System: Eta Aquarii - All bodies
Distance to Sol: 167.90 ly
Spectral Class: B - Scoopable
Luminosity Class: V - Main-sequence star (dwarf)
Age: 336 Million years
Solar Masses: 3.6250
Solar Radius: 2.8992
Surface Temperature: 13,101 K
Absolute Magnitude: 0.6794
Attractions: None

Class B stars are very luminous blue-white stars. They range in mass from 2 to 16 solar masses and have a surface temperature reaching 30,000 K. Their lifetimes are shorter than most main sequence stars.

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.