Spanish astronomers confirm two exoplanets around one star
Spanish astronomers confirmed two exoplanets initially identified by NASA's TESS, with follow-up observations including MuSCAT2 at Teide Observatory. TOI-1752 b completes an orbit in under 24 hours and receives intense stellar radiation, making its dayside possibly hot enough to melt rock and potentially release material that could form a secondary atmosphere. TOI-1752 c is larger than Earth but smaller than Neptune, orbits in an optimistic habitable zone, and has an estimated equilibrium temperature around 20°C and similar stellar energy to Earth, though its atmosphere and composition remain unknown and merit further study.
Two planets around one star show extreme temperature contrasts.
Context
TESS first flagged the two planets by detecting repeated starlight dips. Spanish teams used ground observations to confirm them. Scientists will likely pursue atmospheric and composition studies next.
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