54 Aurigae
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Auriga |
| A | |
| Right ascension | Template:RA[2] |
| Declination | Template:DEC[2] |
| Apparent magnitude (V) | 6.22[3] |
| B | |
| Right ascension | Template:RA[2] |
| Declination | Template:DEC[2] |
| Apparent magnitude (V) | 7.82[3] |
| Characteristics | |
| Spectral type | B7 III[4] |
| B−V Template:Engvar | Script error: No such module "val".[5] |
| Variable type | Algol[6] |
| Astrometry | |
| A | |
| Radial velocity (Rv) | Script error: No such module "val".[5] km/s |
| Proper motion (μ) | RA: −5.461[2] mas/yr Dec.: −10.523[2] mas/yr |
| Parallax (π) | 3.5961±0.0952 mas[2] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Details | |
| 54 Aur A | |
| Luminosity | 315.49[7] Template:Solar luminosity |
| Temperature | 11,083[7] K |
| Rotational velocity (v sin i) | 65[8] km/s |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Template:Odlist[9] | |
| Database references | |
| SIMBAD | data |
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54 Aurigae is a multiple star system located around Script error: No such module "convert". away from the Sun in the northern constellation of Auriga. It is visible to the naked eye as a dim, blue-white hued star with a combined apparent visual magnitude of 6.02.[5] The system is moving further from the Sun with a heliocentric radial velocity of around +19 km/s.[5]
54 Aurigae is resolved into two visible components, of magnitudes 6.22 and 7.82, separated by Script error: No such module "val".. The double was discovered in 1843 when the separation was only Script error: No such module "val"..[10] There is no separate measure of the parallax of the secondary, but it shares a common proper motion with the brighter star[11] and they are assumed to form a binary.[10] The spectral class B7 III is assigned to the brighter of the pair, indicating a hot giant star, although it has also been given as B7/8 III/V, suggesting it may be a main sequence star.[12] Most sources can't give a separate spectral classification for the fainter star, but it has been listed as DA1/K4V, indicating it is either a white dwarf or red dwarf.[13]
The brighter component of the visible pair is an eclipsing binary with a period of 1.8797 days, and a primary eclipse depth of 0.03 magnitudes.[14] It is radiating 315 times the luminosity of the Sun from its photosphere at an effective temperature of Script error: No such module "convert".,[7] and is spinning with a projected rotational velocity of Script error: No such module "convert"..[8]
References
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- ↑ a b c d e f g Template:Cite Gaia DR3
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- ↑ Template:Cite simbad
- ↑ a b Script error: No such module "citation/CS1".
- ↑ Template:Cite Gaia DR2
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