14 Sagittae
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquila[1] |
| Right ascension | Template:RA[2] |
| Declination | Template:DEC[2] |
| Apparent magnitude (V) | 5.89[3] |
| Characteristics | |
| Spectral type | B9p HgMn[4] |
| U−B Template:Engvar | −0.44[3] |
| B−V Template:Engvar | −0.06[3] |
| Astrometry | |
| Radial velocity (Rv) | −21.7[5] km/s |
| Proper motion (μ) | RA: +5.28[6] mas/yr Dec.: −8.99[6] mas/yr |
| Parallax (π) | 4.9142±0.0849 mas[2] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | −0.72[1] |
| Orbit[7] | |
| Period (P) | 61.541 d |
| Eccentricity (e) | 0.49 |
| Periastron epoch (T) | 2440799.01 JD |
| Argument of periastron (ω) (secondary) | 345° |
| Semi-amplitude (K1) (primary) | 4.2 km/s |
| Details | |
| 14 Sge A | |
| Luminosity | 291.53[1] Template:Solar luminosity |
| Surface gravity (log g) | 3.60[4] cgs |
| Temperature | 13,200[4] K |
| Rotational velocity (v sin i) | Script error: No such module "val".[8] km/s |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Template:Odlist[9] | |
| Database references | |
| SIMBAD | data |
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14 Sagittae is a binary star[7] system in the equatorial constellation of Aquila.[10] 14 Sagittae is the Flamsteed designation. It appears as a sixth magnitude star, near the lower limit of visibility to the naked eye, having an apparent visual magnitude of 5.89.[3] The system is located 660 light years away, as determined from its annual parallax shift of Script error: No such module "val"..[2] It is moving closer to the Earth with a heliocentric radial velocity of –22 km/s.[5]
This is a single-lined spectroscopic binary with an orbital period of 61.5 days and an eccentricity of 0.49.[7] The visible component is a chemically peculiar mercury-manganese star[11] with a stellar classification of B9p HgMn.[4] It is narrow-lined with a projected rotational velocity of 7 km/s.[8] The star is radiating 292[1] times the Sun's luminosity from its photosphere at an effective temperature of 13,200 K.[4]
References
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- ↑ a b c d Template:Cite XHIP
- ↑ a b c d Template:Cite DR2
- ↑ a b c d Script error: No such module "citation/CS1".
- ↑ a b c d e Script error: No such module "citation/CS1".
- ↑ a b Script error: No such module "citation/CS1".
- ↑ a b Script error: No such module "citation/CS1".
- ↑ a b c Script error: No such module "citation/CS1".
- ↑ a b Script error: No such module "citation/CS1".
- ↑ Template:Cite simbad
- ↑ Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
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