Automatic focus by SGP at start and at approx 40 minute. Focus with Robofocus on the primary focuser.
|Imaging Optics||Celestron EdgeHD 11 at f/10|
|Guiding Software||MetaGuide with dithering from SGP|
|Guiding Mode||Off-axis guiding with Hutech OAG5|
|Imaging Camera||Atik 383L+|
|Focus||SGP and RoboFocus on the primary focuser - no mirror locks used - nothing manual|
|Exposure Time||8 hours: half 15m subs and half 30m subs|
|Image Scale||0.40" per pixel|
|Raw FWHM||Down to 1.7" in 30m subs|
|Image Processing||Calibration and stack in custom software. Levels stretch in PhotoShop. No other processing or sharpening.|
|Other Software||PECTool, TheSkyX Pro for best guidestar selection with field of view indicator (FOVI)|
|Other Hardware||Pyxis OAG Rotator for best guidestar, Telegizmos 365 cover, Long usb cable to outside setup|
|Filter||Astrodon 3nm H-alpha|
Hyperstar image with ASI-1600MM Cool, unguided stack of 60x30s exposures.
1.4"/pixel with fwhm approximately 3.5"
Baader f/2 Highspeed 2" H-Alpha filter. Dithered with SGP using direct mount (unguided).
ASI settings: Gain 50, offset 20, USB Limit 40, Temp -10C, Raw16 format.