Sh2-1 and Sh2-7 rarely imaged Halpha emission at Pi Scorpio (Dave Erickson)

Celestial hemisphere: Southern · Constellation: Scorpius (Sco) · Contains: 1 b Sco · 2 A Sco · 3 Sco · 4 Sco · 6 pi. Sco · 7 del Sco · Dschubba · Part of the constellation Scorpius (Sco) · Sh2-1 · Sh2-7 · The star 1Sco · The star 2Sco · The star 3Sco · The star 4Sco · The star Dschubba (δSco) · The star πSco

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Sh2-1 and Sh2-7 rarely imaged Halpha emission at Pi Scorpio

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Sh2-1 and Sh2-7 rarely imaged Halpha emission at Pi Scorpio

Sh2- at Pi Scorpio and Sh2-7 at Delta Scorpio:

I have worked on this a few times over the years and finally have something somewhat satisfying.

This image is an unusual combination of filters using subs of (6)Halpha at 1200",(4)Hbeta at 900", (4) Yellow at 360", and (4)Red at 360". I used Hbeta as the blue channel, generated the green channel with pixel math using yellow and red, and the red channel as Halpha. Then combined the Halpha and Hbeta as a luminance channel. This tends to highlight the Halpha and sort of represents the stars.

Sh2-1: Also known as Sharpless 1, is listed as a reflection nebula in the constellation of Scorpius, however it contains a significant amount of hyhrogen and images well with both Hbeta and Halpha each showing different nebula. The B-type star Pi Scorpio is in the center of the nebula.

Sh2-7:I a large and very faint nebula around the star Delta Scorpii a B-type star. There is some reflection nebula around the star.

North is to the left...

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Status	Advanced success
Started	...
Astrometry.net job	1972663
PixInsight job	G9V0TPG4U9VJTFKZ3C7IKZVYRWM0YXB1
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	15h58m10s.9
RA (top/left)	15h48m44s.9
RA (top/right)	15h49m03s.3
RA (bottom/right)	16h08m05s.0
RA (bottom/left)	16h06m50s.9

Dec (center)	-24°21′21″
Dec (top/left)	-21°18′32″
Dec (top/right)	-27°29′03″
Dec (bottom/right)	-27°21′44″
Dec (bottom/left)	-21°12′12″

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Sh2-1 and Sh2-7 rarely imaged Halpha emission at Pi Scorpio

Sh2-1 and Sh2-7 rarely imaged Halpha emission at Pi Scorpio

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Sh2-1 and Sh2-7 rarely imaged Halpha emission at Pi Scorpio

Sh2-1 and Sh2-7 rarely imaged Halpha emission at Pi Scorpio

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