Celestial hemisphere:  Northern  ·  Constellation: Hercules (Her)  ·  Contains:  Hercules Globular Cluster  ·  M 13  ·  NGC 6205
M 13  Great Cluster of Hercules,  Constantino
M 13  Great Cluster of Hercules
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M 13 Great Cluster of Hercules

M 13  Great Cluster of Hercules,  Constantino
M 13  Great Cluster of Hercules
Powered byPixInsight

M 13 Great Cluster of Hercules

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Description

Urban Astrophotography

Bortle scale 9_SQM 16.23 mag/arc.seg²

Sombrero Observatory - Póvoa de Varzim-Porto

41,377118º N : -08,750137º W PORTUGAL

In times of “pandemic” I revisited the Great Cluster of the constellation of Hercules, the famous M13 (NGC6205).

It is located about 25100 light years from Earth and its age has been estimated to be 13 billion years. Contains over 100,000 stars (recent estimates over 1,000,000).

Image acquisition 06/20/2019 and 07/28/2020, total time 16.6 hours.

Technical note: LRGB (189+42+32+36) with exposure times of 200 seconds.

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M 13  Great Cluster of Hercules,  Constantino