Albireo
About image
Albireo, or Beta Cygni, is for sure one of the most beautiful double star of the sky.
The primary star has magnitude 3.1 and yellow-orange color, while the secondary star has magnitude 5.1 and color blue-white.
Their apparent separation is 34", very big: for a long time it has been believed that it was an optical double star, due to the big separation, but today it has been thought it is a real double star, with an orbital period of several thousand of years.
The estimated distance from Earth is about 400 light years.
Technical data all gain 100
Optic GSO RC12 Truss - Aperture 304mm, focal lenght 2432mm, f/8
Mount 10Micron GM2000 HPSII
Camera ZWO ASI 2600 MM Pro with filter wheel 7 positions
Filters Astrodon Gen2 E-Serie Tru-Balance 50mm unmounted RGB
Guiding system ZWO OAG-L with guide camera ASI 174MM Mini
Exposure details R 30x10" bin3 -15C
G 30x10" bin3 -15C
B 30x10" bin3 -15C
Total integration 15'
Acquisition Voyager, PHD2
Processing Pixinsight 1.8, Photoshop CS5, NoiseXTerminator, BlurXTerminator
SQM-L 21.00
Location Promiod (Aosta Valley, Italy), own remote observatory
Date 16 May 2025
© Roberto Marinoni 2019 - All rights reserved