M71 (NGC 6838) is a globular cluster in the constellation Sagitta. The star cluster is at a distance of about 12,000 light years away from Earth and spans some 27 light years across. Source: https://en.wikipedia.org/wiki/Messier_71 Photographs made on March 2019. Stack: APP (6 best frames)Processing: GIMP v2.10.14 + add-ons (Linux)Lights:
M101 (NGC 5457) – Pinwheel Galaxy – a spiral galaxy with a weak nucleus and very well developed arms in the constellation Ursa Major. Brightness is 7.9 Magnitude.The diameter of M101 is 170 000 light years, and its mass is approximately equal to 180 billion solar masses. It’s 21 million
Same Light frames (made 30.3.2019) has been processed but with new technique. M13 – Cluster of Hercules – Brightness is 5.8 Magnitude. The cluster’s diameter is 145 light years! The distance from the ground is 25.1 thousand light years. Photographs taken on: March 2019. Composition: APP (10 best frames and
The brightest in the constellation of a volley. Red giant class of stars. The distance between our Sun and Arctur is 36.72 light years. Photographs taken on: March 2019. Composition: DSS (5 best frames and Dark + Bias frames)Processing: GIMP v2.10.6 + add-ons (Linux)Lights: 5 x 57[s], ISO-1600;
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.
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Astrophotography by Dariusz Krzempek
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