HD 93083

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HD 93083
Observation data
Epoch J2000      Equinox J2000
Constellation Antlia
Right ascension 10h 44m 20.914s[1]
Declination –33° 34′ 37.28″[1]
Apparent magnitude (V) 8.33[2]
Characteristics
Spectral type K2IV-V[2]
B−V color index 0.945
Astrometry
Radial velocity (Rv) 41.7 ± 2[2] km/s
Proper motion (μ) RA: –93.85 ± 0.93[1] mas/yr
Dec.: –150.99 ± 0.70[1] mas/yr
Parallax (π) 35.90 ± 0.89[1] mas
Distance 91 ± 2 ly
(27.9 ± 0.7 pc)
Absolute magnitude (MV) 6.03
Details
Mass 0.7 ± 0.04 M
Radius 1.03 R
Luminosity 0.4 L
Temperature 4995 K
Metallicity 0.15 ± 0.06
Age 6×109 years
Other designations
HIP 52521, CD-32° 7598, GJ 1137, PPM 288057, GSC 07190-02048, SAO 201693
Database references
SIMBAD data
ARICNS data
Extrasolar Planets
Encyclopaedia
data

HD 93083 is an 8th magnitude star located approximately 91 light years[1] away in the southern constellation of Antlia. It is an orange dwarf (spectral class K2V), somewhat cooler and less luminous than our Sun.[2]

Planetary system[edit]

In 2005, the discovery of a planet orbiting the star was announced. This is another discovery using the radial velocity method with the HARPS spectrograph.[3]

The HD 93083 planetary system[3]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b 0.37 MJ 0.477 143.58 ± 0.60 0.14 ± 0.03

See also[edit]

References[edit]

External links[edit]

Coordinates: Sky map 10h 44m 20.9149s, −35° 34′ 37.279″