HD 224693

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HD 224693
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Cetus
Right ascension 23h 59m 53.83s[1]
Declination −22° 25′ 41.2″[1]
Apparent magnitude (V) +8.23
Characteristics
Spectral type G2IV
U−B color index  ?
B−V color index  ?
Variable type none
Astrometry
Radial velocity (Rv) +1.5 km/s
Proper motion (μ) RA: 148.49 ± 0.88[1] mas/yr
Dec.: 27.37 ± 0.43[1] mas/yr
Parallax (π) 10.16 ± 0.91[1] mas
Distance 320 ± 30 ly
(98 ± 9 pc)
Absolute magnitude (MV) 3.36
Details
Mass 1.29 ± 0.09[2] M
Radius 1.7 ± 0.3 R
Luminosity 3.91 L
Surface gravity (log g) 4.18 ± 0.06[2] cgs
Temperature 6053 ± 28[2] K
Metallicity 0.28 ± 0.02[2]
Other designations
HIP 118319, GSC 06411-00109, SAO 192301
Database references
SIMBAD data

HD 224693 (also known as HIP 118319) is a metal rich[3] yellow subgiant star approximately 320 light-years away[1] in the constellation Cetus.

Planetary system[edit]

In 2006, an extrasolar planet was discovered orbiting HD 224693 by the Keck telescope using radial velocity measurements. A preliminary search for transits using photometric data from Fairborn Observatory was inconclusive because data around the predicted time of transit was too sparse to rule out possible transits.[3]

The HD 224693 planetary system[3]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b >0.71 MJ 0.192 26.73 ± 0.02 0.05 ± 0.03

See also[edit]

References[edit]

External links[edit]

Coordinates: Sky map 23h 59m 53.8329s, −22° 25′ 41.208″