About image
M94 is a 9 magnitude spiral galaxy in Canes Venatici constellation, located at a distance of about 16 million light years.
The central component of this galaxy is an early-type Sab galaxy, which shows a very bright nucleus and hints of spiral arms characterized by flocculent pattern of filament of gas and dust with some star forming regions.
Around the central component, it is visible a larger and much fainter halo which shows also some active areas: so astronomers did hypothesis that this outer ring was formed by accretion of a companion galaxy.
Several other remote galaxies are visible in the field, some of them also through M94 disk.
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 79x300" bin3 -15C
R 14x300" bin3 -15C
G 14x300" bin3 -15C
B 14x300" bin3 -15C
all gain 100
Total integration 10h5'
Acquisition Voyager, PHD2
Processing Pixinsight 1.8,
Photoshop CS5, StarXTerminator, NoiseXTerminator, BlurXTerminator
SQM-L 21.15
Location Promiod (Aosta
Valley, Italy), own remote observatory
Date 20 March, 18 April 2023