HD 5319
HD 5319 is an 8th magnitude star approximately 319 light years away in the constellation Cetus. It is a subgiant star of spectral type K3, having run out of hydrogen in its core. When it was main-sequence, the spectral type was early F or late A.
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Cetus |
| Right ascension | 00h 77m 01.3977s |
| Declination | +00° 47′ 22.4012″ |
| Apparent magnitude (V) | 8.05 |
| Characteristics | |
| Spectral type | K3IV |
| Astrometry | |
| Proper motion (μ) | RA: −5.398±0.105 mas/yr Dec.: −49.564±0.063 mas/yr |
| Parallax (π) | 8.2083 ± 0.0476 mas |
| Distance | 397 ± 2 ly (121.8 ± 0.7 pc) |
| Details | |
| Mass | 1.40 ± 0.14 M☉ |
| Radius | 3.97 ± 0.43 R☉ |
| Luminosity | 9 L☉ |
| Metallicity [Fe/H] | +0.14 dex |
| Age | 3.30 ± 1.11 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
The absolute magnitude (apparent magnitude at 10 parsecs) is 3.05, which would translate to easy naked eye visibility, but its distance is ten times greater, so its apparent magnitude is 8.05 (100 times fainter than its absolute magnitude), it is not visible to the naked eye and binoculars are needed.
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