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Contains:  Ring nebula in Lyra, M 57, NGC 6720, IC 1296
Getting plate-solving status, please wait...


            Joshua Judkins


Technical card

Imaging telescope or lens:Meade 12" LX600-ACF

Imaging camera:ZWO ASI1600MM-C

Mount:Meade Giant Field Tripod

Guiding telescope or lens:MEADE Starlock

Software:Adobe PHOTOSHOP CS6Stark Labs Nebulosity 4.0

Accessory:Meade X-Wedge

Resolution: 3085x2371

Dates:Aug. 15, 2018

ZWO Ha 7nm 1.25": 24x30" (gain: 120.00) -10C bin 1x1
ZWO Lum 1.25": 22x30" (gain: 120.00) -10C bin 1x1
ZWO OIII 7nm 1.25": 22x20" (gain: 120.00) -10C bin 1x1
ZWO SII 7nm 1.25": 26x30" (gain: 120.00) -10C bin 1x1

Integration: 0.7 hours

Darks: ~20

Flats: ~20

Bias: ~49

Avg. Moon age: 4.57 days

Avg. Moon phase: 21.87%

Bortle Dark-Sky Scale: 7.00 job: 2219002

RA center: 283.397 degrees

DEC center: 33.030 degrees

Pixel scale: 0.327 arcsec/pixel

Orientation: 83.330 degrees

Field radius: 0.177 degrees

Data source: Backyard


M57, the Ring Nebula, the corpse of a red giant star. This remnant is located ~2000 light years away in the constellation Lyra. M57 is the result of a red giant shedding its outer layers as it progresses through the final stages of its existence. The remaining white dwarf star at its center energizes the expelled gases causing the atoms to glow.



Joshua Judkins
License: None (All rights reserved)

Sky plot

Sky plot




            Joshua Judkins