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You measure the parallax angle for a star to be 0.1 arcseconds. The distance to this star is?

Answer 1

Christopher Ales

10 Parsecs

An object's parallax angle, denoted by, is inversely proportional to its distance to it in space, expressed in parsecs.

d is equal to 1/p.

wherein

In parsecs, d, and arcsecs, p

thus,

D is equal to 1/0.1.

d = 10 Pieces or 10 Seconds.

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Answer 2

Clara Avalos

Using the formula Distance (in parsecs) = 1 / (Parallax angle (in arcseconds)) will allow you to find the distance to the star. For example, if the parallax angle is 0.1 arcseconds, then Distance = 1 / 0.1 = 10 parsecs.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.