Hemisphere:  Northern  ·  Constellation: Lyra (Lyr)  ·  Contains:  IC 1296  ·  M 57  ·  NGC 6720  ·  Ring nebula in Lyra
Getting plate-solving status, please wait...
M57 • Ring Nebula in HaOIIILRGB, 



    
        

            Douglas J Struble
M57 • Ring Nebula in HaOIIILRGB
Powered byPixInsight

M57 • Ring Nebula in HaOIIILRGB

Getting plate-solving status, please wait...
M57 • Ring Nebula in HaOIIILRGB, 



    
        

            Douglas J Struble
M57 • Ring Nebula in HaOIIILRGB
Powered byPixInsight

M57 • Ring Nebula in HaOIIILRGB

Equipment

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 OIII 3nm · Astrodon Lum Tru-Balance E-Series Gen 2 · Astrodon Green Tru-Balance E-Series Gen 2 · Astrodon Blue Tru-Balance E-Series Gen 2 · Astrodon Red 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
PHD2 · Sequence Generator Pro · PixInsight · Stellarium · Photoshop CS5 · SkySafari Pro
Guiding Telescopes Or Lenses
Orion 80mm Short Tube
Guiding Cameras
Starlight Xpress Lodestar x2

Acquisition details

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: 30x60" (30') (gain: 0.00) -20°C bin 1x1
Astrodon Green Tru-Balance E-Series Gen 2: 30x60" (30') (gain: 0.00) -20°C bin 1x1
Astrodon Ha 5nm: 28x120" (56') (gain: 139.00) -20°C bin 1x1
Astrodon Ha 5nm: 154x120" (5h 8') (gain: 200.00) -20°C bin 1x1
Astrodon Lum Tru-Balance E-Series Gen 2: 173x60" (2h 53') (gain: 0.00) -20°C bin 1x1
Astrodon OIII 3nm: 40x120" (1h 20') (gain: 139.00) -20°C bin 1x1
Astrodon OIII 3nm: 131x120" (4h 22') (gain: 200.00) -20°C bin 1x1
Astrodon Red Tru-Balance E-Series Gen 2: 30x60" (30') (gain: 0.00) -20°C bin 1x1
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°0137

Pixel scale: 0.648 arcsec/pixel

Orientation: 129.504 degrees

Field radius: 0.287 degrees

Resolution: 2609x1842

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

Data source: Backyard

Description

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.

Comments

Sky plot

Sky plot

Histogram

M57 • Ring Nebula in HaOIIILRGB, 



    
        

            Douglas J Struble