Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000eaa..booke4573.&link_type=abstract
"Encyclopedia of Astronomy and Astrophysics, Edited by Paul Murdin, article 4573. Bristol: Institute of Physics Publishing, 2001
Astronomy and Astrophysics
Astrophysics
Theoretical Concepts And Tools, Theoretical Concepts
Scientific paper
A unit of distance commonly used by astronomers. It is the distance at
which a star would have an annual parallax of exactly one second of arc;
from this distance, the Earth's orbit would have an apparent radius of
one second of arc. One parsec is equivalent to 3.26 light-years
(3.09×1013 km) or 206 265 astronomical units....
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