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m13.jpg
M13: Globular cluster. http://www.seds.org/messier/m/m013.html has more details on this object. Briefly: it contains c. 500,000 stars, and is around 25,000 ly distant. 20 second image, no processing done. (#19/25, )
m57_1.jpg
m45_seven_sisters.jpg
m42_halpha_max_min_stretch_frame46.sized.jpg
month index
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m42_orion_nebula_levels.jpg
Moon_halpha1.highlight.jpg
m27.jpg