Albireo Beta Cygni

Albireo or Beta Cygni in the Constellation  Cygnus the Swan. 127mm Meade Apo Refractor and astromodded Canon 200d DSLR. A cropped stack of 20x 30 sec exposures at ISO800. Credit Pip Stakkert.

 "Albireo appears as a single star to the naked eye  but when observed with even a small  telescope is easliy resolved into two colour contrasting stars. In reality the brighter yellow star Beta Cygni  A is a very close binary star system. Beta Cygni B is a contrasting blue star. It is not known whether A and B are orbiting each other or whether they are a line of sight 'optical double'. A and B are estimated to between 330 and 390 light years distant. Beta Cygni A is a relatively cool K type Giant  star and Beta Cygni B is a hot fast rotating BE star."  - Joel Cairo CEO of the Jodrell Plank Observatory.