M57 • Ring Nebula in HaOIIILRGB ( Douglas J Struble )

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M57 • Ring Nebula in HaOIIILRGB

Imaging Telescopes Or Lenses: Explore Scientific 152 mm Carbon Fiber
Imaging Cameras: ZWO ASI1600MM Pro
Mounts: Astro-Physics Mach 1 GTO
Filters: Astrodon Ha 5nm · Astrodon Red Tru-Balance E-Series Gen 2 · Astrodon Blue Tru-Balance E-Series Gen 2 · Astrodon OIII 3nm · Astrodon Lum Tru-Balance E-Series Gen 2 · Astrodon Green Tru-Balance E-Series Gen 2
Accessories: ZWO 8x 1.25" Filter Wheel (EFW) · QHYCCD PoleMaster · Hotech 2" SCA Self-Centering Field Flattener · MoonLite CFL 2.5" Large Format Focuser
Software: Adobe Photoshop · Pleiades Astrophoto PixInsight · Simulation Curriculum SkySafari · PHD2 · Stellarium · Sequence Generator Pro
Guiding Telescopes Or Lenses: Orion 80mm Short Tube
Guiding Cameras: Starlight Xpress Lodestar X2

Dates:: Aug. 2, 2017 · Aug. 5, 2017 · May 19, 2019 · May 24, 2019 · June 21, 2019 · June 23, 2019
Frames:: Astrodon Blue Tru-Balance E-Series Gen 2: 30×60″(30′) (gain: 0.00) -20°C bin 1×1
Astrodon Green Tru-Balance E-Series Gen 2: 30×60″(30′) (gain: 0.00) -20°C bin 1×1
Astrodon Ha 5nm: 28×120″(56′) (gain: 139.00) -20°C bin 1×1
Astrodon Ha 5nm: 154×120″(5h 8′) (gain: 200.00) -20°C bin 1×1
Astrodon Lum Tru-Balance E-Series Gen 2: 173×60″(2h 53′) (gain: 0.00) -20°C bin 1×1
Astrodon OIII 3nm: 40×120″(1h 20′) (gain: 139.00) -20°C bin 1×1
Astrodon OIII 3nm: 131×120″(4h 22′) (gain: 200.00) -20°C bin 1×1
Astrodon Red Tru-Balance E-Series Gen 2: 30×60″(30′) (gain: 0.00) -20°C bin 1×1
Integration:: 16h 9′
Darks:: 50
Flats:: 50
Bias:: 250
Avg. Moon age:: 16.22 days
Avg. Moon phase:: 82.07%
Bortle Dark-Sky Scale:: 6.00

Basic astrometry details

Astrometry.net job: 3251691

RA center: 18h53m35s.5

DEC center: +33°01′37″

Pixel scale: 0.648 arcsec/pixel

Orientation: 129.504 degrees

Field radius: 0.287 degrees

Resolution: 2609x1842

File size: 5.6 MB

Locations: Backyard White Zone Observatory, Taylor, MI, Michigan, United States

Data source: Backyard

The Ring Nebula, M57, discovered by the French astronomer Charles Messier while searching for comets in late January 1779, is a planetary nebula in the northern constellation of Lyra. Such objects are formed when a shell of ionized gas is expelled into the surrounding interstellar medium by a red giant star, which was passing through the last stage in its evolution before becoming a white dwarf. M57 is 2,300 light-years from Earth. Photographs taken over a period of 50 years show the rate of nebula expansion is roughly 1 arcsecond per century. The interior parts of this nebula have a blue-green tinge that is caused by doubly ionized oxygen.

	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
Unknown

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Status	Basic success
Started	...
Astrometry.net job	3251691
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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M57 • Ring Nebula in HaOIIILRGB

M57 • Ring Nebula in HaOIIILRGB

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M57 • Ring Nebula in HaOIIILRGB

M57 • Ring Nebula in HaOIIILRGB

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