NGC 3521 Galaxy in a Bubble

CROP

L 13X900

R 4X600

G 4X600

B 4X600

C8HD su AdvancedVX
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 2017