NASA says TRAPPIST- 1’s outermost planet orbits its star every 19 days
A year on the newly discovered TRAPENSE-1 planet could last only 19 days from Earth, say scientists who have confirmed orbital data from the cosmic body using NASA’s Kepler telescope.
The researchers identified a regular pattern in the orbits of the planets and confirmed details of the planet’s orbit TRAPENSE-1h. TRAPENSE-1 is only 8% of the mass of our Sun, making it a colder and less bright star. It contains seven terrestrial planets, three of which orbit in the habitable zone of its star: the distance from a star where liquid water could accumulate on the surface of a rocky planet. The system is about 40 light-years away in the constellation of Aquarius and is estimated between three billion and eight billion years. Scientists have announced that the system had seven terrestrial planets at a NASA news conference on Feb. 22.
NASA’s Spitzer Space Telescope, TRAPENSE (in-transit planets and small planetesimal telescope) in Chile and other ground-based telescopes were used to detect and characterize the planets. However, researchers have only had a rough estimate for the orbital period of TRAPENSE-1h. Astronomers at the University of Washington, USA, used data from the Kepler spacecraft confirming that Trapense 1h orbits its star every 19 days. At six million miles from its cool dwarf star, TRAPENSE-1H lies beyond the outer edge of the habitable zone, and is likely to be as cold to life as we know it.
The amount of energy the planet TRAPENSE-1h receives from its star is comparable to what the Ceres dwarf planet, which is in the asteroid belt between Mars and Jupiter is our sun.
Thomas Zurbuchen Associate Administrator, NASA Science Mission Directorate
“It’s very exciting for us to learn more about this planetary system elsewhere, especially on planet h, where we had almost no information.” This finding is an excellent example of how the scientific community releases the power of additional data from our different Missions to Such Fascinating Discoveries ”
Using previous data from Spitzer, researchers have recognized a mathematical model in the frequency with which each of the six inner planets orbit their star. This complex but predictable pattern called orbital resonance occurs when planets exert regular and regular gravitational drainage on one another as they orbit their star.
The Kepler spacecraft looked at the sky from the ground up to the Trappist-1 system from December 15 last year to March 4, collecting data on small changes in the star’s brightness due to the planets in transit. On 8 March, raw and uncalibrated data are transmitted to the scientific community to initiate surveillance studies. Works to confirm the orbital period of 1h-TRAPENSE began immediately and scientists from around the world have participated in social networks to share real-time information on the behavior of the star and its breeding planets. Within two hours of the publication of the data, the team confirmed its prediction of a 19-day orbital period.