M17 – Omega Nebula

M17HST_0-e0f2ad0


Jonathan Blake

Andover, UK

Ritchey–Chrétien 8, Starlight Xpress Trius-694, HEQ5 mount.
Guided – 11 x 300s Ha and 6 x 300s OIII and SII images stacked using and stretched Nebulosity with bias and flats.

aka the Swan Nebula, Checkmark Nebula, and the Horseshoe Nebula. 5000 – 6000 ly away in Sagittarius.

2015-06-29T00:00:00

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