The Horsehead nebula region (Francesco Meschia)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 48 sig Ori · 50 zet Ori · Alnitak · B33 · Flame Nebula · Horsehead nebula · IC 432 · IC 434 · IC 435 · NGC 2023 · NGC 2024 · Orion · Orion B · PGC 178620 · Sh2-277 · The star Alnitak (ζOri) · The star σOri · VdB51

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The Horsehead nebula region

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The Horsehead nebula region

For some reason the nebular region around Alnitak seems very festive to me. Due to the strict COVID-19 lockdown in the Bay Area, I imaged this region from my backyard under Bortle 7 sky, using NINA to orchestrate a multi-night capture for a total of over 6 hours of data. The original images suffered from strong light pollution gradients and circular reflections from Alnilam and presumably from Theta Orionis, which were quite unsightly. I corrected both of them using Vicent Peris’s multiscale gradient technique, using wide-field imagery kindly provided by Giorgio Ferrari to model the background.

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Status	Advanced success
Started	...
Astrometry.net job	4112557
PixInsight job	QHBYPKZ3V6J4R1ITGJRMUVK98SYTCQQO
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	05h40m52s.41
RA (top/left)	05h38m32s.14
RA (top/right)	05h38m36s.55
RA (bottom/right)	05h43m12s.87
RA (bottom/left)	05h43m08s.50

Dec (center)	-02°20′48″.0
Dec (top/left)	-01°29′28″.3
Dec (top/right)	-03°12′54″.3
Dec (bottom/right)	-03°12′07″.2
Dec (bottom/left)	-01°28′41″.6

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The Horsehead nebula region

The Horsehead nebula region

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