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.
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