NGC 1514 - Crystal Ball Nebula
From the author of Sizing Up The Universe
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-PS-Ha-HaOIII-OIII-low-light-curves-denoise-FlatBkg.jpg)
20:20 EST Nov 08, 2009.
Starlight Express SXV-H9 on 10" RCOS at f/9.
L(Hα) = 92 min, O-III = 108 min
(guided 4-minute subexposures).