Hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  IC 1795  ·  NGC 896
NGC 896 - Fish Head - SHO, 


            Kristof Dierick
NGC 896 - Fish Head - SHO
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Technical card

Imaging telescopes or lenses: TS Optics TS 130/910 Photoline

Guiding telescopes or lenses: ZWO 60/280 Guiderscope

Guiding cameras: ZWO ASI120MC

Focal reducers: TS PHOTOLINE 0,79x 3" reducer/flattener TSRED379

Software: N.I.N.A  ·  PixInsight 1.8.8-6 Ripley PixInsight  ·  Astro Pixel Processor APP  ·  PHD2 2.6.9

Dates:Nov. 24, 2020

Astronomik SII 6nm: 25x300" (gain: 200.00) -20C bin 1x1
Astronomik Ha 31mm 6nm: 34x300" (gain: 200.00) -20C bin 1x1
Astronomik OIII 31mm 6nm: 22x300" (gain: 200.00) -20C bin 1x1

Integration: 6.8 hours

Darks: ~30

Flats: ~30

Bias: ~100

Avg. Moon age: 9.48 days

Avg. Moon phase: 71.61%

Bortle Dark-Sky Scale: 5.00

Basic astrometry details

Astrometry.net job: 4058740

RA center: 2h 27' 27"

DEC center: +62° 1' 30"

Pixel scale: 1.065 arcsec/pixel

Orientation: 145.786 degrees

Field radius: 0.801 degrees

Resolution: 4462x3073

Locations: Backyard - Aan de kerk, Mielen-boven-Aalst, Limburg, Belgium

Data source: Backyard


I was imaging this part of the Heart Nebula, the Fish Head, because it fitted nicely in my field of view of my setup without having to take a mosaic. I spent two nights in November and took about 113 frames of which eventually 81 made it to the integration. This was mainly due to high clouds rolling in each time during the sessions. Stacking done in Astro Pixel Processor and processing in PixInsight.


Sky plot

Sky plot


NGC 896 - Fish Head - SHO, 


            Kristof Dierick