7.67
Apparent Mag64.5
Distance (ly)K1-K2V
Spectral Type5,040
Temperature (K)HD 189733 hosts a famous hot Jupiter whose deep blue color was the first exoplanet color directly determined.
Stellar Data
Apparent Magnitude7.67
Absolute Magnitude4.58
Distance64.5 light-years
Spectral TypeK1-K2V
Temperature5,040 K
Luminosity0.33 L☉
Radius0.805 R☉
Mass0.846 M☉
Right Ascension20h 00m 43.7s
Declination+22° 42′ 39.1″
ConstellationVulpecula
Notable Facts
- HD 189733 b was the first exoplanet whose color was determined (deep blue)
- The blue color comes from silicate particles raining sideways in 7000 km/h winds
- Temperature mapping revealed weather patterns on the planet