 The main star, 4th magnitude GJ 822.1 A, is a yellowish white subgiant star of the spectral type F2IV.It therefore has a surface temperature of 6,000 to 7,500 kelvins and is larger, hotter, and several times as bright as the Sun.Its companion, 6th magnitude GJ 822.1 B, is a yellow main sequence star of the spectral type G0V.