Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 97  ·  NGC 3587  ·  Owl Nebula  ·  PK148+57.1
M97 rework with additional data, Christoph Lichtblau
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M97 rework with additional data

M97 rework with additional data, Christoph Lichtblau
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M97 rework with additional data

Equipment

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Description

After new collimation of my edge 11, I tested my new Chroma OIII 3nm filter on M 97. Even that filter was extremely expensive, I can say that I am happy with it. Through my light polluted backyard sky, I could catch up the faint halo of the owl, which was my hope. In addition to new OIII data I also captured new luminance and h alpha subs, which payed out. Hope you like the new version.

CS, Christoph

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Sky plot

Sky plot

Histogram

M97 rework with additional data, Christoph Lichtblau