Comparison between the Sun and the ultracool dwarf star TRAPPIST-1

This picture shows the Sun and the ultracool dwarf star TRAPPIST-1 to scale. The faint star has only 11% of the diameter of the sun and is much redder in colour.

As the planets found around TRAPPIST-1 orbit much closer to their star than Mercury is to the Sun, they are exposed to similar levels of radiation as Venus, Earth and Mars in the Solar System.

Credit:

ESO

About the Image

Id:heic1713b
Type:Artwork
Release date:31 August 2017, 16:00
Related releases:heic1713
Size:4793 x 3442 px

About the Object

Name:TRAPPIST-1
Type:Milky Way : Star : Type : Brown Dwarf
Category:Exoplanets
Illustrations

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