Friday, January 27, 2012

What is the parallax of a star in light years?

If the parallax of a star is 0.09 seconds of arc, what is the distance to this star in parsecs, light years and astronomical unitsWhat is the parallax of a star in light years?Distance(pc)= 1/arc seconds

distance- 1/.09

Distance= 11.111 parsecs = 36.24 light years = 1,291,808.26 AUWhat is the parallax of a star in light years?0.09 arc seconds ==%26gt; 1/ 0.09 = 11.1 parsecs.



Each parsec is 3.26 light years

Each parsec is 206,000 AU
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