Here's 8h 50min of exposure with HaLRGB. There's only 1h 40min of luminance so the background galaxies is not quite well visible. But I think I'm done with this one...
Full size in Astrobin.
23 Mar 2013
PK 164+31.1
Jones-Emberson 1 (PK 164+31.1) is a 14th magnitude planetary nebula in the constellation Lynx at a distance of 1600 light years. It is a larger planetary with low surface brightness. The 16.8-magnitude central star is very blue white dwarf.
Here's 8h 50min of exposure with HaLRGB. There's only 1h 40min of luminance so the background galaxies is not quite well visible. But I think I'm done with this one...
Full size in Astrobin.
Here's 8h 50min of exposure with HaLRGB. There's only 1h 40min of luminance so the background galaxies is not quite well visible. But I think I'm done with this one...
Full size in Astrobin.
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