HD 16004
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Andromeda[1] |
| Right ascension | Template:RA[2] |
| Declination | Template:DEC[2] |
| Apparent magnitude (V) | 6.26[3] |
| Characteristics | |
| Spectral type | B9.5 III HgMn[3] |
| U−B Template:Engvar | −0.33[3] |
| B−V Template:Engvar | −0.30[3] |
| Astrometry | |
| Radial velocity (Rv) | Script error: No such module "val".[4] km/s |
| Proper motion (μ) | RA: +16.659[2] mas/yr Dec.: −34.296[2] mas/yr |
| Parallax (π) | 4.9384±0.1650 mas[2] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | −0.36[5] |
| Details | |
| Mass | 2.88[6] Template:Solar mass |
| Radius | 3.274[7] Template:Solar radius |
| Luminosity | 158[7] Template:Solar luminosity |
| Surface gravity (log g) | 3.8[6] cgs |
| Temperature | 10,809[6] K |
| Metallicity [Fe/H] | Script error: No such module "val".[6] dex |
| Rotational velocity (v sin i) | 30[8] km/s |
| Age | 162[9] Myr |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Template:Odlist[10] | |
| Database references | |
| SIMBAD | data |
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HD 16004 is blue-white hued star in the northern constellation of Andromeda. It is a challenge to see with the naked eye even under good viewing conditions, having an apparent visual magnitude of 6.26.[3] Located approximately Script error: No such module "convert". away from the Sun based on parallax, it is drifting closer with a heliocentric radial velocity of −7 km/s.[4]
This is a chemically peculiar mercury-manganese star[11] with a stellar classification of B9.5 III HgMn.[3] It is an estimated 162 million years old and is spinning with a projected rotational velocity of Script error: No such module "val"..[8] The star is radiating 158 times the luminosity of the Sun from its photosphere at an effective temperature of Script error: No such module "val"..
References
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- ↑ Template:Cite constellation
- ↑ a b c d e Template:Cite DR2
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- ↑ Template:Cite simbad
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