Cepheus to Cassiopeia is an absolutely gargantuan image spanning across huge swaths of our home galaxy, showing many different narrowband nebula that are very faint and rarely imaged together. This large image which covers several hundred times the size of the full moon provides context on how these different faint nebula interact with eachother.
This image is a 35 panel mosaic captured in SHO narrowband, and it contains a huge number of the very faint emission nebulae which populate this part of the northern milky way. There is the flying bat nebula, the squid nebula, the elephant trunk nebula, the wizard nebula, the bubble nebula, the lobster claw nebula, the cave nebula, the question mark nebula, the ghost of Cassiopeia, and the pacman nebula to name a few.
This image required over 80 hours of exposure to produce, which took place over three consecutive weeks. This image is more of a galaxy image than it is a nebula image, because it does more to illustrate the interactions of many nebulae at once. It is also worth noting that these objects are rarely ever imaged together, since many of them are very faint.
Exposure details per panel:
-60*300s Oiii for the squid nebula
Total exposure: 83hrs 55min
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