PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • I was able to catch a steady flicker from a 10th magnitude star very near Mars while on the hunt for the Martian moons of Deimos and Phobos earlier this month, but keep in mind that that is a point source, while a deep sky object such as a galaxy has that faint magnitude scattered over its apparent surface area! ???Thanks goes out to Ed Kotapish for pointing out the Mars passages by the galaxies i
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  • astroguyz.com