Transit of exoplanet and exomoon

This animation demonstrates how the measured light curve from the star Kepler-1625b led to the conclusion that the system may consist of not only a planet, but also at least one moon.

When the planet moves in front of its parent star a tiny portion of its light is blocked by the disc of the planet, so we observe a dimming of the light from the star. Right after the exoplanet has finished its transit the starlight is seen to dim slightly again, suggesting the presence of a moon trailing the planet.

Credit:

ESA/Hubble, L. Calçada

About the Video

Id:heic1817b
Release date:3 October 2018, 20:00
Related releases:heic1817
Duration:40 s
Frame rate:30 fps

About the Object

Name:Kepler-1625b
Type:Milky Way : Planet : Satellite
Category:Exoplanets

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