A rare SHO Orion Nebula

by ThePletch

1 Comment

  1. The sulfur is a LOT fainter than the Ha/Oiii but it’s so much less boring when you include it in a narrowband integration of this target.

    600mm FL newt at f/4 reduced 0.75x to f/3, ASI533MM pro camera.

    antlia 4.5nm SHO filters, ZWO RGB filters for stars.

    36×600″ Sii
    50×180″ Ha
    50×180″ Oiii
    10×45″ each RGB for stars
    total integration time of ~11h
    shot in B7 skies

    processed in pixinsight