Answer to Question #280905 in Astronomy | Astrophysics for Cat.G

Question #280905

A certain star has a parallax of 0.4 arcseconds. How far away is it (in metres)? [Type in the numerical value and units e.g. 1.23E+16m]

Expert's answer

"r=\\frac 1{\\pi''}=2.5~pc=7.71\\text E" +16 m.

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