15 Orionis facts for kids
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| Observation data Epoch J2000 Equinox J2000 |
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|---|---|
| Constellation | Orion |
| Right ascension | 05h 09m 41.95770s |
| Declination | 15° 35′ 50.0410″ |
| Apparent magnitude (V) | 4.82 |
| Characteristics | |
| Spectral type | F2IV |
| U−B color index | +0.19 |
| B−V color index | +0.32 |
| Astrometry | |
| Radial velocity (Rv) | +28.79 km/s |
| Proper motion (μ) | RA: -2.71 mas/yr Dec.: -15.75 mas/yr |
| Parallax (π) | 6.06 ± 1.97 mas |
| Distance | approx. 500 ly (approx. 170 pc) |
| Absolute magnitude (MV) | -0.04 |
| Details | |
| Mass | 3.42 M☉ |
| Radius | 5.9 R☉ |
| Luminosity | 300 L☉ |
| Surface gravity (log g) | 3.75 cgs |
| Temperature | 7,161 K |
| Metallicity [Fe/H] | +0.21 dex |
| Rotational velocity (v sin i) | 60 km/s |
| Other designations | |
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BD+15°752, CCDM J05097+1536AB, GC 6306, HIP 24010, HR 1676, HD 33276, SAO 94359, WDS J05097+1536AB
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| Database references | |
| SIMBAD | data |
15 Orionis is a class F2IV (early F-type subgiant) star in the constellation Orion. Its apparent magnitude is 4.82 and it is approximately 540 light years away based on parallax. It is the southern pole star of Uranus.
It has one suspected companion, B, at a separation of 0.3".
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15 Orionis Facts for Kids. Kiddle Encyclopedia.