Parsec but in globular clusters the stellar density could be from 100 to 1000 per cubic parsec. Parsec The parsec (symbol: pc) is a unit of length used to measure large distances to astronomical objects outside the Solar System. A parsec is defined as the distance at which one astronomical unit subtends an angle of one arcsecond, which corresponds to astronomical units. One parsec is equal to about 3.26 light-years (30 trillion km or 19 trillion miles) in length. The nearest star, Proxima Centauri, is about from the Sun. Most of the stars visible to the unaided eye in the night
Cape San Blas Light enclosing a stair cylinder, with the lantern above ground and above water. The 800,000 candela 3-foot 2-order electric light flashes white every 20 seconds and is visible 16 miles (26 km or 30 km). A radiobeacon was established at the station in 1939. As of June 2012, the light has been added to the lighthouse Doomsday List. In July 2014, the lighthouse and two keepers' quarters were moved from Cape San Blas to George Core Park in Port St. Joe. Cape San Blas Light The Cape San Blas Light is a lighthouse in the state of Florida in the United