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when toggle format what by license comment
Oct 15, 2015 at 14:34 history edited thanby CC BY-SA 3.0
Added a real-life example for clarity
Jul 17, 2015 at 14:39 history edited thanby CC BY-SA 3.0
Corrected comments about visibility from Earth
Jul 17, 2015 at 14:38 comment added thanby I stand corrected!
Jul 17, 2015 at 12:17 comment added user "[Pluto is] not even visible without excellent optics in orbit" Pluto was discovered in 1930. I'm not aware of any space-based telescopes in that era.
Jul 16, 2015 at 17:32 review First posts
Jul 16, 2015 at 17:53
Jul 16, 2015 at 17:25 history answered thanby CC BY-SA 3.0