The Planet-host Star Iota Horologii
Using HARPS on ESO's 3.6-m 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.
Digital Sky Survey/VirGO.
About the Image
|Release date:||15 April 2008|
|Size:||800 x 774 px|
About the Object
|Type:||• Milky Way : Star|
• Milky Way : Star : Circumstellar Material : Planetary System
|Distance:||55 light years|
|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|
Colours & filters
|Optical||ESO 3.6-metre telescope|