Imaging telescopes or lenses: Takahashi TOA-130 APO Refractor
Imaging cameras: QSI 6162 monochrome
Guiding cameras: Starlight Xpress Lodestar Off Axis Guider
Software: Adobe Photoshop 2020 · Sky Safari Pro · PHD2 Guiding 2.6.6 PHD2 · Topaz Denoise DeNoise
Filters: Chroma Blue · Chroma Green · Chroma Red · Chroma OIII 3nm O3 · Chroma Ha 5nm Chroma Ha · Chroma SII 5nm Chroma SII
Accessory: Kendrick Standard Dual Channel Controller
Dates:June 5, 2020
Frames:
Chroma Blue: 10x180"
Chroma Green: 10x180"
Chroma Ha 5nm Chroma Ha: 11x1200"
Chroma Red: 10x180"
Chroma SII 5nm Chroma SII: 10x1200"
Chroma OIII 3nm O3: 17x1800"
Integration: 17.0 hours
Avg. Moon age: 14.43 days
Avg. Moon phase: 99.87%
Astrometry.net job: 3599930
RA center: 17h 19' 16"
DEC center: -35° 49' 4"
Pixel scale: 1.243 arcsec/pixel
Orientation: 166.783 degrees
Field radius: 0.830 degrees
Resolution: 3754x3000
Locations: Burwood, Melbourne, Victoria, Australia
Data source: Backyard
At 5,500 light years distant, the Cat's Paw nebula NGC 6334 is an emission nebula with a red colour that originates from an abundance of ionised hydrogen atoms. Alternatively known as the Bear Claw Nebula, stars nearly ten times the mass of our Sun have been born there in only the past few million years. Pictured here is a deep field image of the Cat's Paw Nebula in light emitted by hydrogen, oxygen, and sulphur. (text from Apod).
Third finished image from the big Tak/QSI 6162 combo now that the field field is flat (after considerable re-machining of the focuser faces).
I wanted to feature the abundance of Ha in this region, so have deliberately allowed the background Ha to show through. To me it resembles a genie pouring out of the magic lamp!
Ha - 11x1200secs
O3-17 x 1800 secs
S2- 10x1200secs
RG&B 10x180 secs ea.
Captured via Ekos on a Mac.
Processed in APP & PS CC 202 with Topaz NR
Taken from my light polluted suburban backyard in Melbourne, Victoria.
| Astronomical Society of Victoria (ASV) |
| Fine Art Astrophotography |
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