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Technical card

Resolution: 2560x1939

Dates: Aug. 23, 2017

Astrodon Ha 5nm: 32x1200" bin 1x1
Chroma OIII 3nm: 24x1200" bin 1x1
Chroma SII 3nm: 24x1200" bin 1x1

Integration: 26.7 hours

Avg. Moon age: 1.31 days

Avg. Moon phase: 1.94% job: 1701970

RA center: 313.886 degrees

DEC center: 43.988 degrees

Pixel scale: 5.199 arcsec/pixel

Orientation: 355.243 degrees

Field radius: 2.319 degrees


In June, I managed to get just over 11 hours data for an SHO Pelican Nebula. SGP's Framing & Mosaic wizard makes it relatively straightforward to plan mosaics built upon an existing image. This, therefore, is a two-panel mosaic of the North America and Pelican nebulae in SHO captured using my dual WO Star 71 Rig.

The Pelican data was captured in June, the North America in August.


WO Star 71 x 2
Moravian G2-8300 x2
Mix of Astrodon and Chroma filters
Ha - 32 x 12000s = 10 hours 40 mins
OIII - 24 x 1200s = 8 hours
SII - 24 x 1200s = 8 hours
That's 26 hours 40 mins total

I built the mosaic using a trial version of AstroPixel Processor. (I also did it in PixInsight, but APP seemed to give me more usable area on the combined panels.)



Steve Milne

Sky plot

Sky plot


North America and Pelican Mosaic in Hubble Palette, Steve Milne