NASA’s new spacecraft TESS discovers its Planet, Third large as the Earth

Rodiano Bonacci
Gennaio 12, 2019

It looks like the newly discovered planet might be rocky. On this basis, they have explored many of its features. The new planet, K2-288Bb, orbits the smaller, dimmer star every 31.3 days.

Diana Dragomir of the Kavli Institute for Astrophysics and Space Research, head of the team that discovered this new planet, said on this: "It is the coldest planet yet to be sunk, like the Sun, which is about to be We know now". This star has been found to be very similar to our Sun in terms of size and mass. Due to its size, it comes in the sub-Neptune category, which means that it will be the first planet to be nearly Earth-sized, discovered by TESS.

Well if that substance really is a planet which would obviously be known after a bit of research then that is really going to be a big news for the scientists and the hopes of life over that planet are something beneficial in aspects like we could also be able to find some more instances to the situation based on the power of research and the speed of research like in how much time the scientists are going to reveal more about it. "In contrast, the new planet, called Pi Mensae c, has a circular orbit close to the star, and these orbital differences will prove key to understanding how this unusual system formed". The star is a cool M-type dwarf star about one-fifth the size of our Sun.

Estimated at about 1.9 times Earth's size, K2-288Bb is half the size of Neptune. It is the longest-period transiting planet within 100 light-years of the solar system, and it has the coolest surface temperature of a transiting exoplanet around a star brighter than 10th magnitude, or about 25 times fainter than the limit of unaided human vision. When this planet is confirmed, it will become the smallest planet discovered by TES. Dips in the light are likely to mean a planet is passing in front of that star. Unfortunately, the author's also point out the HD 21749b likely is not an ideal target for future atmospheric follow-ups with the upcoming James Webb Space Telescope (JWST). NASA launched it in April a year ago.

Scientists have indicated the sign of another potential planet orbiting the HD 21749 star.

To deal with this, early versions of the software that was used to prepare the data for planet-finding analysis simply ignored the first few days of observations - and that is where the third transit was hiding. TESS will operate for two years and will manage to examine nearly the entire sky in that time.

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