Citizen scientists discover two planets orbiting Sun-like star.

The discovery was made on the basis of the observation of the luminosity of the star,

more than a month, and with the help of the transiting extrasolar planet observation and satellite tv.

One of the greatest challenges we face in the stars, Are we alone?" While on the planet and hunters have to continue the search for habitable worlds in the milky way galaxy, in the process of discovery as it resonates within the scientific community. The civilian scientists who are involved in the TESS Planet-Hunters have found two planets orbiting a Sun-like star. 

The discovery, published in the journal of the Notices of the Royal Astronomical Society, lists of dozens of civilian scientists who took part in a Nasa-led project. 

The star, named HD 152843, is located about 352 is light years away from Earth and has about the same mass as the Sun, but that is about 1.5 times larger as well as brighter. Around the star to turn two of the exotic countries of the world, and if you compare them to our own Sun, they are inside the orbit of Mercury. 

The planet is 3.4 times larger than the Earth's, but comparable in size, and Neptune), is in orbit around the star in just 12 days. In the meantime, the planet is located at a distance of 5.8 times the size of Earth's orbit HD 152843 about 19-35 days.

TESSA stands for Transiting Exoplanet Survey Satellite, a NASA spacecraft launched in April 2018.

The discovery was made on the basis of the observations of the luminosity of the star, more than a month, and with the help of the Transiting extrasolar planet Observation Satellite (TESS). The brightness of a star changes over the course of the observation, and the planets are within the field of view of the satellites in view, the intensity is reduced. This means that there is at least one planet in orbit around the star. However, all 15 of the scientists involved in the project, noted that at least two transitions, indicating that the two planets are in orbit around the star. 

In the meantime, in order to confirm the presence of the two planets, as well as the accuracy of the data obtained, the scientists used high-precision radial-velocity planetfinder for the Northern Hemisphere Telescope (HARPS-N) in Spain, and the extreme precision spectrometer at the Lowell Observatory. 

"We are the first steps in the direction of finding Earth-like planets, and the study of the earth's atmosphere, and we will continue to be the limits of what we can do," said the paper's lead author Nora Eisner, is a Doctoral student in astrophysics at the University of Oxford. She added that the study of them is of interest in order to define the theory of how planets form and evolve over time. 

Scientists make observations in order to confirm that the masses of the two planets, and the hope is that once the James Webb Telescope, which is likely to be launched in the beginning of the year to become operational, they will be able to dig deeper to see what types of molecules will set the mood in this system.