8 Ursae Minoris
8 Ursae Minoris is a 7th-magnitude red clump star in Ursa Minor. The star is unusually rich in lithium, with an abundance of A = 2.0±0.2 dex.
| Observation data Epoch J2000 Equinox | |
|---|---|
| Constellation | Ursa Minor |
| Right ascension | 14h 56m 48.35230s |
| Declination | +74° 54′ 03.3212″ |
| Apparent magnitude (V) | 6.835 |
| Characteristics | |
| Evolutionary stage | Red clump |
| Spectral type | G8III |
| Astrometry | |
| Radial velocity (Rv) | −9.55 km/s |
| Proper motion (μ) | RA: +13.139 mas/yr Dec.: +3.578 mas/yr |
| Parallax (π) | 6.1278 ± 0.0142 mas |
| Distance | 532 ± 1 ly (163.2 ± 0.4 pc) |
| Absolute magnitude (MV) | +0.82 |
| Details | |
| Mass | 1.51±0.06 M☉ |
| Radius | 10.73±0.14 R☉ |
| Luminosity | 52.9±5.9 L☉ |
| Surface gravity (log g) | 2.53 cgs |
| Temperature | 4,847±100 K |
| Metallicity [Fe/H] | −0.03±0.02 dex |
| Rotation | 100–200 d |
| Age | 377 Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
In the 2019 NameExoWorlds competition, the star was assigned to contestants in South Korea. It was named Baekdu after Paektu Mountain, the tallest mountain in North Korea.
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