The HD 16417 system contains 1 exoplanet. It is located 82.82 light years away from the solar system.
|Mass||1.2 solar masses|
|Radius||1.64 solar radiae|
|Stellar Metallicity||0.06 decimal exponent|
|Age||7 billion years|
At more than 10 Earth masses, HD 16417 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||22.100 Earth masses|
|Density||0.972 grams per cubic centimeter|
|Radius||5.000 Earth radiae|
|Semi-major Axis||0.14 AU|
|Orbital Period||17.240 days|
|Discovery Method||Radial Velocity|
|Discovery Facility||Anglo-Australian Telescope|
|Discovery Telescope||3.9 m Anglo-Australian Telescope|
|Discovery Instrument||UCLES Spectrograph|
|Reference||O'Toole et al. 2009|