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HDW 2 or Sh2-200 or Bearclaw nebula

Technical card

Imaging telescopes or lenses: Takahashi Epsilon 130D  ·  LACERTA Newton ohne Namen 10"

Imaging cameras: Atik 490EXm  ·  Atik 460EX Mono

Mounts: EQ8

Software: Photoshop CS6  ·  Pleiades Astrophoto S.L. PixInsight V1.8  ·  Maxim DL Pro 6

Filters: Astrodon Ha 5nm  ·  Astrodon RGB E-Series  ·  OIII 3nm

Accessory: Starlight Xpress Lodestar X2

Dates:Nov. 22, 2017Nov. 23, 2017Nov. 25, 2017Jan. 7, 2018Jan. 8, 2018

Astrodon Ha 5nm: 33x900" bin 1x1
OIII 3nm: 22x900" bin 1x1
Astrodon RGB E-Series: 30x240" bin 1x1
Astrodon RGB E-Series: 26x300" bin 1x1

Integration: 17.9 hours

Avg. Moon age: 11.36 days

Avg. Moon phase: 38.58%

Basic astrometry details job: 1885298

RA center: 3h 11' 13"

DEC center: +62° 46' 37"

Pixel scale: 1.339 arcsec/pixel

Orientation: 2.065 degrees

Field radius: 0.457 degrees

Resolution: 1920x1536

Locations: Upper Borg Observatory, Bremen, Bremen, Germany


For more information:
Collaboration project with Frank Iwaskiewicz
Image aquisition took from october 2017 until early january 2018.

Frank with his 10", f4 Newton added:
Ha: 18 x 1200"
OIII: 29 x 1200"
RGB: 24 x 300"
17,5 hrs.



Jens Zippel


Sky plot

Sky plot


HDW 2 or Sh2-200 or Bearclaw nebula, 


            Jens Zippel