HD 215497 c

HD 215497 c
Exoplanet List of exoplanets
Parent star
Star HD 215497
Constellation Tucana
Right ascension (α) 22h 46m 36.755s[1]
Declination (δ) –56° 35 58.32[1]
Apparent magnitude (mV) 8.97
Distance142 ± 7[1] ly
(44 ± 2[1] pc)
Spectral type K3V
Mass (m) 0.872 ± 0.023[2] M
Radius (r) 1.01 ± 0.11 R
Temperature (T) 5113 ± 93[2] K
Metallicity [Fe/H] 0.23 ± 0.07[2]
Orbital elements
Semi-major axis(a) 1.282[2] AU
Eccentricity (e) 0.49 ± 0.04[2]
Orbital period(P) 567.94 ± 2.70[2] d
Argument of
periastron
(ω) 45 ± 4[2]°
Time of periastron (T0) 2,455,003.48 ± 5.15[2] JD
Semi-amplitude (K) 10.10 ± 0.65[2] m/s
Physical characteristics
Minimum mass(m sin i)0.33[2] MJ
(104.3[2] M)
Discovery information
Discovery date October 19, 2009
Discoverer(s) Lo Curto et al.
Discovery method Radial velocity (HARPS)
Discovery site La Silla Observatory
Discovery status Published[2]
Database references
Extrasolar Planets
Encyclopaedia
data
SIMBADdata
Exoplanet Archivedata
Open Exoplanet Cataloguedata

HD 215497 c is an extrasolar planet which orbits the G-type main sequence star HD 215497, located approximately 142 light years away in the constellation Tucana. This planet has at least one-thirds the mass of Jupiter and takes 568 days to orbit the star at a semimajor axis of 1.282 AU.[2] This planet was detected by HARPS on October 19, 2009, together with 29 other planets, including HD 215497 b.

References

Coordinates: 22h 46m 36.7543s, −56° 35′ 58.322″


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