HD 210434
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquarius[1] |
| Right ascension | Template:RA[2] |
| Declination | Template:DEC[2] |
| Apparent magnitude (V) | 5.979[3] |
| Characteristics | |
| Evolutionary stage | red giant branch[2] |
| Spectral type | G8/K0III[4] |
| U−B Template:Engvar | 0.84[5] |
| B−V Template:Engvar | 0.981[6] |
| Astrometry | |
| Radial velocity (Rv) | −18.1[7] km/s |
| Proper motion (μ) | RA: +70.600[2] mas/yr Dec.: +3.340[2] mas/yr |
| Parallax (π) | 10.3957±0.0439 mas[2] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | 1.30[6] |
| Details | |
| Mass | 2.5[8] Template:Solar mass |
| Radius | 8.5[9] Template:Solar radius |
| Luminosity | 40[8] Template:Solar luminosity |
| Surface gravity (log g) | 2.91[2] cgs |
| Temperature | 4,910[8] K |
| Metallicity [Fe/H] | Script error: No such module "val".[6][3] dex |
| Rotational velocity (v sin i) | 3.3[6] km/s |
| Age | 557[2] Myr |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| BD−04°5625, HD 210434, HIP 109466, HR 8453, SAO 145916 | |
| Database references | |
| SIMBAD | data |
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HD 210434 is a giant star in the equatorial constellation of Aquarius. According to the Bortle scale, an apparent magnitude of six means this star is faintly visible to the naked eye from dark rural skies. It is an estimated 557 million years old with 2.4 times the mass of the Sun.
References
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