure: 60 seconds * 18 frames

This is a median composite of 18 images to reduce noise

 

-Scott MacNeill

exitpupil.org

Done