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 sky are within 500 parsecs of the Sun. The parsec unit was probably first suggested in
Live-Evil (Miles Davis album) 1970 at Columbia Studio B, New York, NY)" 3. "Medley: Gemini/Double Image" (5:53)<br>"(Recorded February 6, 1970 at Columbia Studio B, New York, NY)" Side Two (25:12)<br> 1. "What I Say" (21:09)<br>"(Recorded December 19, 1970 at The Cellar Door, Washington, DC)" 2. "Nem Um Talvez" (4:03)<br>"(Recorded June 3, 1970 at Columbia Studio B, New York, NY)" Side Three (25:38)<br> 1. "Selim" (2:12)<br>"(Recorded June 3, 1970 at Columbia Studio B, New York, NY)" 2. "Funky Tonk" (23:26)<br>"(Recorded December 19, 1970 at The Cellar Door, Washington, DC)" Side Four (26:29)<br> 1. "Inamorata and Narration by Conrad Roberts" (26:29)<br>"(Recorded December 19, 1970 at The