The Skywatcher 200 Newtonian telescope on the homemade telescope mount along with the Artemis 285 camera has a FOV of about 30 arc minutes. I've had to do a 2x2 mosaic of the region, and as you can see the CTB1 nebula only just fits on here!
Also known as Abell 85, SNR G116.9+00.1, LBN 576
Data was gather over 6 moon free nights. 4 of these where perfect nights where i collected 20 or so 1200s frames. The other two nights were less good. I'm not certain on the total exposure time, but it is certainly greater than 20 hours.
View full sized image of CTB1 Supernova remnant
cCaptured in maxim and processed in photoshop
This image was autoguided using my homemade off axis guider with Lodestar.
Imaged with my homemade telescope mount
Exposure Details :
Astrodon 3nm Ha Coma Corrector 60x1200s on 200 @ F5 f.l. 1000 with Artemis 285 camera
Equipment:
Curdridge Observatory, Southampton,UK