Search Results for: Astronomical instruments
unit [au] ( km ; mi ). for comparison, the radius of the sun is au ( km). thus, the sun occupies % ( − %) of the volume of a sphere with a radius the size of earth's orbit, whereas earth's volume is roughly one millionth ( − ) that of the sun. jupiter, the largest planet, is astronomical units ( km)
authoritative body regarding astronomical nomenclature, specifies capitalizing the names of all individual astronomical objects, but uses mixed "solar system" and "solar system" in their naming guidelines document . the name is commonly rendered in lower case ("solar system"), as, for example, in the...
https://en.wikipedia.org/wiki/Solar_system