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.

Credit:

Digital Sky Survey/VirGO.

Over de afbeelding

Id:eso0809a
Type:Observatie
Publicatiedatum:15 april 2008
Gerelateerde berichten:eso0809
Grootte:800 x 774 px

Over het object

Naam:Iota Horologii
Type:Milky Way : Star
Milky Way : Star : Circumstellar Material : Planetary System
Afstand:55 lichtjaren
Constellation:Horologium
Categorie:Exoplanets

Afbeeldingstypen

Grote JPEG
116,1 KB

Achtergrond

1024x768
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1280x1024
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1600x1200
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1920x1200
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2048x1536
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Coordinates

Position (RA):2 41 58.21
Position (Dec):-50° 55' 41.97"
Field of view:41.78 x 40.41 arcminutes
Orientation:North is 1.6° right of vertical

Kleuren & filters

BandTelescoop
OptischDigitized Sky Survey 2