Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Dorado |
Right ascension | 04h 15m 56.90154s [1] |
Declination | −53° 18′ 35.3067″ [1] |
Apparent magnitude (V) | 7.63 [2] |
Characteristics | |
Spectral type | K4.5 Vk: [3] |
U−B color index | +1.08 [2] |
B−V color index | +1.12 [2] |
Astrometry | |
Radial velocity (Rv) | −23.4±0.3 [4] km/s |
Proper motion (μ) |
RA: +784.529
mas/
yr
[1] Dec.: +396.695 mas/ yr [1] |
Parallax (π) | 76.6638 ± 0.0146 mas [1] |
Distance | 42.544 ± 0.008
ly (13.044 ± 0.002 pc) |
Absolute magnitude (MV) | +7.06 [5] |
Details | |
Mass | 0.73±0.09 [6] M☉ |
Radius | 0.70±0.05 [6] R☉ |
Luminosity | 19.6±0.5% [1] L☉ |
Surface gravity (log g) | 4.64 [7] cgs |
Temperature | 4,602±80 [7] K |
Metallicity [Fe/H] | +0.16±0.01 [7] dex |
Rotational velocity (v sin i) | 1 [8] km/s |
Age | 4.5 [9] Gyr |
Other designations | |
Database references | |
SIMBAD | data |
ARICNS | data |
HD 27274, also known as Gliese 167, is a solitary, [11] orange hued star located in the southern constellation Dorado. It has an apparent magnitude of 7.63, [2] making it readily visible in binoculars, but not to the naked eye. Based on parallax measurements from the Gaia spacecraft, the star is known to be located 42.5 light-years (13.02 parsecs) away from the Solar System [1] However, it is drifting closer with a heliocentric radial velocity of −23 km/s. At its current distance, HD 27274 is dimmed down by 0.05 magnitudes due to interstellar dust. [12]
HD 27274 has a stellar classification of K4.5 Vk:, [3] indicating that it is a K-type main-sequence star with interstellar absorption features. However, there is uncertainty behind the classification. At present it has 73% the mass of the Sun and 70% of its radius. [6] It has an effective temperature of 4,602 K, [7] but its small size yields a luminosity only 19.6% that of the Sun. [1] HD 27274 is metal enriched, having an iron abundance 44.6% above solar levels. [7] The star spins with a projected rotational velocity of 1 km/s, [8] and is estimated to be 4.5 billion years old. [9] This is similar to the Sun's current age (4.6 Gyr).
Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Dorado |
Right ascension | 04h 15m 56.90154s [1] |
Declination | −53° 18′ 35.3067″ [1] |
Apparent magnitude (V) | 7.63 [2] |
Characteristics | |
Spectral type | K4.5 Vk: [3] |
U−B color index | +1.08 [2] |
B−V color index | +1.12 [2] |
Astrometry | |
Radial velocity (Rv) | −23.4±0.3 [4] km/s |
Proper motion (μ) |
RA: +784.529
mas/
yr
[1] Dec.: +396.695 mas/ yr [1] |
Parallax (π) | 76.6638 ± 0.0146 mas [1] |
Distance | 42.544 ± 0.008
ly (13.044 ± 0.002 pc) |
Absolute magnitude (MV) | +7.06 [5] |
Details | |
Mass | 0.73±0.09 [6] M☉ |
Radius | 0.70±0.05 [6] R☉ |
Luminosity | 19.6±0.5% [1] L☉ |
Surface gravity (log g) | 4.64 [7] cgs |
Temperature | 4,602±80 [7] K |
Metallicity [Fe/H] | +0.16±0.01 [7] dex |
Rotational velocity (v sin i) | 1 [8] km/s |
Age | 4.5 [9] Gyr |
Other designations | |
Database references | |
SIMBAD | data |
ARICNS | data |
HD 27274, also known as Gliese 167, is a solitary, [11] orange hued star located in the southern constellation Dorado. It has an apparent magnitude of 7.63, [2] making it readily visible in binoculars, but not to the naked eye. Based on parallax measurements from the Gaia spacecraft, the star is known to be located 42.5 light-years (13.02 parsecs) away from the Solar System [1] However, it is drifting closer with a heliocentric radial velocity of −23 km/s. At its current distance, HD 27274 is dimmed down by 0.05 magnitudes due to interstellar dust. [12]
HD 27274 has a stellar classification of K4.5 Vk:, [3] indicating that it is a K-type main-sequence star with interstellar absorption features. However, there is uncertainty behind the classification. At present it has 73% the mass of the Sun and 70% of its radius. [6] It has an effective temperature of 4,602 K, [7] but its small size yields a luminosity only 19.6% that of the Sun. [1] HD 27274 is metal enriched, having an iron abundance 44.6% above solar levels. [7] The star spins with a projected rotational velocity of 1 km/s, [8] and is estimated to be 4.5 billion years old. [9] This is similar to the Sun's current age (4.6 Gyr).