How to discover planets?

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Two techniques that have enabled us to discover planets around other stars:

1.The first is to look at the star and see if the amount of light coming from it is constant.If a planet moves in front of the star,the light from the star will be slightly obscured(to make hard to understand).The star will dim a little bit.If this happens regularly,it is because a planet's orbit is taking it in front of the star repeatedly.

A second method is to measure the position of the star accurately.If a planet is orbiting the star,it will induce a small wobble(to move side to side) in the position of the star.This can be observed again,if it is a regular wobble,then one deduces that it is due to a planet in orbit around the star.

(N.B.These methods were first applied about twenty years ago and by now a few thousand planets have been discovered orbiting distant stars)

Comments

  1. Steve Lalneo Haokip KukiAugust 13, 2019 at 6:38 PM

    Very helpful article. Congratulations Sir, You made it!!

    This blog will open a door for a new Discovery of the Unnamed Planet (s) in future.

    Love to read it! Published more and more.

    ReplyDelete
  2. Steve Lalneo Haokip KukiAugust 13, 2019 at 6:44 PM

    Very helpful article. This blog will open a door for a new Discovery of the Unnamed Planet (s).

    ReplyDelete

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