HD 222582

HD 22582

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
distance 137 light-years (42 pc)
spectral type G5 V
apparent magnitude 7.70
position RA 23h 41m 52s, Dec -05° 59' 09"


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