Near-infrared image of AB Doradus A and its companion

Enhanced, false-colour near-infrared image of AB Dor A and C. The faint companion "AB Dor C" — seen as the pink dot at 8 o'clock — is 120 times fainter than its primary star. The tiny separation between A and C, only 0.156 arcsec, is smaller than a one Euro coin seen at 20 km distance. Nevertheless, the new NACO SDI camera was able to distinguish it as a "redder" dot surrounded by the "bluer" light from AB Dor A. The orbit of AB Dor C around AB Dor A is shown as a yellow ellipse. It takes 11.75 years for the 93 Jupiter-mass companion to complete this orbit.

Herkunftsnachweis:

ESO

Über das Bild

ID:eso0503a
Typ:Beobachtung
Veröffentlichungsdatum:19. Januar 2005
Dazugehörige Veröffentlichungen:eso0503
Größe:800 x 671 px

Über das Objekt

Name:AB Doradus
Typ:Milky Way : Star
Milky Way : Star : Type : Variable : Flare Star
Milky Way : Star : Type : Brown Dwarf
Milky Way : Star : Grouping : Triple
Entfernung:50 Lichtjahre
Kategorie:Stars

Bildformate

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88,8 KB

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Farben & Filter

SpektralbereichTeleskop
Infrarot
Near-IR
Very Large Telescope
NACO
Infrarot
Near-IR
Very Large Telescope
NACO