About image
NGC 2683 is a spiral galaxy visible in the constellation Lynx, with an apparent size of 9.3'x2.2' and magnitude 10.6.
It is known among amateur astronomers as the UFO Galaxy, due to its shape very similar to a flying saucer seen almost side-on.
In fact, it is inclined by 78°, showing a very compact nucleus and an area rich in dust on the opposite side of the disk.
The external parts of the disk appear inclined compared to the internal parts: note a clear blue star formation area on the left edge (north is on the left).
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 LRGB
Guiding system ZWO OAG-L with guide camera ASI 174MM
Exposure details L 48x300" bin3 -15C
R 19x300" bin3 -15C
G 19x300" bin3 -15C
B 19x300" bin3 -15C
all gain 100
Total integration 8h45'
Acquisition Voyager, PHD2
Processing Pixinsight 1.8,
Photoshop CS5, StarXTerminator, NoiseXTerminator, BlurXTerminator
SQM-L 21.09
Location Promiod (Aosta
Valley, Italy), own remote observatory
Date 16/17/18 December 2023