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Dale Conrad | all galleries >> Dale Conrad's Astrophoto Gallery >> Gallery of Star Clusters > Alberio
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2010/07/18 D.M.Conrad

Alberio

Sedro-Woolley, Wa.

Image center RA: 19h31m08.83s DE:+27°58'56.7"
Celestial north up and celestial east left.
The field of view is about 17X25 arc minutes.
Alberio is a binary star system about 380 light years from Earth, with an orbital period of at least 100,000 years.
It is the brightest star in the head of the swan (Cygnus).

Hutech Canon 40D,Meade 102ED with Borg 0.85 reducer (7887)
9 X 10sec. exposures and stacked with Nebulosity.
Aligned and stacked with Nebulosity
Older Mountain Instruments MI-250 tangent arm mount.
Borg 77Ach guide scope with an Orion Starshoot autoguider using PHD guiding full exif


other sizes: small medium large original auto
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