The HD 4308 system contains 1 exoplanet. It is located 71.81 light years away from the solar system.
|Mass||0.93 solar masses|
|Radius||1.02 solar radiae|
|Stellar Metallicity||-0.35 decimal exponent|
|Age||4.3 billion years|
At more than 10 Earth masses, HD 4308 b is an ice giant, a planet that is made up mostly of volatiles like water, amonia and methane, and enveloped by a dense hydrogen and helium atmosphere, much like Uranus and Neptune.
|Mass||15.892 Earth masses|
|Density||1.250 grams per cubic centimeter|
|Radius||4.120 Earth radiae|
|Semi-major Axis||0.12 AU|
|Orbital Period||15.560 days|
|Discovery Method||Radial Velocity|
|Discovery Facility||La Silla Observatory|
|Discovery Telescope||3.6 m ESO Telescope|
|Discovery Instrument||HARPS Spectrograph|
|Reference||Udry et al. 2006|