Pacman Nebula
Description
Bright emission nebula in the constellation Cassiopeia, with beautiful nebulous mountains rich in hydrogen gas. The strong blue center is representative of the regions in which Oxygen III is abundant but does not show what this nebula would look like to the human eye but instead has been processed according to artistic preference and the want to show where certain gases are found within the nebula.
The ones among you may have noticed the absolutely terrible stars in this image, which is due to bad telescope collimation. This is why I am including a starless image here to show off the beautiful nebula, without the horrid and distracting stars.
Note that this issue has been fixed, so hopefully, this won’t be present in future images.
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1.4h Ha
1h Sii
2.25h Oiii -
120 gain, 0°C, 2x2 bin
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Imaging cam - ZWO asi294mm pro
Filter - Baader CMOS-optimized 6.5nm SHO filters
Guiding cam - ZWO asi290mm mini
Imaging scope - Celestron edge 8HD
Guidescope - Celestron OAG
Mount - EQ6-R Pro
NINA
Stacked and processed in Pixinsight and Photoshop
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Montreal, Canada (Bortle 9)
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November 9th, 2022