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Contains:  NGC 1027, IC 1805, IC 1795, NGC 896
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Heart nebula IC1805/NGC896/SH2-190 (c-hos), 





    
        

            Ram Samudrala
Heart nebula IC1805/NGC896/SH2-190 (c-hos)

Technical card

Resolution: 4259x3256

Dates:July 21, 2017July 26, 2017July 28, 2017

Frames:
Astrodon Ha 1.25 5nm: 15x120" (gain: 40.00) -15C bin 1x1
Astrodon Ha 1.25 5nm: 90x60" (gain: 40.00) -15C bin 1x1
Astrodon OIII 1.25 3nm: 10x120" (gain: 40.00) -15C bin 1x1
Astrodon OIII 1.25 3nm: 60x60" (gain: 40.00) -15C bin 1x1
Astrodon SII 31mm 3nm: 10x120" (gain: 40.00) -15C bin 1x1
Astrodon SII 31mm 3nm: 60x60" (gain: 40.00) -15C bin 1x1

Integration: 4.7 hours

Darks: ~10

Avg. Moon age: 12.03 days

Avg. Moon phase: 15.68%

Bortle Dark-Sky Scale: 3.00

Mean FWHM: 3.72

Temperature: 20.00

Astrometry.net job: 1671383

RA center: 38.077 degrees

DEC center: 61.397 degrees

Pixel scale: 2.318 arcsec/pixel

Orientation: 5.537 degrees

Field radius: 1.726 degrees

Description

The image of the Heart Nebula (IC1805/NGC896/SH2-190) is displayed using the HOS palette, where Ha is assigned red, O3 green, and S2 blue, with two sets of livestacked exposures being used for each filter: 90 x 1 minute + 15 x 2 minute for Ha (120 minutes total), 60 x 1 minute + 10 x 2 minute for O3 and S2 (80 minutes total x 2). The six livestacked exposures were again restacked to produce the final image (280 minutes or ~4.7 hours total integration).

Comments

Author

ramdom
Ram Samudrala
License: Attribution Creative Commons
1431
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Heart nebula IC1805/NGC896/SH2-190 (c-hos), 





    
        

            Ram Samudrala