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Contains:  IC 1805
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IC1805 - The Heart Nebula

Technical card

Resolution: 3247x2378

Dates:July 25, 2018July 27, 2018July 28, 2018July 29, 2018Aug. 2, 2018Aug. 3, 2018Aug. 4, 2018Aug. 11, 2018Aug. 23, 2018Aug. 24, 2018Aug. 31, 2018Sept. 23, 2018Oct. 23, 2018Oct. 24, 2018Oct. 25, 2018Oct. 29, 2018Oct. 30, 2018Nov. 30, 2018Dec. 4, 2018Dec. 30, 2018Jan. 3, 2019Jan. 4, 2019Jan. 5, 2019Jan. 13, 2019Jan. 20, 2019

Astronomik H-alpha 6nm CCD 1.25": 254x240" (gain: 139.00) -20C bin 1x1
Astronomik OIII 6nm CCD 1.25": 254x240" (gain: 139.00) -20C bin 1x1
Astronomik SII 6nm CCD 1.25": 256x240" (gain: 139.00) -20C bin 1x1

Integration: 50.9 hours

Darks: ~50

Flats: ~50

Bias: ~256

Avg. Moon age: 17.65 days

Avg. Moon phase: 64.80%

Bortle Dark-Sky Scale: 5.00 job: 2736173

RA center: 38.873 degrees

DEC center: 61.392 degrees

Pixel scale: 0.999 arcsec/pixel

Orientation: 0.194 degrees

Field radius: 0.559 degrees

Data source: Backyard


One of the most photographed nebulae has to be the Heart Nebula complex. It's not hard to see why. The intricate display of intertwined gas clouds never fails to disappoint. This view is looking deep within the central area. At this scale, all the dark pillars and globules that obscure the view become as noteworthy as the emission nebula itself. On the right, the towering bright column surrounded by the star cluster Melotte 15 makes for an imposing point-of-interest.

This image took me almost a year to collect, assemble, and "finish", though, I promise I didn't work on it the whole time. In fact it was sitting on the back burner for so long that I think I forgot about it for a while. This is a two panel mosaic, in a non-standard SHO-based mix.



Jason Guenzel

Sky plot

Sky plot


IC1805 - The Heart Nebula, 


            Jason Guenzel