HD 141937 b

HD 141937 b
Exoplanet List of exoplanets
Parent star
Star HD 141937
Constellation Libra
Right ascension (α) 15h 52m 17.5474s
Declination (δ) −18° 26′ 09.834″
Distance109 ly
(33.5 pc)
Spectral type G2/G3V
Orbital elements
Semi-major axis(a) 1.52 AU
Periastron (q) 0.90 AU
Apastron (Q) 2.14 AU
Eccentricity (e) 0.41 ± 0.01
Orbital period(P) 653.2 ± 1.2 d
(1.788 y)
Orbital speed (υ) 25.4 km/s
Argument of
periastron		 (ω) 187.72 ± 0.8°
Time of periastron (T0) 2,451,847.4 ± 2.0 JD
Semi-amplitude (K) 234.5 ± 6.4 m/s
Physical characteristics
Minimum mass(m sin i)9.68 MJ
(3080 M⊕)
Discovery information
Discovery date April 4, 2001[1]
Discoverer(s) Udry et al.
Discovery method radial velocity
(CORALIE)
Discovery site La Silla Observatory
Discovery status Published
Other designations
HIP 77740 b
Database references
Extrasolar Planets
Encyclopaedia		data
SIMBADdata
Exoplanet Archivedata
Open Exoplanet Cataloguedata

HD 141937 b is an extrasolar planet discovered in April 2001[1] with mass of 9.7 times Jupiter. The mass is minimum since the inclination of the orbit is unknown, which will probably be a brown dwarf instead if the true mass is known. 653-day orbit would place the distance one and a half times farther away from the star as Earth is from the Sun with high eccentricity of 41%.

See also

References

  1. 1 2 "Exoplanets: The Hunt Continues!" (Press release). Garching, Germany: European Southern Observatory. April 4, 2001. Retrieved December 29, 2012.

Coordinates: 15h 52m 17.5474s, −18° 26′ 09.834″


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