HD 171301
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Lyra[1] |
| Right ascension | Template:RA[2] |
| Declination | Template:DEC[2] |
| Apparent magnitude (V) | 5.47[1] + 12.7[3] |
| Characteristics | |
| Spectral type | B8IV[4] or B8V[5] |
| U−B Template:Engvar | −0.463[1] |
| B−V Template:Engvar | Script error: No such module "val".[1] |
| Astrometry | |
| Radial velocity (Rv) | Script error: No such module "val".[6] km/s |
| Proper motion (μ) | RA: 13.229[2] mas/yr Dec.: 11.581[2] mas/yr |
| Parallax (π) | 9.3894±0.1103 mas[2] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | 0.27[1] |
| Details | |
| A | |
| Mass | Script error: No such module "val".[7] Template:Solar mass |
| Radius | Script error: No such module "val".[8] Template:Solar radius |
| Luminosity | Script error: No such module "val".[7] Template:Solar luminosity |
| Temperature | Script error: No such module "val".[7] K |
| Metallicity [Fe/H] | Script error: No such module "val".[9] dex |
| Rotational velocity (v sin i) | Script error: No such module "val".[5] km/s |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Template:Odlist[10] | |
| Database references | |
| SIMBAD | data |
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HD 171301 is a suspected binary star[11] system in the northern constellation of Lyra. It has not been well-studied.[5] The brighter member of the pair, designated component A,[3] has a blue-white hue and is visible to the naked eye with an apparent visual magnitude of 5.47.[1] The system is located at a distance of approximately 347 light years from the Sun based on parallax, but is drifting closer with a radial velocity of −10 km/s.[6]
The stellar classification of HD 171301 is B8IV,[4] matching a late B-type star that may be a subgiant that is evolving off the main sequence. HD 171301 appears to be a type of chemically peculiar mercury-manganese star.[5] It has an estimated mass three[7] times that of the Sun and 2.7 times the Sun's radius.[8] The star is spinning with a projected rotational velocity of 36 km/s.[5] It is radiating 124[7] times the luminosity of the Sun from its photosphere at an effective temperature of 11,695 K.[7]
Its companion, component B, is a 13th magnitude star of an unknown spectral type.[12] It was first reported by S. W. Burnham in 1891. As of 1998, it was located at an angular separation of Script error: No such module "val". from the brighter star along a position angle of 157°.[3]
References
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- ↑ a b c d e f Script error: No such module "Citation/CS1".
- ↑ a b Script error: No such module "Citation/CS1".
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- ↑ Template:Cite simbad
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- ↑ Template:Cite simbad
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