This is my most recent effort with narrowband imaging
Target:
HD198626 (centered on the Eastern and Western Veil nebulae)
Camera rotation @ 150º
FOV = 5º 25' 36" x 3º 37' 19"
Location:
NJ Pine Barrens on Aug 18 2022
Moon at 51% illumination and reached 15% altitude at 12:30am
Equipment:
Redcat51 refractor (250mm FL)
ZWO ASI 2600 MC Pro (imaging camera)
iOptron CEM 26EC mount
ASIair Plus system with EAF
ZWO Mini guide scope with ZWO ASI 224MC camera
Imaging Sequence 1:
Optolong 2" SII filter
35x300s 0ºC 100gain Bin1 (2hr 55min total)
Imaging Sequence 2:
Optolong 2" L-Extreme Dual Band HaOIII filter
9x300s 0ºC 100gain Bin1 (45min total)
Note: I intended to collect more data but ran out of time and battery life
Calibrated, Registered, Normalized and Integrated in AstroPixelProcessor
Post-processed in PixInsight
Comments:
The SHO palette is not representative of the true color of the object. The palette is useful to create a map of the emission frequencies.
Hydrogen emissions are the most prevalent (green)
Strong oxygen emissions are blue
Areas with both oxygen and hydrogen are cyan
Areas with both hydrogen and sulfur are yellow
Here are the three channels in monochrome (stars removed)
Ha
OIII
SII
