M57 "Ring Nebula"
Planetary Nebula in Lyra
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Exposure Data: An LRGB result of 240:50:60:50 minutes @ f/11 with a SBIG ST-10XE and Astrodon RGB filters
Telescope: Celestron C11 on a Losmandy G11 mount
Guiding: Autoguided by an SBIG ST-4 off-axis with a Lumicon GEG
Location and Date: Saugus, MA on 8-17/19/23-2006
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