A star exhibits a parallax of 0.250 arcseconds when measured from Earth.(adsbygoogle = window.adsbygoogle || []).push({});

a) What is its distance (pc)?

I know this uses the formula d=1/p, so i can solve this very easily

b) What would its parallax be if measured from Venusâ€™s orbit (arcseconds)? (Look up

the one parameter you need to solve this using the relevant equation.)

I don't know what to do here at all though, I can't look up it's distance from Venus because its an arbitrary star...so what do i do? Can someone guide me to the right direction??

Thanks

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# Parallax and distance

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