â¢ Single Land Owner. The Scott AFB (St. Clair) Site is currently owned by a single land owner (St. Clair County) and is available to the NGA immediately at no cost. All other sites are owned by private entities, have associated significant costs, and some have no interest in selling their property to the NGA.
The parsec (symbol: pc) is a unit of length used to measure large distances to objects outside the Solar System. One parsec is the distance at which one astronomical unit subtends an angle of one arcsecond. A parsec is equal to about 3.26 light-years (31 trillion kilometres or 19 trillion miles) in length. The nearest star, Proxima Centauri, is about 1.3 parsecs (4.2 light-years) from the Sun. Most of the stars visible to the unaided eye in the nighttime sky are within 500 parsecs of the Sun.
Convert parsec (pc) versus light years (ly) in swapped opposite direction from light years to parsecs Or use utilized converter page with the length or distance multi-units converter conversion result for two length or distance units: From unit SymbolEquals ResultTo unit Symbol 1 parsec pc = 3.26 light years ly.o link to this length or distance-parsec to light years units converter, only cut and paste the following code into your html. The link will appear on your page as: on the web units converter from parsec (pc) to light years (ly).