photo sharing and upload picture albums photo forums search pictures popular photos photography help login
Dale Conrad | all galleries >> Dale Conrad's Astrophoto Gallery >> Gallery of Star Clusters > Betelgeuse
previous | next
2011/01/25 D.M.Conrad

Betelgeuse

Sedro-Woolley, Wa.

Approximately 1 X 1.5 degree field of view centered on Betelgeuse in the constillation Orion is Orions' left shoulder.
If this red supergiant were in our solar system Jupiter would probably be skimming the surface of this giant star.
Betelgeuse is about 640 light years away and is expected to terminate itself as a type II supernova; and what a sight that will be.
This star is rugularly studied for a number of reasons, its irregular variability, relative age (thought to be rather young), and the train of thought saying it should go supernova within a million years.

I took this photo as a preliminary test of a Skywatcher 120ED scope. These 1 second exposures at an ISO rating of 800 depict stars to about magnitude 11.5
The image has been reduced to about 25% of its origonal size.

Hutech Canon 40D,Skywatcher 120ED F7.5 900mm FL
10 X 1sec. exposures
6 dark bias frames at the wrong temp but got rid of the hot pixels
Aligned and stacked with Nebulosity. Final processing with Canon DPP
Older Mountain Instruments MI-250 tangent arm mount. full exif


other sizes: small medium large original auto
comment | share