DeepSkyHosting

M57 planetary imaging

alesterre
751305
Category:Deep Sky
Published:
2420
M57 planetary imaging
Resolution:
1907x1445 px
File size:
1145 KB

Photo description / processing

I did a bit of experimenting with lucky imaging. Layer 1: 90% of the best frames out of 7,811 (about 7,000) at 1 second each at maximum gain. Processed in AutoStakkert!, resampled 2x, deconvolution in Registax. Layer 2: color data from the previous image in "Merge" mode in GIMP with transparency around 30–40%. Layer 3: same as Layer 2, but in "HSL Color" mode. The atmosphere wasn’t very cooperative, and guiding was terrible for most of the night—still not sure what the issue is, maybe something with the guide mount or the mount itself.

Technical information

Telescope/Lens
Sky-Watcher 130pds
Camera
QHY5III178M Cool
Mount
HEQ5 Pro
Guide Scope
Svbony 60/240mm
Guide Camera
Qhy5L-II-c
Accessories
Baader MPCC Mk3, Svbony MFW, Svbony LRGB filters
Software
APT, PHD2, APP, AutoStakkert!, Lightroom, Registax, FitsWork, GIMP
Location
Старые Кены, Россия

Light pollution

Yellow, Bortle 5 zone

Exposure

  • 7000 × 1″ · ISO/Gain: 51 · L
  • 50 × 60″ · ISO/Gain: 0 · R
  • 40 × 60″ · ISO/Gain: 0 · G
  • 48 × 60″ · ISO/Gain: 0 · B
  • 30 × 120″ · ISO/Gain: 15 · Ha

Total exposure: 5 h 15 m

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