K Puppis
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Puppis |
| k1 Pup | |
| Right ascension | 07h 38m 49.380s |
| Declination | −26° 48′ 06.49″ |
| Apparent magnitude (V) | +4.50 |
| k2 Pup | |
| Right ascension | 07h 38m 49.869s |
| Declination | −26° 48′ 13.80″ |
| Apparent magnitude (V) | +4.429 |
| Characteristics | |
| k1 | |
| Spectral type | B6 V |
| k2 | |
| Spectral type | B5 IV |
| Variable type | SX Ari |
| Astrometry | |
| Parallax (π) | 9.41±0.80 mas |
| Distance | 350 ± 30 ly (106 ± 9 pc) |
| k1 | |
| Absolute magnitude (MV) | −1.19 |
| k2 | |
| Absolute magnitude (MV) | −0.94 |
| Details | |
| k1 | |
| Mass | 4.3±0.3 M☉ |
| Radius | 3.7+1.2 −0.6 R☉ |
| Luminosity | 490 L☉ |
| Surface gravity (log g) | 4.24±0.15 cgs |
| Temperature | 13,600±1,200 K |
| Rotational velocity (v sin i) | 114±5 km/s |
| k2 | |
| Mass | 6.0±0.3 M☉ |
| Radius | 3.0+0.7 −0.3 R☉ |
| Luminosity | 1,202 L☉ |
| Surface gravity (log g) | 4.10±0.15 cgs |
| Temperature | 18,500±500 K |
| Rotational velocity (v sin i) | 61±5 km/s |
| Other designations | |
| HIP 37229, CD−26 4707, NSV 3673 | |
| k1: HR 2948, HD 61555, SAO 174198 | |
| k2: HR 2949, HD 61556, SAO 174199 | |
| Database references | |
| SIMBAD | k Puppis |
| k1 | |
| k2 | |
k Puppis (k Pup, k Puppis) is a Bayer designation given to an optical double star in the constellation Puppis, the two components being k1 Puppis and k2 Puppis.