M17 – Swan Nebulae

M17 – the Swan Nebulae is about 5000 light years away and its about 15 light years across.
M17 Final

This image is taken in narrowband – 3nm HA, OIII, SII. Ha is mapped to Red, OIII is mapped to Green and SII is mapped to Blue. This is 66 subframes, 900 s each @ -20C, 2×2 Bin.

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