HR 1614
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Eridanus |
| Right ascension | Template:RA[2] |
| Declination | Template:DEC[2] |
| Apparent magnitude (V) | 6.208[3] |
| Characteristics | |
| Spectral type | K3 V[3] |
| U−B Template:Engvar | +1.00[4] |
| B−V Template:Engvar | +1.06[4] |
| Astrometry | |
| Radial velocity (Rv) | +21.0[5] km/s |
| Proper motion (μ) | RA: Script error: No such module "val". mas/yr[2] Dec.: Script error: No such module "val". mas/yr[2] |
| Parallax (π) | 113.0715±0.0222 mas[2] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | 6.51[6] |
| Details | |
| Mass | Script error: No such module "val".[7] Template:Solar mass |
| Radius | Script error: No such module "val".[7] Template:Solar radius |
| Surface gravity (log g) | 4.55[3] cgs |
| Temperature | Script error: No such module "val".[8] K |
| Metallicity [Fe/H] | 0.28[3] dex |
| Rotational velocity (v sin i) | 4.1[9] km/s |
| Age | 2[10] or 4.5[11] Gyr |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| 284 G. Eridani, GJ 183, BD -05°1123, HD 32147, LHS 200, LTT 2142, GCTP 1129.00, SAO 131688, LPM 200, HIP 23311.[1] | |
| Database references | |
| SIMBAD | data |
| ARICNS | data |
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HR 1614 (284 G. Eridani, GJ 183) is a star in the constellation Eridanus. Based upon parallax measurements, it is about Script error: No such module "convert". distant from the Earth.[2] It is a main sequence star with a stellar classification of K3V.[3] The chromosphere has an effective temperature of about 4,945 K,[8] which gives this star the orange hue characteristic of K-type stars.[12] It has about 84% of the Sun's mass and 78% of the Sun's radius.[7]
It is considered a metal-rich dwarf star, which means it displays an unusually high portion of elements heavier than helium in its spectrum. This metallicity is given in term of the ratio of iron to hydrogen, as compared to the Sun. In the case of HR 1614, this ratio is about 90% higher than the Sun.[13] The activity cycle for this star is 11.1 years in length.[14] Based upon gyrochronology, the estimated age of this star is 4.5 Gyr.[11]
This system is a member of a moving group of at least nine stars that share a common motion through space. The members of this group display the same abundance of heavy elements as does HR 1614, which may indicate a common origin for these stars. The space velocity of this group relative to the Sun is 59 km/s.[15] The estimated age of this group is 2 Gyr, suggesting a corresponding age for this star.[10]
See also
References
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External links
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