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.

Credit:

Digital Sky Survey/VirGO.

About the Image

Id:eso0809a
Type:Observation
Release date:15 April 2008
Related releases:eso0809
Size:800 x 774 px

About the Object

Name:Iota Horologii
Type:• Milky Way : Star
• Milky Way : Star : Circumstellar Material : Planetary System
Distance:55
Constellation:Horologium

Image Formats

Fullsize Original
325.1 KB
Large JPEG
114.9 KB
Screensize JPEG
116.9 KB

Wallpapers

1024x768
130.3 KB
1280x1024
191.5 KB
1600x1200
244.5 KB
1920x1200
266.0 KB
2048x1536
343.5 KB

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

Colours & filters

BandTelescope
OpticalDigitized Sky Survey 2

 

Also see our