Filters used:
L/R/G/B/Ha 
Image: NGC3521 - Galaxy in a Bubble
Scope - Mount: Celestron Edge
hd14
@ f/11- Celestron CGE Pro mount
Constellation: Leo
Camera:
ZWO ASI6200mm
Imaged at: Anza, CA
Total Exposure Time: 130 minutes
total (LRGBHa)
Date imaged: Apr 32, 2022
Approximate FOV: 21' x 15' (cropped)
Guided?: PHD
w/ASI174
For further information, see: This galaxy is surrounded by a bubble of
stars.