HD 4113
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Sculptor |
| HD 4113 A | |
| Right ascension | Template:RA[1] |
| Declination | Template:DEC[1] |
| Apparent magnitude (V) | Script error: No such module "val".[2] |
| HD 4113 B | |
| Right ascension | Template:RA[3] |
| Declination | Template:DEC[3] |
| Apparent magnitude (V) | Script error: No such module "val".[2] |
| Characteristics | |
| Spectral type | G5V and M0–1V[2] |
| B−V Template:Engvar | Script error: No such module "val".[2] |
| Astrometry | |
| HD 4113 A | |
| Radial velocity (Rv) | Script error: No such module "val".[1] km/s |
| Proper motion (μ) | RA: Script error: No such module "val". mas/yr[1] Dec.: Script error: No such module "val". mas/yr[1] |
| Parallax (π) | 23.8256±0.0240 mas[1] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | Script error: No such module "val".[2] |
| HD 4113 B | |
| Radial velocity (Rv) | Script error: No such module "val".[3] km/s |
| Proper motion (μ) | RA: Script error: No such module "val". mas/yr[3] Dec.: Script error: No such module "val". mas/yr[3] |
| Parallax (π) | 23.9023±0.0327 mas[3] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | Script error: No such module "val".[2] |
| Orbit[4] | |
| Companion | HD 4113 C |
| Period (P) | Script error: No such module "val". yr |
| Semi-major axis (a) | Script error: No such module "val". |
| Eccentricity (e) | Script error: No such module "val". |
| Inclination (i) | Script error: No such module "val".° |
| Longitude of the node (Ω) | Script error: No such module "val".° |
| Periastron epoch (T) | Script error: No such module "val". |
| Argument of periastron (ω) (secondary) | Script error: No such module "val".° |
| Semi-amplitude (K1) (primary) | Script error: No such module "val". km/s |
| Details[5] | |
| A | |
| Mass | Script error: No such module "val". Template:Solar mass |
| Radius | Script error: No such module "val".[6] Template:Solar radius |
| Luminosity | Script error: No such module "val".[6] Template:Solar luminosity |
| Surface gravity (log g) | Script error: No such module "val". cgs |
| Temperature | Script error: No such module "val". K |
| Metallicity [Fe/H] | Script error: No such module "val". dex |
| Rotational velocity (v sin i) | 2.324[2] km/s |
| Age | Script error: No such module "val". or Script error: No such module "val".[2] Gyr |
| B | |
| Mass | 0.55[2] Template:Solar mass |
| Surface gravity (log g) | 4.76[2] cgs |
| Temperature | 3,833[2] K |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| C | |
| Mass | Script error: No such module "val".[4] MJup |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Template:Odlist[7] | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
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HD 4113 is a double star system in the southern constellation of Sculptor. It is too faint to be viewed with the naked eye, having an apparent visual magnitude of 7.88.[2] The distance to this star, as estimated by parallax measurements, is 137 light years.[1] It is receding away from the Sun with a radial velocity of +5 km/s.[1]
The primary member of this system, component A, is a Sun-like G-type main-sequence star with a stellar classification of G5V.[2] Estimates of its age are five[2] to seven[5] billion years old, and it is spinning with a leisurely projected rotational velocity of 2.3 km/s.[2] The star is metal rich, with nearly the same mass,[5] radius, and luminosity[6] as the Sun.
Orbiting this star is a giant planet and a brown dwarf (HD 4113 C); the latter has been directly imaged. It also has a co-moving stellar companion, designated component B, which is a red dwarf with a class of M0–1V at an angular separation of Script error: No such module "val".. This angle is equivalent to a projected separation of Script error: No such module "val"..[2]
The most recent parameters for HD 4113 C as of 2022 come from a combination of data from radial velocity, astrometry, and imaging, showing that it is about 52 times the mass of Jupiter, and on an eccentric orbit with a semi-major axis of about 50.4 AU and an orbital period of about 348 years.[4]
Planetary system
On 26 October 2007, Tamuz et al. used the radial velocity method to find a planet with a minimum mass one and half times that of Jupiter orbiting at 1.28 AU away from HD 4113 A. The planet's orbit is highly eccentric.[8]
Template:OrbitboxPlanet begin Template:OrbitboxPlanet
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See also
References
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- ↑ a b c d e f g Template:Cite Gaia DR3
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- ↑ a b c d e Template:Cite Gaia DR3
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- ↑ a b c Template:Cite Gaia DR2
- ↑ Template:Cite simbad
- ↑ Script error: No such module "Citation/CS1".
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External links
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