Hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  PK128-04.1  ·  Sh2-188
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Start of the Sharpless Season with HaLRGB sh2-188, 


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Start of the Sharpless Season with HaLRGB sh2-188

Technical card

Imaging telescopes or lenses: Skywatcher Explorer 200PDS

Imaging cameras: QHYCCD QHY9M

Mounts: Skywatcher NEQ6 PRO Synscan

Guiding telescopes or lenses: Skywatcher 9x50 finderscope

Guiding cameras: QHYCCD QHY5-III 178 C

Focal reducers: Baader MPCC Mk III

Software: Photoshop  ·  Pixinsight

Filters: Baader L 2''  ·  Baader Blue 2"  ·  Baader Green 2"  ·  Baader Red 2"  ·  ZWO Ha 7nm

Accessory: QHYCCD QHY 2" Filter wheel  ·  Seletek Armadillo

Dates:Aug. 27, 2020

ZWO Ha 7nm: 14x300" -30C bin 1x1
Baader L 2'': 13x300" -30C bin 1x1
Baader RGB 2": 39x300" -30C bin 1x1

Integration: 5.5 hours

Flats: ~20

Bias: ~100

Avg. Moon age: 9.20 days

Avg. Moon phase: 68.84%

Astrometry.net job: 3807562

RA center: 1h 32' 14"

DEC center: +58° 21' 23"

Pixel scale: 1.105 arcsec/pixel

Orientation: -56.126 degrees

Field radius: 0.625 degrees

Resolution: 3255x2441

Locations: Puolivälinkangas - Oulu, Oulu, Finland

Data source: Backyard


It's the start of the season and my first HaLRGB image! Excited to get to try more of the Sharpless objects.


Sky plot

Sky plot


Start of the Sharpless Season with HaLRGB sh2-188,