sv550 gso203

Comparison refractor : reflector.
Fitted a second gemini focuser to the gso. Not a good start. Wasted time until I discovered that I hadn't tightened the Crayford focus. DUH... It works a lot better with a bit of friction.

sv550 122 fl with 0.8 reducer: 683mm
gso203 fl with gpu cc 1000mm

open cluster m36 in auriga
atr533c on sv120    19x3min @ hcg100

atr533c on gso203    36x3min @ hcg100

Interesting to compare with Seti-Astro only version. AI meets old-school.

Then, by way of filling in time, to see how the sv did on colour:

emission and reflection nebulae ic405 flaming star in aurigo
atr533c on sv122    34x4min @ hcg100

Oh, and a few frames on something faint before the cloud came. But yes. I'll revisit.

galaxy ngc3718 and friends in ursa major
atr533c on gso203    7x4min @ hcg100