About image
M11 (sometimes also known as the Wild Duck Cluster or with the acronym NGC 6705) is an open cluster visible in the Scutum constellation.
With a magnitude of 6.3 and an apparent size of 14 ', it is one of the richest and densest open clusters known, with an estimated population of around 2900 stars.
It is 6000 light years from Earth and has an estimated age of 250 million years.
Technical data
Optic GSO RC12 Truss - Aperture
304mm, focal lenght 2432mm, f/8
Mount 10Micron GM2000 HPSII
Camera ZWO ASI 2600 MM Pro with filter wheel 7 positions
Filters Astrodon Gen2
E-Serie Tru-Balance 50mm unmounted RGB
Guiding system ZWO OAG-L with guide camera ASI 174MM Mini
Exposure details R 20x60" bin3 -20C
G 20x60" bin3 -20C
B 20x60" bin3 -20C
Total integration 1h
Acquisition Voyager, PHD2
Processing Pixinsight 1.8,
Photoshop CS5
SQM-L 21.2
Location Promiod (Aosta
Valley, Italy), own remote observatory
Date 1 August 2022