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Contains:  Star trails
IC 1795 The Fishhead Nebula, 


            Kevin Morefield

IC 1795 The Fishhead Nebula

Technical card

Imaging telescope or lens:Planewave CDK14

Imaging camera:SBIG STX 16803

Mount:Paramount ME II

Guiding telescope or lens:Planewave CDK14

Guiding camera:QHYCCD QHY174

Software:Adobe Photoship CCCCDWare CCDAutoPilot 5CCDWare CCDStack 2

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

Resolution: 3742x3289

Dates:Dec. 9, 2018

Astrodon Ha 5 nm: 45x1200" -20C bin 1x1
Astrodon OIII 3 nm: 38x1200" -20C bin 1x1
Astrodon SII 3 nm: 32x1200" -20C bin 1x1

Integration: 38.3 hours

Darks: ~20

Flats: ~20

Bias: ~20

Avg. Moon age: 2.04 days

Avg. Moon phase: 4.63%

Bortle Dark-Sky Scale: 3.00

Data source: Own remote observatory

Remote source: Sierra Remote Observatories


For this image I was particularly interested in the area top right that looks like the crown of a (blue) volcano. Just lots of drama going on there!

I've cropped it a bit but maybe one day this data will get married to a massive mosaic of the Heart Nebula. Need a few years...

115 twenty minutes subs, total time = 38.33 hours

Linear processing in CCDStack including deconvolution and sharpening. Non-Linear Processing in PS. Color is a combo of SII and OIII with 10% Ha in the green channel. Luminance is Ha.



Kevin Morefield
License: None (All rights reserved)


  • IC 1795 The Fishhead Nebula, 


            Kevin Morefield
  • Final
    IC 1795 The Fishhead Nebula, 


            Kevin Morefield




IC 1795 The Fishhead Nebula, 


            Kevin Morefield

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Narrowband imaging