You Must Know How Astronomers Find Planet Alien

The discovery of a planet inhabited by aliens or aliens always be interesting conversation. However, what actually astronomers could find the existence of these planets?

Astronomers have five main tactics to find planets located outside the solar system. One technique that has proven successful to find these planets, and Kepler is often used aircraft equipment amateur sky observations.

The planet orbiting the star, located in the outer solar system where the sun and Earth. The planets appear with a variety of 'flavors'. Including, the gas giant in size 60 times more massive than Jupiter.

This gas giant moves in orbit around the star with 'crazy'. In addition to the gas giants, there are 'super-Earth' whose size is much more massive than the planet where human settlements.

According to senior author Remy Melina Space, while the world is too distant to be seen directly, astronomers can figure out the effect of the existence of these planets in their solar, other agencies, or even light waves.

Radial velocity method which is also known as the Doppler method, analyzing the velocity of the star moving toward or away from Earth as the planet's gravitational pull that tugged back and forth.

Astrometry has a way of working methods are similar. The difference, astronomers must measure the distance of the star to wobble a long time to replace measuring the speed of the star.

Another technique called microlensing method. These techniques look for distortions in the light generated from the gravitational pull. Planet's gravitational field can have a measurable impact on the light path.

Similarly, measures of time as to whether the technique pulsar is usually a constant stream of stars disrupted radio waves emanating from planets orbiting at that place.


The transit technique takes advantage of a little 'dip' of starlight that occurs when a planet passes in front of its star. By measuring the decrease in brightness, astronomers were able to gather valuable information about a planet transit, including the mass and size.

In 2006, astronomers used this technique to find the Exoplanet TrES-2 using three telescopes 4-inch (10 centimeters) of astronomers built from a combination of parts that already exist and artificial lens.

So far, most of the transit technique to find exoplanets. On 22 November 2010, the astronomers showed the 502 exoplanets. In comparison, the Kepler Mission spacecraft using the transit method successfully detected more than 700 exoplanets potential since it was launched in 2009.

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