The planet has been discovered outside the new solar system called the Kepler-1f, almost twice the volume of Neptune and 2 times the volume of Earth, according to the . Also, each circuit around its star takes 4 days. Ierestingly, the Kepler-2F has not been tracked so far.
The reason is that NASA’s Kepler Space Telescope, which discovered 3,000 planets in its five years, focused on ideifying planets with transit method. More precisely, when the planet passes through the star, its light becomes less and astronomers can ideify and calculate the planets, but the Capler Telescope could not ideify the planets that exist above their vision to the star, so many of the planets remained unknown.
Of course, if the unknown planets are part of the multi -planetary system, the researchers can observe them. The Kepler-1 poem has three rocky cloud planets and a huge gas planet that was later discovered. The gap between the circuits of these planets indicated that there is probably another planet. The researchers were able to predict at least one other planet by accurately measured the circuits.
“The problem is not precisely the planets that do not exist, but to find conditions where the planet can be deduced from that place,” said one authors.
The initial ideification of a planet by the Kepler telescope is usually followed by observations from Earth. Astronomers, using the radial velocity (RV), can find how much power to the star and thus measure its mass. Sometimes the same method also leads to the discovery of new planets, such as the dista planet called Kepler-1.
In the poems, each planet is not only influenced by its star’s gravity, but other planets in the poem. These forces change a little when a planet passes through the star. This phenomenon is called “changes in the time of passage” (TTV). These changes can reveal the existence of hidden planets, even if they do not directly pass the star in fro of the star.
When researchers see TTVs that are not related to known planets, they can confidely state that an unknown planet has observed in the poem.
In this regard, the researchers observed the gaps of the ideified systems and used RV and TTV to search for a missing planet.
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