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  ·  Lower Sword  ·  M 42  ·  M 43  ·  Mairan's Nebula  ·  NGC 1973  ·  NGC 1975  ·  NGC 1976  ·  NGC 1977  ·  NGC 1980  ·  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  ·  the Running Man Nebula
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Great Orion Nebula HaRGB, David Lindemann
Great Orion Nebula HaRGB
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Great Orion Nebula HaRGB

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Description

Great Orion Nebula - M42 - HaRGB - TrueHDR - LRGB composition

Captured 11/13/2013 with Takahashi FSQ106ED @f/5 530mm focal length with Apogee Alta U8300 monochrome and Astrodon H-a 5nm narrowband filter and TrueBalance RGB filters.

19 x 1s H-a unbinned = 19s

19 x 4s H-a unbinned = 1m16s

9 x 30s H-a unbinned = 4m30s

4 x 60s H-a unbinned = 4m

5 x 120s H-a unbinned = 10m

3 x 300s H-a unbinned = 15m

3 x 600s H-a unbinned = 30m

3 x 1200s H-a unbinned = 1h

4 x 300s R binning 2x2 = 20m

4 x 300s G binning 2x2 = 20m

4 x 300s B binning 2x2 = 20m

Total exposure time 3h6m5s

Software: MaximDL to capture, calibrate, register, normalize, data reject and combine - Photoshop CS5 and PixInsight for non-linear streching and color combine.

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Great Orion Nebula HaRGB, David Lindemann