Astrophotography: Capturing Thor's Helmet Nebula in Ha and OIII
This is NGC 2359 (also known as Thor’s Helmet). I collected 13.5 hours of data on it starting back in December and finishing a month later. This object is nearly 12,000 light years from Earth. The central star is thought to be on its death bed and on the verge of exploding into a supernova.
I went with 100% Ha in Red and 100% OIII in Green and Blue. Here is more info on the hardware and software:
Target:
Thor’s Helmet
Leo Triplet
Imaging Telescope:
Explore Scientific 127mm ED Refractor (952 focal length)
Focuser:
MoonLite 2.5″ Focuser with Motor Auto-Focus
Focal Reducer:
Orion .8 Focal Reducer
Mount:
Celestron CGX
Polar Alignment:
QHYCCD PoleMaster
Imaging Camera:
ZWO ASI1600MM-Cool
Frames:
Thor’s Helmet
Astronomik Ha: 114×240″ (gain: 139, offset: 21)
Astronomik OIII: 88×240″ (gain: 75, offset: 15)
Integration: 13.47 hours
Leo Triplet
Optolong L-Pro: 240×60″ (gain: 0, offset: 10)
Integration: 4.0 hours
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: https://astrob.in/386024/0/
#astronomy #astrophotography #supernova
atoll logiciel
