Surprised it wasn't mentioned in the video, but this is where the term 'parsec' come from. A parallax angle of 1 arc second means the object is 1 parsec away (3

Surprised it wasn't mentioned in the video, but this is where the term 'parsec' come from. A parallax angle of 1 arc second means the object is 1 parsec away (3.26 light years).