HD 166 is a star in the constellation Andromeda, approximately 45 light years away from Earth. It is a dwarf star like our Sun, although it is slightly cooler and dimmer. This star has a surface temperature of 5,327 K (9128 °F, 5053 °C). It is 44 light years away from Earth.
The habitable zone for an Earth-like planet would be about 0.77 A.U.s from the star.
- Constellation: Andromeda
- Right ascension: 00h 06m 36.78s
- Declination: +29° 01′ 17.4″
- Apparent magnitude: 6.13
- Mass: 0.889 Solar mass
- Surface temperature: 5,327 K (9128 °F, 5053 °C)