NGC 4490, also known as the Cocoon Galaxy https://en.wikipedia.org/wiki/NGC_4490

R 135minuti

G 105minuti

B 105minuti

C8HD su AdvancedVX
CROP 16.6 x 11.7 arcmin of FOV 0°44'x 0°33'
resolving 0.78"pix
1421mm f/7 Celestron Reducer
Sbig STF8300M
AO SX and Lodestar x2
Location : Alpi Friulane January 2017