what is the biggest measurement
Answers
Answer:
One gigaparsec (Gpc) is one billion parsecs — one of the largest units of length commonly used.
Unit system: astronomical units
Unit of: length/distance
Metric (SI) units: 3.0857×1016 m; ~31 petametres
Astronomical units: 2.06265×105 au; 3.26156 ly
Answer:
The parsec (symbol: pc) is a unit of length used to measure the large distances to astronomical objects outside the Solar System, approximately equal to 3.26 light-years or 206,000 astronomical units, i. e. 30.9 trillion kilometres (19.2 trillion miles).[a] Parsec is obtained by the use of parallax and trigonometry, and is defined as the distance at which one astronomical unit subtends an angle of one arcsecond[1] (
1
/
3600
of a degree). This corresponds to
648000
/
π
astronomical units, i.e. 1 pc = 1/tan(1″) au.[2] The nearest star, Proxima Centauri, is about 1.3 parsecs (4.2 light-years) from the Sun.[3] Most of the stars visible to the unaided eye in the night sky are within 500 parsecs of the Sun