Hemisphere:  Northern
Sh2-188 (Planetary nebula) Version II, 



    
        

            Epicycle
Sh2-188 (Planetary nebula) Version II
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Sh2-188 (Planetary nebula) Version II

Technical card

Imaging telescopes or lenses: SkyWatcher 130/650 PDS Newton

Imaging cameras: Atik 460EX Mono

Mounts: Sky-Watcher HEQ5 PRO

Guiding telescopes or lenses: SkyWatcher 130/650 PDS Newton

Guiding cameras: Lodestar

Software: PixInsight 1.8  ·  Affinity Photo  ·  Main Sequence Software SequenceGeneratorPro  ·  PHD2  ·  EQMod

Filters: Astrodon 3nm OIII  ·  Astrodon 5nm SII  ·  Astrodon Ha 5nm

Accessory: Baader MPCC MarkIII  ·  Lakeside Astro Motor Focus System  ·  Starlight Xpress Mini Filter wheel


Dates:Oct. 1, 2016Oct. 3, 2016Nov. 17, 2017

Frames:
Astrodon 3nm OIII: 14x1200" -15C bin 1x1
Astrodon 5nm SII: 7x1200" -15C bin 1x1
Astrodon Ha 5nm: 59x1200" -15C bin 1x1

Integration: 26.7 hours

Avg. Moon age: 10.45 days

Avg. Moon phase: 2.28%


Basic astrometry details

Astrometry.net job: 1827105

RA center: 1h 30' 20"

DEC center: +58° 28' 15"

Pixel scale: 0.717 arcsec/pixel

Orientation: 183.807 degrees

Field radius: 0.480 degrees


Resolution: 3605x3199

Data source: Backyard

Description

I tried this target last year and I wasn't quite happy with the result. This year I've added nearly 15hs
of Ha and hence I was able to drizzle and get a much cleaner version; in particular the faint outer halo is more prominent now. The oiii and sii were taken about a year ago with the same equipment.
For some reason this nebula reminds me of the alien helmet from Prometheus... No dolphin for me.

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Epicycle
Epicycle
License: None (All rights reserved)
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Sh2-188 (Planetary nebula) Version II, 



    
        

            Epicycle

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UK Astro-Imaging
Narrowband imaging