Sh2-170, Small Rosette Nebula, UHC-S, 7 Oct 2016 (David Dearden)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas)

Sh2-170, Small Rosette Nebula, UHC-S, 7 Oct 2016

A combination of being busy at work and inopportune weather has kept me from imaging for a while. Each session recently has ended prematurely due to problems with downloads from the Meade DSI IIc, and this was no exception, but fortunately this one failed pretty late in the session. I like how the colors turned out in this image.

Date: 6-7 Oct 2016

Subject: Sh2-170, “Small Rosette” Nebula

Scope: AT8IN + Antares 0.5x focal reducer

Filter: Baader Planetarium UHC-S

Mount: EQ-6 (EQMOD)+PEC

Guiding: Orion ST80+Antares 0.5x focal reducer +DSI Ic+PHD 2.6.1.8 (Win 10 ASCOM)

Camera: DSI IIc, no chiller CCD ~10 °C

Acquisition: Sequence Generator Pro 2.5.1.15 with Nebulosity 4.1.1 ASCOM camera driver (Win 10)

Exposure: 39x600 s

Stacking: Neb 4, bad pixel map, bias included, 33 flats, match histograms, trans+rot align, Neb 40-60%tile stack.

Processing: StarTools 1.4.305: Crop; Wipe; Develop: 80.53%; HDR

ptimize; Color:Scientific, 200% saturation; Deconvolute: 2.8 pix; Life:moderate; Track: Smoothness 87%, 4.5 pix; Magic, shrink 1 pix. Photoshop CS6 + Astronomy Tools: Deep space noise reduction; Increase star color; Layer masked unsharp mask; Liquify/pucker; Astroframe.

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Status	Advanced failed
Started	...
Astrometry.net job	1272338
PixInsight job	5KVKDZ3LG4VT0WOM5B57R2HEU5V5LCP2
PixInsight queue size	n/a
PixInsight stage	PLATE_SOLVING_IMAGE

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Sh2-170, Small Rosette Nebula, UHC-S, 7 Oct 2016

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