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SH2-155, Cave Nebula or Caldwell 9 HaSO+RGB, 


            Jens Zippel
SH2-155, Cave Nebula or Caldwell 9 HaSO+RGB

SH2-155, Cave Nebula or Caldwell 9 HaSO+RGB

Technical card

Imaging telescope or lens:APM Telescopes APM 107/700

Imaging camera:Atik 460EX Mono


Guiding telescope or lens:8x50 Sucher

Focal reducer:Riccardi 2,5" x0,75 Reducer

Software:Pleiades Astrophoto S.L. PixInsight V1.8Photoshop CS6Maxim DL Pro 6

Filter:Ha 5nm

Accessory:MGEN2 mit 9x50 Sucher

Resolution: 1920x1546

Dates:Sept. 8, 2015Sept. 25, 2015Sept. 30, 2015Oct. 1, 2015Oct. 2, 2015

Ha 5nm: 10x1800"
OIII 3nm: 8x1800"
Astrodon RGB E-Series: 30x360"
SII 3nm: 10x1800"

Integration: 17.0 hours

Avg. Moon age: 18.56 days

Avg. Moon phase: 72.04% job: 802480

RA center: 344.009 degrees

DEC center: 62.524 degrees

Pixel scale: 2.411 arcsec/pixel

Orientation: -127.255 degrees

Field radius: 0.825 degrees

Locations: Upper Borg Observatory, Bremen, Bremen, Germany


50% combination of HaSO (Hubble colors) and RGB image



Jens Zippel
License: Attribution-NonCommercial-ShareAlike Creative Commons

Sky plot

Sky plot


SH2-155, Cave Nebula or Caldwell 9 HaSO+RGB, 


            Jens Zippel