HR 8938
 Location of HR 8938 (circled) |
|
| Observation data Epoch J2000.0 Equinox J2000.0 |
|
|---|---|
| Constellation | Cepheus |
| Right ascension | 23h 27m 00.85s |
| Declination | 87° 18′ 27.02″ |
| Apparent magnitude (V) | 5.56 |
| Characteristics | |
| Spectral type | A7IV |
| Astrometry | |
| Radial velocity (Rv) | -10.9 km/s |
| Parallax (π) | 9.79 ± 0.35mas |
| Distance | 330 ± 10 ly (102 ± 4 pc) |
| Absolute magnitude (MV) | 0.61 |
| Details | |
| Mass | 2.25? M☉ |
| Radius | 3.5 R☉ |
| Luminosity | 44 L☉ |
| Temperature | 8000 K |
| Age | ~900 million years |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 221525 is a subgiant star near the north celestial pole in the constellation Cepheus. At an apparent magnitude of 5.6, it can be seen with the naked eye under dark skies. It is about 30 times fainter than the star Polaris.
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