NGC7023 Iris nebula
Posted: Tue May 11, 2021 9:43 pm
I really like this reflection nebula and after accumulating frames here and there - from last November - and again now in May as Cepheus come around again have finally accumulated enough to make for a decent enough image.
Newtonian PDS200, Baader flattener (F 5.0), Pegasus cube focuser all on an Ioptron CEM70 mount with guiding (+SC -controlled dithering) via PHD and a f = 160mm guide scope with an ASI 120 MM camera.
ASI294MC PRO camera run at -10C and above set up at 0.95 arcsec/ pixel. Bortle 6 skies (no moon)
171 x 40s exposures at gain 124 - Captured in SC and images preprocessed and processed in PixInsight.
(Just to note that he last 2 months I have been using SC4 - 64bit Beta version and that - for my set up anyway - it has proved very reliable and a number of the new features - especially the focusing and image centering- have made it even better to use!)
I used to think it was called 'Iris' as in the iris of a blue eye --- but now that I can make out the dusty petals I suppose it to be an Iris flower?
TimH
Newtonian PDS200, Baader flattener (F 5.0), Pegasus cube focuser all on an Ioptron CEM70 mount with guiding (+SC -controlled dithering) via PHD and a f = 160mm guide scope with an ASI 120 MM camera.
ASI294MC PRO camera run at -10C and above set up at 0.95 arcsec/ pixel. Bortle 6 skies (no moon)
171 x 40s exposures at gain 124 - Captured in SC and images preprocessed and processed in PixInsight.
(Just to note that he last 2 months I have been using SC4 - 64bit Beta version and that - for my set up anyway - it has proved very reliable and a number of the new features - especially the focusing and image centering- have made it even better to use!)
I used to think it was called 'Iris' as in the iris of a blue eye --- but now that I can make out the dusty petals I suppose it to be an Iris flower?
TimH