HD 28254

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HD 28254
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Dorado
Right ascension 04h 24m 50.70s[1]
Declination –50° 37′ 19.9″[1]
Apparent magnitude (V) 7.71
Characteristics
Spectral type G5V
Apparent magnitude (B) 8.41
Apparent magnitude (R) 7.7
Apparent magnitude (J) 6.395
Apparent magnitude (H) 6.13
Apparent magnitude (K) 6.006
B−V color index 0.70
V−R color index 0.01
Astrometry
Proper motion (μ) RA: -67.15 ± 0.59[1] mas/yr
Dec.: -144.50 ± 0.53[1] mas/yr
Parallax (π) 18.29 ± 0.53[1] mas
Distance 178 ± 5 ly
(55 ± 2 pc)
Absolute magnitude (MV) 3.97
Details
Mass 0.87 M
Radius 1.78 ± 0.04 R
Luminosity 2.397 ± 0.202 L
Surface gravity (log g) 3.82 cgs
Temperature 5400 ± 100 K
Metallicity 0.36
Other designations
CD–50°1385, GC 5376, HIP 20606, PPM 333464, SAO 233508
Database references
SIMBAD data
Exoplanet Archive data
Extrasolar Planets
Encyclopaedia
data

HD 28254 is an 8th magnitude G-type main sequence star located approximately 178 light years[1] away in the constellation Dorado. This star is larger, cooler, brighter, and less massive than our Sun. Also its metal content is 2.3 times as much as the Sun. In 2009, a gas giant planet was found in orbit around the star.

The HD 28254 planetary system[2]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b ≥1.16+0.10
−0.06
 MJ
2.15+0.04
−0.05
1116 ± 26 0.81+0.05
−0.02

See also[edit]

References[edit]

Coordinates: Sky map 04h 24m 50.7052s, −50° 37′ 19.889″