The Head of Scorpius - A Mosaic Study (Christian Koll)

Celestial hemisphere: Southern · Constellation: Scorpius (Sco) · Contains: 20 Sco) · 21 Sco) · 23 Sco) · 39 Lib · 40 Lib · 5 Sco) · 6 Sco) · 7 Sco) · 8 Sco A) · 9 Sco) · Akrab (β1 Sco · Al Niyat (σ Sco · Al Niyat (τ Sco · Alniyat I · Cor Scorpii · Graffias · IC 4592 · IC 4601 · IC 4603 · IC 4604 · IC 4605 · Iclarkrau (δ Sco · Iolil (ρ Sco · Kalb al Akrab (α Sco · M 4 · NGC 6121 · Nur (π Sco · Part of the constellation Scorpius (Sco) · The star Acrab · The star Alniyat · And 10 more.

The Head of Scorpius - A Mosaic Study, Christian Koll

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The Head of Scorpius - A Mosaic Study

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The Head of Scorpius - A Mosaic Study

Unfortunately this beautiful region only rises approximately 20 degrees above the horizon, from where I live. But I finally managed to process this propperly just recently!
The main features are the Antares/Rho Ophiuchi complex, the Blue Horsehead Nebula and the Sharpless 2-1 group of H II regions.
What I found most interresting, is a faint stream of blueish reflection nebula from Delta Scorpii all the way down to the right edge of the frame.

This is a mosaic of 4 frames comprising a stack of 100 exposures of 2 minutes each. Taken during 8 nights in rural Upper Austria with a Nikon D750 and a 135mm Sigma Art lens at f/3.5 and ISO 1600. Later a total of 11.5 hours worth of H-Alpha were added to bring out the faint HII-regions. An Astronomik clip-in filter was used with the same camera and lens.
Tracking with Astrotrac; processed with Astro Pixel Processor, StarXterminator and Photoshop.

Fine Art Astrophotography
Camera Lens Astrophotography
Deep Sky Mosaics
Nikon Imagers
Austria Astrophotography

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Status	Basic success
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Astrometry.net job	7592854
PixInsight job	n/a
PixInsight queue size	n/a
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The Head of Scorpius - A Mosaic Study

The Head of Scorpius - A Mosaic Study

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The Head of Scorpius - A Mosaic Study

The Head of Scorpius - A Mosaic Study

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