Tag Archives: Caldwell
More Clusters and a Hidden Galaxy
In which I show a few star clusters, including the double cluster in Perseus, and two new galaxies. Continue reading
Posted in Space on the back porch
Tagged Albiero, astronomy, astrophotography, Caldwell, celestial brightness, eVscope, eVscope2, h Persei, Hidden Galaxy, χ Persei, khi Persei, Messier, NGC, photography, science, space, stars, technology, universe
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Learning About Brightness (and How Faint I Can Go)
In which I discuss the relationship between angular size, relative brightness, and what works for my eVscope. Continue reading
Posted in Space on the back porch
Tagged angular size for celestial objects, arc minutes, astronomy, astrophotography, Caldwell, caldwell 9, cave nebula, celestial brightness, cocoon nebula, eVscope, eVscope2, Messier, nebula, NGC, pacman nebula, photography, science, space, stars, technology, universe, wizard nebula
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