More Planetary Diversity---- Through faith we understand that the worlds were framed by the word of God,.. Hebrews 11:3
"Using data from NASA’s Transiting Exoplanet Survey Satellite
(TESS) and the HARPS-N spectrograph at the 3.6-m Telescopio Nazionale
Galileo, astronomers have discovered and confirmed an ultra-short period
keystone planet orbiting an M2 dwarf (red dwarf star) called TOI-1634.
Radius valley planets, which we refer to as keystone planets, are
valuable targets to conduct tests of the competing radius valley
emergence models across a range of stellar masses.
Doing so requires that we characterize the bulk compositions of a
sample of keystone planets using precise radial velocity measurements.....confirmation and characterization of one such keystone planet from TESS: TOI-1634b....
TOI-1634b is a sub-Neptune planet with a radius of 1.8 times that of Earth and a mass of 4.8 Earth masses.
The world has an orbital period of 1 day and lies 0.015 AU (astronomical units) from its host star, the M2 dwarf TOI-1634.
The mass and radius of TOI-1634b are inconsistent with an Earth-
like composition.
Also known as TIC 201186294 or 2MASS J03453363+3706438, the system is
located 115 light-years away in the constellation of Perseus.
The bulk composition of TOI-1634b is inconsistent with models of
thermally-driven mass loss (i.e. photoevaporation and core-powered mass
loss) and with gas-poor formation." SciNews
---The orbital period is the time a given astronomical object takes to complete one orbit
around another object, and applies in astronomy usually to planets or
asteroids orbiting the Sun, moons orbiting planets, exoplanets orbiting
other stars, or binary stars.
