This is my latest version of the gorgeous face-on spiral ring galaxy Messier 94 approximately 15 million light-years away in the constellation Canes Venatici. Seyfert galaxies are a class of active galaxies with lots of star formation and also known as starburst galaxies. M94, also known as NGC 4736, is about 35,000 LY across, however, the bright nucleus, inner dust lanes, and inner ring is much smaller. It has been suggested that the outer ring formed as a result of a M94 incorporating a companion galaxy into it. The dust lanes are much more prominent on the bottom side possibly because that side is closer to us.
This version shows much better detail than my other version from 2017. It is quite interesting how the core starts off as a brilliant yellow and then transitions to a bright blue moving towards the inner ring. The faint outer ring as a slight blue cast to it indicated possible star formation. I did not do much star reduction as I really enjoy the colorful starfield. In addition, the numerous small odd-shaped blips in the field of view are galaxies much further away.
Higher Quality:https://www.astrobin.com/nkgikf/?nc=collection&nce=712
Dates: 4-27-25, 4-28, 4-30
Camera: ZWO ASI1600MM-Pro
Telescope: Astro-Tech AT115EDT 115mm Refractor Telescope
Barlow: None
Focal Length: 805mm (644mm w/ FR)
f/7
Focal Reducer: 0.8x AstroTech Field Flatterner/Focal Reducer
Mount: Orion Sirius
Filter Wheel: ZWO
EFW 8 x 1.25"
Filter: ZWO R, G, B, L
Focuser: ZWO EAF
Autoguiding: ASI120 Mini attached to an Agena 50mm Guide Scope/ZWO 60mm Guidescope
Exposure: L 269 x 90, R 62 x 90, G 57 x 90, B 62 x 90 (11h 43m)
Gain: 139
Offset 20
Sensor Temp: -10 C
Processing: NINA, PixInsight, Photoshop, BlurXTerminator, StarXTerminator, NoiseXTerminator, GraXpert, Bill Blanshan Stretching, Topaz Denoise.
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