NASA’s TESS Probe Discovers New Planet Named HD 21749B: Investigating NASA’s latest planet Hunting, TESS has discovered a new world outside our solar system, which is orbiting a dwarf star 53 km away. This is the third new planet confirmed by the Transition Exoplanet Survey Satellite (TESS) since its launch in April last year. A planet named HD 21749b, in the constellation Reticulum, circling a bright, nearby dwarf star, about 53 light years away, and TESS appears to be the longest orbiting period of the three planets so far identified.
NASA’s TESS Probe Discovers New Planet Named HD 21749B
The surface of the new planet is likely to be around 300 degrees Fahrenheit – relatively quiet, given its proximity to its star, which is almost as bright as the sun.
Diana Dragomir, a postdoc of the Massachusetts Institute of Technology (MIT) in America, said, “This is the brightest small planet, which we know around this bright star. Surprisingly, it is also 23 times larger than Earth.
NASA’s TESS Probe Discovers New Planet Named HD 21749B. However, it is unlikely that the planet is rocky and therefore is worth living; It is composed of more gas, a type that is much denser than Neptune or Uranus’s atmosphere.
“We believe that this planet will not be gaseous in the form of Neptune or Uranus, which is mostly hydrogen and actually puffed. The planet has a density of water or a thick environment,” said Dragomir.
Smaller, cooler planets
“We know a lot about the atmosphere of the hot planet, but because it is very difficult to find small planets that are orbiting away from their stars, and therefore are cooler, we can talk about these small, cooler planets. We have not been able to learn a lot, but here we were lucky and caught it, and now we can study it in more detail, “said Dragomir.
The other two planets v /s HD 21749b discovered by TESS
HD 21749 B travels to its star 36 days in a relatively leisurely 36 days compared to two other planets – a Super-Earth with a Pi Mensae B, a 6.3-day orbit, and LHS 3844 B, a rocky world in its star. Just gives speed 11 hours. All three planets were discovered in the first three months of TES comments.
Another planet’s evidence?
Researchers have also detected evidence of another planet, orbiting a small, 7.8-day planetary system, although it is yet to be confirmed. If it is confirmed as a planet, then it can be the first Earth-shaped planet discovered by TESS.