Jim emailed this pic to me with the following info:
“Attached is a monochrome photo of the Rosetta nebula I took at the Winter Star Party.
Telescope TeleVue 101mm f5.4
Camera: ZWO ASI 1600 Pro, monochrome cooled camera
Filter: AstroDon 3nm H alpha
I used live stacking feature in SharpCap. 30 second subframes for a total integration of 63 minutes. SharpCap allows you to easily stretch the image.
BTW, low temperatures in the Keys were about 60 degrees F!!