The Ring Nebula

M57 - Planetary Nebula in Lyra

Image Processing by Bob Fera
Data acquisition by Eric Coles

PlaneWave CDK-20 20" f/7.7 Corrected Dall-Kirkham Cassegrain

PlaneWave L-500 Mount

QHY600M Camera

Chroma Filters

LRGB+HaOiii Composite - L:230 R:120 G:120 B:165 minutes Ha:1,140 minutes Oiii:660 minutes
H-alpha and Oiii added from older data taken by Eric with a 16" RC

Sub Exposures: L:46x5min R:24x5min G:24x5min B:33x5min Binned 2x2 Ha:38x30min Oiii:22x30min

Image acquired with Voyager

Processed in Pixinsight, CCDstack and Adobe Photoshop

Taken May 28 - June 5, 2022 from Sierra Remote Observatories, CA



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