NGC 2237 - The Rosette Nebula
From the author of   Sizing Up The Universe
Click here for Hertzsprung-Russell diagram.
19:20 EST Feb 20, 2022.
ZWO ASI2400MC-Pro on 10" Ritchey-Chretien at f/9.
60 min unguided 5-minute LiveStacks of 30-second exposures taken with L-Extreme filter.
Images processed in PixInsight
21:29 EST Jan 19, 2006.
Starlight Express SXV-H9 on 4" Tak FSQ refractor at f/5.
L= Hα+OIII, R=Hα, G=B=OIII.
Hα = 160 min (guided 10-minute subexposures).
OIII = 110 min (guided 10-minute subexposures).
Click here to see an image of the same area assembled from R and B frames from the Digitized Sky Survery.
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