Dengel Hartl 5, vdB 152 , HH 450 and SNR G 110.3 (Roger Nichol)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: B175 · HD210401 · HD210640 · HD210884 · HD210902 · HD211319 · HD211867 · LBN 528 · LBN 531 · LBN 538 · LDN 1217 · LDN 1219 · PK111+11.1 · VdB152

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Dengel Hartl 5, vdB 152 , HH 450 and SNR G 110.3

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Dengel Hartl 5, vdB 152 , HH 450 and SNR G 110.3

There's a lot going on in this part of Cepheus region, requiring a mix of techniques to capture it all.

Dengel Hartl 5 is the emission nebula showing Ha and Oiii. This proved to be highly elusive to capture, so I kept adding more and more dual-narrowband data until I felt I had enough to edit it. The dark nebula to its left is Bok globule B175 with the bright blue reflection nebula vdB 152 at its head. Within vdB 152, above the dark Bok Globule, is a Herbig Haro object HH450, being a glowing red jet emitted from a newly forming star. The curved strings of Ha in the upper left are supernova remnants with the catchy name SNR G 110.3+11.3.

The emission nebula, supernova remnants and Herbig Haro object needed the dual narrowband filter to bring them out - 43 hours of 1200s exposures. The dark nebula needed a wideband filter to capture its detail, so a separate L-Pro stack (14 hours of 600s exposures) was used to capture that and the fainter dust clouds around it. These were merged using PixelMath . A separate stack of short L-Pro exposures was used for the stars.

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Status	Advanced success
Started	...
Astrometry.net job	6365583
PixInsight job	6L8Y9KX9QE94U7VYN67UAPUDFF5KORJ3
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	22h14m12s.46
RA (top/left)	22h15m06s.91
RA (top/right)	22h30m35s.49
RA (bottom/right)	22h13m09s.20
RA (bottom/left)	21h58m49s.49

Dec (center)	+70°55′29″.10
Dec (top/left)	+69°29′06″.0
Dec (top/right)	+71°30′27″.1
Dec (bottom/right)	+72°21′50″.9
Dec (bottom/left)	+70°15′17″.2

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Dengel Hartl 5, vdB 152 , HH 450 and SNR G 110.3

Dengel Hartl 5, vdB 152 , HH 450 and SNR G 110.3

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Dengel Hartl 5, vdB 152 , HH 450 and SNR G 110.3

Dengel Hartl 5, vdB 152 , HH 450 and SNR G 110.3

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