The Spider & The Fly, February 22 2023
The Spider Nebula, or IC417, and the Fly Nebula, or NGC1931, are emission nebulae in the constellation Auriga.
As with the Phantom of the Opera Nebula, I could only find an Italian language Wikipedia page, but there is a separate Wikipedia page for the Fly Nebula with some additional information.
This image uses a similar HSO colour mapping to what I described for the Phantom of the Opera Nebula, where H-alpha data is mapped to the red channel, SII to green and OIII to blue, as well as the RGB data for star colour representation.
You can view this image in the WorldWideTelescope by clicking here.
Equipment details:
Mount: Skywatcher HEQ5 Pro
Telescope: Skywatcher Evostar 72ED
Telescope Accessory: OVL Field Flattener
Telescope Accessory: Gerd Neumann Camera Tilt Unit
Camera: QHY294M Pro
Filter Wheel: QHY Colour Filter Wheel
Filters: Antlia EDGE Series 4.5nm SHO Filters, Antlia V-Pro Series LRGB Filters
Guide scope: Skywatcher 9x50 finder guide scope
Guide camera: ZWO ASI178MC
Capture details:
Frames: 36
Exposure per frame: 600" (x6 H-alpha, x6 OIII, x6 SII), 60" (x6 red, x6 green, x6 blue)
Total Exposure Time: 3 hours 18 minutes
Camera Control Software: AstroPhotography Tool
Guiding Control Software: PHD2
Processing details:
Preprocessing Software: Starnet++
Stacking Software: AstroPixelProcessor
Image Manipulation Software: Adobe Photoshop
Downloadable Raw Data Available
Logged in users can download the unprocessed integration masters for this image.
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