TRAPPIST-1 b : New Observations
New observations from the James Webb Space Telescope reveal that TRAPPIST-1b is unlikely to have an atmosphere wrapped around its rocky body.
- TRAPPIST-1 b is a hot rocky exoplanet orbiting an ultracool red dwarf star TRAPPIST-1.
- It is the innermost of seven known planets in the TRAPPIST-1 system.
- It has 1.4 times the mass and 1.1 times the radius of Earth.
- It orbits its star at a distance of 0.011 astronomical unit (AU), completing one circuit in just 1.51 Earth days.
- It receives about four times the amount of energy that Earth gets from the Sun.
- TRAPPIST-1b is tidally locked, meaning that one side of the planet always faces the star, and one side looks away.