PU Aurigae
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Auriga |
| Right ascension | Template:RA[2] |
| Declination | Template:DEC[2] |
| Apparent magnitude (V) | 5.55[3] |
| Characteristics | |
| Spectral type | M4 III[3] |
| B−V Template:Engvar | Script error: No such module "val".[3] |
| Variable type | Lb[4] |
| Astrometry | |
| Radial velocity (Rv) | Script error: No such module "val".[3] km/s |
| Proper motion (μ) | RA: +17.98[5] mas/yr Dec.: −30.61[5] mas/yr |
| Parallax (π) | 5.7462±0.2309 mas[2] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | −0.63[3] |
| Details | |
| Radius | 107[6] Template:Solar radius |
| Luminosity | 1,523[6] Template:Solar luminosity |
| Temperature | 3,482[6] K |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Template:Odlist[7] | |
| Database references | |
| SIMBAD | data |
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PU Aurigae is an irregular variable star located in the constellation Auriga. A red giant, it varies by 0.1 magnitude around magnitude 5.64,[8] so it is faintly visible to the naked eye. Located around 560 light-years distant, it shines with a luminosity approximately 1,523 times that of the Sun and has a surface temperature of 3,482 K.[6]
Although the star was first found to be variable by Joel Stebbins and Charles Morse Huffer in 1928,[9] it was not given its variable star designation until 1977.[10]
References
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