About image
NGC 4565 is a spiral galaxy visible in the Coma Berenices constellation.
Due to its edge-on view and the presence of a very evident dust lane near the core region, it is also known with the nickname “Needle Galaxy”.
Its estimated distance is in the range 40/60 million light years and the real dimension is around 162000 light years.
Looking at carefully the disc, it could be noted some warp on the opposite edges: this could be the effect of the interaction with the small satellite galaxy IC 3571 visible on the left side of NGC 4565.
(north is on the left side of the image)
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 45x300" bin3 -15C
R 15x300" bin3 -15C
G 15x300" bin3 -15C
B 15x300" bin3 -15C
all gain 100
Total integration 7h30'
Acquisition Voyager, PHD2
Processing Pixinsight 1.8,
Photoshop CS5, StarXTerminator, NoiseXTerminator, BlurXTerminator
SQM-L 21.20
Location Promiod (Aosta
Valley, Italy), own remote observatory
Date 15/18 February, 12 April 2024