GD 61
The star has a planetary system. It may once have been a main sequence star of spectral type A0V with around three times the mass of the Sun. It has aged and passed through a red giant phase. What was left is a dense hot remnant. This remnant has around 70% of the Sun's mass and a surface temperature of 17280 K. It is thought to be around 600 million years old. This age includes both its life as a main sequence star, and as a white dwarf stellar remnant. It has an apparent magnitude of 14.8. GD 61 was first noted as a potential degenerate star in 1965. This was done in a survey of white dwarf suspects by astronomers from the Lowell Observatory in Arizona.