Witch Head Nebula from Bortle 2 (Ryder Cobean)

Celestial hemisphere: Southern · Constellation: Eridanus (Eri) · Contains: 63 Eri · 65 Eri) · 65 psi Eri · 69 Eri) · 69 lam Eri · HD31110 · HD31298 · HD31469 · HD31504 · HD31543 · HD31596 · HD31624 · HD31625 · HD31651 · HD31654 · HD31655 · HD31740 · HD31749 · HD31770 · HD31820 · HD31821 · HD31822 · HD31899 · HD31921 · HD31935 · HD31936 · HD31952 · HD31984 · HD32007 · HD32043 · And 57 more.

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Witch Head Nebula from Bortle 2

Revision title: Continuum Subtraction-Added Hydrogen Alpha

Powered byPixInsight

Witch Head Nebula from Bortle 2

Revision title: Continuum Subtraction-Added Hydrogen Alpha

Shot at Tucson Amateur Astronomy Association's Chiricahua Astronomy Complex in December's new moon, with additional Ha added from my Phoenix backyard. This one was tricky - not a lot of dynamic range; I think I probably should have exposed the broadband longer, but it worked out in the end. Another I'd been sitting on for forever but time to clear out and let nebula season go.

Narrowband added via continuum subtraction method detailed here: https://www.nightphotons.com/guides/advanced-narrowband-combination

Original
Final
B

B

Title: Continuum Subtraction-Added Hydrogen Alpha

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Status	Advanced success
Started	...
Astrometry.net job	9219871
PixInsight job	H9NEIIQ8VPKJF8KA2A2DN27PKXFFB9U3
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h02m50s.53
RA (top/left)	05h09m02s.52
RA (top/right)	04h51m16s.90
RA (bottom/right)	04h56m33s.12
RA (bottom/left)	05h14m30s.82

Dec (center)	-08°18′07″.2
Dec (top/left)	-05°26′45″.8
Dec (top/right)	-06°47′11″.7
Dec (bottom/right)	-11°09′06″.1
Dec (bottom/left)	-09°47′52″.1

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Witch Head Nebula from Bortle 2

Revision title: Continuum Subtraction-Added Hydrogen Alpha

Witch Head Nebula from Bortle 2

Revision title: Continuum Subtraction-Added Hydrogen Alpha

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Witch Head Nebula from Bortle 2

Revision title: Continuum Subtraction-Added Hydrogen Alpha

Witch Head Nebula from Bortle 2

Revision title: Continuum Subtraction-Added Hydrogen Alpha

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