HD 27894

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HD 27894
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Reticulum
Right ascension 04h 20m 47.04716s[1]
Declination –59° 24′ 39.0184″[1]
Apparent magnitude (V) 9.42
Characteristics
Spectral type K2 V[2]
U−B color index +0.90[3]
B−V color index +1.005[3]
Astrometry
Proper motion (μ) RA: +182.16[1] mas/yr
Dec.: +271.77[1] mas/yr
Parallax (π) 22.79 ± 0.85[1] mas
Distance 143 ± 5 ly
(44 ± 2 pc)
Details
Mass 0.86 ± 0.06[4] M
Surface gravity (log g) 4.54 ± 0.05[4] cgs
Temperature 4920 ± 45[4] K
Metallicity [Fe/H] +0.20[5] dex
Age 7.7 ± 2.3[4] years
Other designations
CD-59 829, HD 27894, HIP 20277, LTT 1953.[3]

HD 27894 is a 9th magnitude star located approximately 138 light years away in the constellation of Reticulum. It is an orange dwarf (spectral type K2V), a type dimmer and cooler than our Sun.

In 2005, the Geneva Extrasolar Planet Search Team announced some of the discoveries of an extrasolar planet orbiting the star.[6]

The HD 27894 planetary system[6]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b >0.62 MJ 0.122 17.991 ± 0.007 0.049 ± 0.008

See also

References

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External links

Coordinates: Sky map 04h 20m 47.0473s, −59° 24′ 39.014″


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