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| 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.
