The planet-host star Iota Horologii

Using HARPS on the ESO 3.6-metre telescope at La Silla, astronomers were able to study in great detail the star Iota Horologii, known to harbour a giant planet, and make a very precise portrait of it: its temperature is 6150 K, its mass is 1.25 times that of the Sun, and its age is 625 million years. Moreover, the star is found to be more metal-rich than the Sun by about 50%. This means the star must have drifted from the Hyades cluster where it formed.

Bildnachweis:

Digital Sky Survey/VirGO.

Über das Bild

ID:eso0809a
Typ:Beobachtung
Veröffentlichungsdatum:15. April 2008
Dazugehörige Veröffentlichungen:eso0809
Größe:800 x 774 px

Über das Objekt

Name:Iota Horologii
Typ:Milky Way : Star
Milky Way : Star : Circumstellar Material : Planetary System
Entfernung:55 Lichtjahre
Constellation:Horologium
Kategorie:Exoplanets

Bildformate

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Koordinaten

Position (RA):2 41 58.21
Position (Dec):-50° 55' 41.97"
Field of view:41.78 x 40.41 arcminutes
Orientierung:Die Nordrichtung liegt 1.6° rechts zur Vertikale

Farben & Filter

SpektralbereichTeleskop
OptischDigitized Sky Survey 2