System: HIP 21251 - All bodies
Distance to Sol: 437.84 ly
Spectral Class: Y - Not Scoopable
Distance To Arrival: 3,269 ls
Luminosity Class: V - Main-sequence star (dwarf)
Age: 1,010 Million years
Solar Masses: 0.0195
Solar Radius: 0.0930
Surface Temperature: 523 K
Orbital Period: 311.6 D
Semi Major Axis: 0.00 AU
Orbital Eccentricity: 0.1241
Orbital Inclination: 9.13 °
Arg Of Periapsis: 347.89 °
Absolute Magnitude: 21.0763
Attractions: None

Class Y dwarfs are the coolest of the brown dwarfs. Surface temperatures are less than 700 K, and are effectively very large gas giant planets, with some stellar properties.

The term dwarf star refers to a variety of distinct classes of stars. The term was originally coined in 1906 when the Danish astronomer Ejnar Hertzsprung noticed that the reddest stars - classified as K and M in the Harvard scheme - could be divided into two distinct groups. They are either much brighter than the Sun, or much fainter. To distinguish these groups, he called them "giant" and "dwarf" stars, the dwarf stars being fainter and the giants being brighter than the sun.

Rings - Reserve Pristine
  Ring Type Mass Semi Major Axis Inner Radius Outer Radius  
HIP 21251 A 6 A Ring Metal Rich 12,287,000,000,000.00 MT ? 106,780 KM 694,330 KM