![]() ![]() ![]() In light years, parsec is nearly equal to \ light years and astronomical units are approximately equal to $8$ light minutes. au to pc conversion table: 1 au 4.848E-6 pc, 21 au 1.018E-4 pc, 41 au 1.988E-4 pc, 70 au 3.394E-4 pc 2 au 9.696E-6 pc, 22 au 1. the 'parsec,' the distance of an object having a parallax of 1' or, to phrase it another way, the distance at which one AU would subtend an angle of l'. The astronomical unit is mainly used to assess distances within the Solar System or between stars whereas parsec is used to quantify distances beyond the solar system. Note: The word Parsec is derived from the words ‘parallax’ and ‘arc second’. Note: The word Parsec is derived from the words parallax and arc second. 1 au (Astronomical units) is equivalent to 4.8481368113803E-06 pc (Parsecs) Excel formula to convert au to pc Conversion Table from Astronomical units to. parsec parallax of one second, and the distance of an object in parsecs is the reciprocal of its parallax in seconds of arc. Parsec is defined as the distance at which the radius of orbit of Earth subtends a parallax angle of one arc second and one arc second is $\dfrac$ astronomical units. Hence, one parsec corresponds to 648,000 astronomical units.
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