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.

Crédit:

Digital Sky Survey/VirGO.

À propos de l'image

Identification:eso0809a
Type:Observation
Date de publication:15 avril 2008
Communiqués de presse en rapport:eso0809
Taille:800 x 774 px

À propos de l'objet

Nom:Iota Horologii
Type:Milky Way : Star
Milky Way : Star : Circumstellar Material : Planetary System
Distance:55 années lumière
Constellation:Horologium
Catégorie:Exoplanets

Image Formats

Grand JPEG
116,1 Kio
JPEG taille écran
117,3 Kio

Fonds d'écran

1024x768
130,7 Kio
1280x1024
191,9 Kio
1600x1200
244,9 Kio
1920x1200
266,2 Kio
2048x1536
343,7 Kio

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

Couleurs & filtres

DomaineTélescope
VisibleDigitized Sky Survey 2