About image
NGC 884 is one of the two open clusters that make up the Double Cluster of Perseus. Compared to its "companion" NGC 869, it is more photogenic due to the presence in the field of some orange stars.NGC 884 is 7600 light years away from us and has an estimated age of about 12.5 million years.
Technical data
Optic GSO RC12 Truss - Aperture
304mm, focal lenght 2432mm, f/8
Mount 10Micron GM2000 HPSII
Camera Moravian
G3-16200 with external filter wheel 7 positions
Filters Astrodon Gen2
E-Serie Tru-Balance 50mm unmounted RGB
Guiding system OAG Moravian M68
with guide camera Moravian G1-0301
Exposure details R 8x300" bin2 -20C
G 8x300" bin2 -20C
B 8x300" bin2 -20C
Total integration 2h
Acquisition Voyager, PHD2
Processing Pixinsight 1.8,
Photoshop CS5
SQM-L 21.3
Location Promiod (Aosta
Valley, Italy), own remote observatory
Date 26 October
2019