Previously, I captured 5hrs of Ha, SII, OIII data on the wizard nebula. I had an autoguiding error in the middle of the night and did not capture the planned Oiii data. We had a clear evening to capture more data. Rather than simply finish the plan on Oiii at gain 139 using 180 second exposures, I ran a test of several different gain and exposure durations.
I will post my camera settings comparison separately, but for now, I combined all the Oiii data here to complete the Wizard Nebula in the SHO pallet.
| imaging camera | ZWO ASI1600MM Pro |
| guide camera | ZWO ASI290mm Mini |
| mount | Skywatcher EQ6-R pro |
| telescope | Explore Scientific ED102 APO |
| exposure settings | exposure: 180s gain: 139 temp: -15c |
| stacking | 42 Ha lights – 2.1 hrs 45 SII lights – 2.25 hrs 37 OIII lights – 2.2 hrs 30 darks 30 flats 30 dark flats |
| processing | PixInsight |
Ha data with DBE & stretch applied 
SII data after DBE & stretch 
Oiii data after DBE and stretch
