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The parallax of Sirius is 0.375′′ and radial velocity −8 km/s. – What are the tangential...

The parallax of Sirius is 0.375′′ and radial velocity −8 km/s.
– What are the tangential and total velocities of Sirius?
– When will Sirius be closest to the Sun?

Science   Advanced-Physics   
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In this question we calculated the tangential and total velocity of Sirius by converting the given quantities in their corresponding units and then using formulae on those.

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