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Contains:  Bubble nebula, NGC 7635
Getting plate-solving status, please wait...
"Bubble Nebula" in HOO with DSLR, 


            Michael S.
"Bubble Nebula" in HOO with DSLR
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"Bubble Nebula" in HOO with DSLR

Technical card

Resolution: 2500x1667

Dates:Oct. 8, 2019

Frames:Optolong L-eNhance 2": 24x600"

Integration: 4.0 hours

Darks: ~36

Flats: ~30

Flat darks: 0

Bias: ~70

Avg. Moon age: 9.94 days

Avg. Moon phase: 75.87%

Bortle Dark-Sky Scale: 4.00

Mean SQM: 19.70

Temperature: 12.00

Basic astrometry details job: 2980375

RA center: 23h 20' 44"

DEC center: +61° 9' 0"

Pixel scale: 1.541 arcsec/pixel

Orientation: 0.492 degrees

Field radius: 0.643 degrees

Locations: My lovely garden, J-City, Burgenland, Austria

Data source: Backyard


Although 78% Moon I collected photons of that fine nebula using the dualband filter.
After using the filter with a full frame DSLR, APS-sized DSLR, without Moon and in Moon phases with 30-80%, I can clearly say - it's nonsense to shoot under anything more than 25% moonlight, even with such a filter. You can achieve great results with such a filter in a moonless night, getting more details out of those nebulae but getting anything more than just getting some Halpha data for example those knots in a galaxy does not make sense under moonlight, waste of time.

Here you can see the raw-data (converted to .jpg) of the Ha and OIII channels:



Michael S.
License: None (All rights reserved)


  • "Bubble Nebula" in HOO with DSLR, 


            Michael S.
  • Final
    "Bubble Nebula" in HOO with DSLR, 


            Michael S.


Description: Astro Pixel Processor version added, mixed with a little help by Pixinsight. ;-)

Sky plot

Sky plot


"Bubble Nebula" in HOO with DSLR, 


            Michael S.