M 98 is a spiral galaxy visible in the northern constellation Coma Berenices, belonging to Virgo Cluster of galaxies.
Its apparent dimensions are 9.8’x2.8’, so considering the estimated distance of 52 million light years we have a disc diameter of about 150000 light years, bigger than our Milky Way.
This galaxy shows a disc plane highly inclined (83°) but two dominating spiral arms can be easily recognized.
Several other bright and faint galaxies are visible in the background.
(text adapted from "The Cambridge Photographic Atlas of Galaxies")
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 40x300" bin3 -15C
R 17x300" bin3 -15C
G 16x300" bin3 -15C
B 16x300" bin3 -15C
Total integration 7h25'
Acquisition Voyager, PHD2
Processing Pixinsight 1.8, Photoshop CS5, StarXTerminator, NoiseXTerminator, BlurXTerminator
Location Promiod (Aosta Valley, Italy), own remote observatory
Date 17/18/20 February 2023