"Angular Size", by Randall Munroe, licensed under Creative Commons Attribution-NonCommercial 2.5 License
Alt Text
If the celestial sphere were mapped to the Earth's surface, astronomy would get a LOT easier; you'd just need a magnifying glass.
"Angular Size", by Randall Munroe, licensed under Creative Commons Attribution-NonCommercial 2.5 License
If the celestial sphere were mapped to the Earth's surface, astronomy would get a LOT easier; you'd just need a magnifying glass.