M40

Double Star

About this object

Double star in Ursa Major (Big Dipper).  Mizar is the brighter star of the pair and is the second star from the end of the handle of the dipper.  The separation between the double stars and the third bright star Alcor can be detected with good eyes and dark skies. 

Technical Information

Optics:                                  Meade LX90 8" SCT @ f/3.3              

Camera:                               Meade DSI

Date:                                     April 30th, 2006   (2006 Texas Star Party)

Location:                               Ft. Davis, Texas

Exposure Details:                50 x 11.3 seconds

Acquisition:                           Meade AutoStar Envisage

Processing:                           AIP4WIN, Photoshop CS