M 23
About image
Messier 23 (also known as NGC 6494) is an open cluster visible in the constellation Sagittarius. It lies in a very rich star field due to the presence of large star clouds in the Milky Way. M 23 contains around 100 stars and is located approximately 2,150 light-years from Earth.
Technical data
Optic Astrograph Newton Artec 200 E - Aperture 200mm, focal lenght 912mm, f/4.5
Mount Skywatcher EQ6R
Camera Touptek 571C Pro with external filter wheel 5 positions
Filters Baader UV/IRCUT 50mm
Guiding system Artesky Ultraguide 60 MKII
Exposure details UV/IRCUT 86x30" bin1 -10C gain 100
Total integration 43'
Acquisition Voyager, PHD2
Processing Pixinsight 1.8, NoiseXTerminator, BlurXTerminator
SQM-L 20.70
Location Promiod (Aosta Valley, Italy)
Date 5 July 2026
© Roberto Marinoni 2019 - All rights reserved