HD 213240

HD 213240 is a star with a planetary system , located in approximately 40.75 parsecs away from the solar system is. The star has at least one planet .

The star

The star has about 1.22 times the mass of our sun . Its apparent magnitude is 6.81 mag, its spectral class G4 IV. The discovery of the exoplanet was announced on April 3, 2001.

The planet

→ Main article : HD 213240 b

The exoplanet was named HD 213240 b and was discovered by measuring the radial velocity of the central star . The planet has at least 4.5 times the mass of Jupiter . The planet needs 951 ± 42 days to orbit its star.

Web links

• Brief description of the star and the planet ( Memento from May 6, 2012 in the Internet Archive )
• Observatoire des Geneve: A 4.5 Jupiter-mass planet orbiting HD 213240 ( Memento from February 12, 2009 in the Internet Archive )
• I pianeti extrasolari