NGC 2685
About image
The polar-ring galaxy NGC 2685 in Ursa Major is also known as the Helix Galaxy because it shows several polar rings wrapped around the major axis of the central galaxy.
It is thought that these polar rings are being formed when two galaxies interacts gravitationally.
A further prominent feature of NGC 2685 is an outer equatorial ring which exceeds the polar rings in size and has the same orientation as the spindle-like central galaxy.
The distance of NGC 2685 is around 46 million of light years.
Technical data R 16x300" bin3 -15C all gain 100
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 LRGB
Guiding system ZWO OAG-L with guide camera ASI 174MM
Exposure details L 96x300" bin3 -15C
G 16x300" bin3 -15C
B 16x300" bin3 -15C
Total integration 12h
Acquisition Voyager, PHD2
Processing Pixinsight 1.8, Photoshop CS5, StarXTerminator, NoiseXTerminator, BlurXTerminator
SQM-L 20.60
Location Promiod (Aosta Valley, Italy), own remote observatory
Date 7/9/10 November 2024
© Roberto Marinoni 2019 - All rights reserved