M 98

About image 

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")

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 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
SQM-L       21.14   
Location       Promiod (Aosta Valley, Italy), own remote observatory
Date           17/18/20 February 2023


© Roberto Marinoni 2019 - All rights reserved