M42 (The Great Orion Nebula) in Ha, S2 & O3 (Derek Spratt)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 41 Ori A) · 41 Ori C · 41 Ori D · 42 Ori) · 43 Ori) · 44 Ori) · Great Orion Nebula · IC 420 · Lower Sword · M 42 · M 43 · Mairan's Nebula · NGC 1973 · NGC 1975 · NGC 1976 · NGC 1977 · NGC 1980 · NGC 1981 · NGC 1982 · Orion Nebula · The star 45 Ori · The star Hatysa (ι Ori · The star Mizan Batil I (c Ori · The star Mizan Batil II (θ2 Ori · The star Trapezium (θ1 Ori A · The star θ1 Ori C · The star θ1 Ori D · Upper Sword · the Running Man Nebula

M42 (The Great Orion Nebula) in Ha, S2 & O3, Derek Spratt

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M42 (The Great Orion Nebula) in Ha, S2 & O3

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M42 (The Great Orion Nebula) in Ha, S2 & O3

Bortle 7 Urban Skies - tracking was good at 0.7as on a 2.4as/pixel scale. M42 never rises more than 35 degrees at my latitude so it is hard to get a really crisp image but I am happy with the result anyway.

In the color image Hydrogen-Alpha is mapped to Luminance, Sulfur 2 is mapped to Green and Oxygen 3 is mapped to Blue for a unique perspective on things ...

This is part of a 4 image set that is aimed at highlighting the different features in each spectral frequency as follows:

M42 in Ha, S2 & O3: https://www.astrobin.com/7eydzj/
M42 in Ha only: https://www.astrobin.com/e39mbr/
M42 in S2 only: https://www.astrobin.com/e1p9zv/
M42 in O3 only: https://www.astrobin.com/i92pmo/

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Status	Basic success
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Astrometry.net job	8811962
PixInsight job	n/a
PixInsight queue size	n/a
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M42 (The Great Orion Nebula) in Ha, S2 & O3

M42 (The Great Orion Nebula) in Ha, S2 & O3

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M42 (The Great Orion Nebula) in Ha, S2 & O3

M42 (The Great Orion Nebula) in Ha, S2 & O3

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