M100 is a spiral galaxy in Coma Berenices constellation: its apparent dimension is 7.4’x6.3’ and magnitude 10.1.
Its estimated distance of 55 million light years was determined in 1993 through the Hubble Space Telescope.
M100 has two big arms which show dust structures for all their lenght: seven supernovae stars were observed in this galaxy from the years 1901 to 2020.
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 32x300" bin3 -15C
R 15x300" bin3 -15C
G 16x300" bin3 -15C
B 15x300" bin3 -15C
Total integration 6h30'
Acquisition Voyager, PHD2
Processing Pixinsight 1.8, Photoshop CS5, StarXTerminator, NoiseXTerminator, BlurXTerminator
Location Promiod (Aosta Valley, Italy), own remote observatory
Date 13/14 February 2023