First ever image of a multi-planet system around a Sun-like star
The two planets are visible as two bright dots in the centre (TYC 8998-760-1b) and bottom right (TYC 8998-760-1c) of the frame, noted by arrows. Other bright dots, which are background stars, are visible in the image as well. By taking different images at different times, the team were able to distinguish the planets from the background stars.
The image was captured by blocking the light from the young, Sun-like star (top-left of centre) using a coronagraph, which allows for the fainter planets to be detected. The bright and dark rings we see on the star’s image are optical artefacts.Relevante Bilder
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ExoplanetEin Exoplanet ist ein planetarer Himmelskörper außerhalb des vorherrschenden gravitativen Einflusses unserer Sonne, aber innerhalb des gravitativen Einflusses eines anderen Sterns oder Braunen Zwergs, der eine ausreichende Masse hat, um eine annähernd kugelförmige Gestalt anzunehmen. Extrasolare Planeten gehören also nicht unserem Sonnensystem, sondern anderen Planetensystemen an. .. weiterlesen