Visibility I / V
The rarely imaged planetary nebula Sharpless 1-89 (SH1-89, PNG 089.8-00.6) can be found in the constellation Cygnus quite close to the more imaged North America nebula.
The central area of the nebula is about 1 arcminute in size, the dim outer parts extend farther, the nebula as a whole is about 5 arcminutes in diameter. I also call the fog the Moth nebula.
The structure of the nebula is bipolar, where the brighter core region is well visible in the 0III band and the outer dim parts are better visible in H-Alpha. An interesting detail is that tail visible in h-alpha.
As the first image, the image assembled with the HOO palette, H-alpha in the red channel and OIII in the green and blue channels. I collected light for H-alpha for 16h 50min and for OIII channel for 15h.
As another h-alpha channel, the nebula of the Milky Way can also be seen in the picture
As the third OIII channel, darker structures can be distinguished in the center of the fog and the dark dust areas at the ends stand out well, especially the upper one is very clearly defined.
The fourth image from the negative h-alpha stack, the tail stands out better here
The fifth picture from the negative OIII stack, I stretched that so that those dim outer parts are visible.
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