Cygnus 17 – the right upper magnification – Brightness is 5 Mag., The double system of stars of the night sky in the constellation of the swan. You can observe this pair of stars from the suburban sky. However, to comfortable observe the double system, a telescope will be needed. The distance between our Sun and Cygnus 17 is 68.2 light years.
HIP 97307 – lower left magnification – HIP97307 is the star reference name in the Hipparcos Star Catalogue. The double system is not a direct part of the swan constellation, but is within the constellation of the swan. Brightness is 6.18 Mag. Based on the spectral type (K2), the color of the star is in the range between orange and red. You can see it with an unarmed eye, but to comfortable observe the dual system you should use a telescope. The distance between our Sun and HIP 97307 is 366,9 light years.
(March 2019) made in Zwardoń. A standard place
of meetings of the Polish
association of astronomy enthusiasts – Katowice
Equipment: Canon EOS 6D, Sky-Watcher 200/1000 [mm] on the EQ6 Pro.
Composition: DSS (10 best frames and Dark + Bias frames)
Processing: GIMP v2.10.6 + add-ons (Linux)