Webb image archive

Effect of Atmosphere on a Planet’s Dayside Temperature

Researchers can determine whether or not a tidally locked rocky planet has an atmosphere by comparing its measured temperature to computer models. The dayside temperature of TRAPPI...

Date
Nov 20, 2025
Observatory
James Webb Space Telescope
Credit
NASA / ESA / CSA / STScI
Archive ID
effect-of-atmosphere-on-a-planets-dayside-temperature
Researchers can determine whether or not a tidally locked rocky planet has an atmosphere by comparing its measured temperature to computer models. The dayside temperature of TRAPPIST-1 b, for example, is very close to the model that assumes the planet has no atmosphere.

Image Details

About the Object

  • R.A. Position
    R.A. PositionRight ascension – analogous to longitude – is one component of an object's position.
    23h 06m 30s
  • Dec. Position
    Dec. PositionDeclination – analogous to latitude – is one component of an object's position.
    -05d 02m 30s
  • Constellation
    ConstellationOne of 88 recognized regions of the celestial sphere in which the object appears.
    Aquarius
  • Distance
    DistanceThe physical distance from Earth to the astronomical object. Distances within our solar system are usually measured in Astronomical Units (AU). Distances between stars are usually measured in light-years. Interstellar distances can also be measured in parsecs.
    40 light-years

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