HD 222582
HD 222582 is a Sunlike star in the constellation Aquarius around which has been discovered a massive exoplanet in an orbit somewhat larger than that of Earth's around the Sun.
Host star | |
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distance | 137 light-years (42 pc) |
spectral type | G5 V |
apparent magnitude | 7.70 |
position | RA 23h 41m 52s, Dec -05° 59' 09" |
Planet | |
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mass (Jupiter=1) | 8.4 |
semimajor axis | 1.35 AU (202 million km, 126 million mi) |
orbital period | 572 days |
eccentricity | 0.76 |
discovery | 1999, SFSU Planet Search |
method | radial velocity |