Distant star

There are billions of billions stars present in our whole universe this is our curiosity to know more about them.In this blog  we will try to learn the measurements of the distance  of the stars -

To understand the  working of parallax method in our daily wor life let do an simple experiment-

💢take out your finger in front of you and then close your 1th eye and look on it ,now similarly close your second eye and look from first eye ,you realise the certain change in the position of the your finger but in actually the position of you and your finger in the state of rest form the beginning of the experiment,but the situation we realise in the experiment what was that ?That was the parallax shift occurs due the change of our vision angle while we saw the finger from different eyes.Because there is certain amount of  distance between our both eyes hence the vision angle formed by both eyes are variable since we realise the  visual not actual change in the position of the finger.

Generally the parallax shift depends upon the distance of the object which is observing by the observer.more the distance lesser the parallax shift.for example when we  see the sun which is very far away  for us since the lesser the parallax shift which means that the difference of the both visual angle of our eyes become negligible for observes for that we can not relies the apparent change in the position of the sun as we saw in the our finger experiment.

In Simple way we can say that the it is the game of visual angle formed by object in our eyes.

This the *parallax phenomenon*.which is used in the process of finding the distance of those objects which are very far away from our earth such as:stars.

Now we understand the working of the measurement of the distance of the stars of that principle of parallax method.

We all know that the  distance of the sun is almost 149597870700 metres or about 150 million kilometres (93 million miles) this is astronomical unit .⇔⇔

๏ first we note the visual angel forming by that star.
๏ Second  we again note the visual angel of that star again after 6 month of our 1 observations.
⇔For this we get the angle of stare from different position of the earth ( by the addition of the both visual angles.)

♈Now we consider a hypothetical circle.In which the center of that circle is that star..
Finally we just apply the our basic maths formula of ::

In which the # ::

1. Arc is of :~2AU
2. Agle :~ Angle of stare from different position of the earth ( by the addition of the both visual angle )

Finally the  radius of that hypothetical circle which is constructed by us tell  the  distance of that  particular star which we have  to be find..

Hope you have learnt something interesting and new from this article in easiest way.

If so then do comment,and share it 📲📲 with your friends🤼 and👨‍👨‍👦‍👦 family members.

Thanks!
@Jeewan

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