by Chuck’s Astrophotography
2017.10.22
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The Elephant Trunk nebula is always a strange beast for me – it never turns out the same way when I capture and process it. For this attempt, I didn’t capture as much OIII as I wanted and now the weather is going to be bad for the next week. So I moved forward with the data I had. I think it’s an improvement over the last time I captured it three months ago. Here is more info:
Targets:
Elephant’s Trunk Nebula (IC 1396 )
Imaging Telescope:
Explore Scientific 127mm ED Refractor (952 focal length)
Field Flattener:
HoTech 2″ SCA Field Flattener
Mount:
Celestron CGX
Polar Alignment:
QHYCCD PoleMaster
Imaging Camera:
ZWO ASI1600MM-Cool
Ha=103x180s
OIII=60x120s
SII=84x180s
Total Time: 11.4 hours
Gain: 139, Offset: 21
Guide scope:
Orion ST80
Guide Camera:
Lodestar X2
Guide Software:
PHD2
Calibration Frames:
Darks: 50, Bias: 50, Flats: 50
Capture software:
Sequence Generator Pro (SGP)
Stacking software:
PixInsight
Post Processing:
PixInsight, PhotoShop
Dew Shield, Dew Heater Strip
Astrobin: http://astrob.in/318067/D/
