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NGC 6946 Fireworks Galaxy & NGC 6939 Star Cluster

O NGC 6946 , also known as the Fireworks Galaxy is an intermediate spiral galaxy about 18 million light-years away, in the constellations Cepheus and Cygnus. It was discovered by William Herschel on September 9, 1798. NGC 6946 is highly obscured by interstellar matter of the Milky Way galaxy, as it is quite close to the galactic plane. The diameter of the galaxy is approximately 40,000 light-years or just about a third of the size of the Milky Way. Appearing in the same visual field, just 40′ northwest of NGC 6946 you will find NGC 6939, a dim open star cluster.

Location

Mt Parnon 22-23 August 2020

Telescope

Altair Astro 115 f7 ED Triplet APO

Mount

Sky-Watcher AZ EQ6-GT

Camera

QHY163 m, temp -25 C

Guiding

Guidind TS OAG, QHY5L II, PHD 2

Filter / Exposures

RGB 18x300 sec

Total Exposure time

4,5 ~ hours

Software

Nebulosity 4, Maxim DL, Pixinshight, Photoshop 2020

 

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