HD 128198
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Boötes[1] |
| Right ascension | Template:RA[2] |
| Declination | Template:DEC[2] |
| Apparent magnitude (V) | 6.1657[3] |
| Characteristics | |
| Evolutionary stage | red giant branch[4][2] |
| Spectral type | K4III[5] |
| U−B Template:Engvar | +1.59[6] |
| B−V Template:Engvar | +1.38[6] |
| Astrometry | |
| Radial velocity (Rv) | Script error: No such module "val".[3] km/s |
| Proper motion (μ) | RA: −24.973[2] mas/yr Dec.: −46.654[2] mas/yr |
| Parallax (π) | 5.9435±0.0293 mas[2] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | +0.07[1] |
| Details | |
| Mass | 2.6[2] Template:Solar mass |
| Radius | 24[2] Template:Solar radius |
| Luminosity | 214[2] Template:Solar luminosity |
| Surface gravity (log g) | 2.01[2] cgs |
| Temperature | 4,420[2] K |
| Metallicity [Fe/H] | Script error: No such module "val". [7] dex |
| Age | 558[2] Myr |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| BD+37°2551, HD 128198, HIP 71277, HR 5448, SAO 64227[8] | |
| Database references | |
| SIMBAD | data |
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HD 128198 is a giant star in the northern constellation of Boötes, about 549 light years away.
References
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- ↑ a b Script error: No such module "Citation/CS1".
- ↑ a b c d e f g h i j k l Template:Cite Gaia DR3
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- ↑ a b Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ Template:Cite simbad
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