HD 38283
HD 38283, or Bubup, is a star in the southern circumpolar constellation Mensa. With an magnitude of 6.70, its invisible to the naked eye but can be seen with binoculars. Bubup is located relatively close at a distance of 124 light-years but is recceding with a heliocentric radial velocity of 61.4 km/s.
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Mensa |
| Right ascension | 05h 37m 02.0168s |
| Declination | −73° 41′ 57.645″ |
| Apparent magnitude (V) | 6.70 |
| Characteristics | |
| Spectral type | F9.5 V |
| B−V color index | 0.540 |
| Astrometry | |
| Radial velocity (Rv) | 61.4 ± 0.2 km/s |
| Proper motion (μ) | RA: 138.785 mas/yr Dec.: −108.526 mas/yr |
| Parallax (π) | 26.2443 ± 0.0250 mas |
| Distance | 124.3 ± 0.1 ly (38.10 ± 0.04 pc) |
| Absolute magnitude (MV) | 3.82 |
| Details | |
| Mass | 1.37 ± 0.07 M☉ |
| Radius | 1.49 ± 0.0 R☉ |
| Luminosity | 2.35 L☉ |
| Surface gravity (log g) | 4.23 ± 0.02 cgs |
| Temperature | 5,981 ± 12 K |
| Metallicity [Fe/H] | −0.18 dex |
| Rotational velocity (v sin i) | 3.8 km/s |
| Age | 7.43 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
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