HD 69142
Star in the constellation Puppis
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HD 69142 is a class K1II-III[3] (orange bright giant) star in the constellation Puppis. Its apparent magnitude is 4.44[2] and it is approximately 298 light years away based on parallax.[1]
 | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Puppis |
| Right ascension | 08h 14m 02.92219s[1] |
| Declination | −40° 20′ 52.4031″[1] |
| Apparent magnitude (V) | 4.44[2] |
| Characteristics | |
| Spectral type | K1II-III[3] |
| U−B color index | +1.09[2] |
| B−V color index | +1.17[2] |
| Astrometry | |
| Radial velocity (Rv) | +13.50[4] km/s |
| Proper motion (μ) | RA: +45.51[1] mas/yr Dec.: −65.60[1] mas/yr |
| Parallax (π) | 10.93±0.48 mas[1] |
| Distance | 300 ± 10 ly (91 ± 4 pc) |
| Absolute magnitude (MV) | −0.38[5] |
| Orbit[6] | |
| Primary | h2 Puppis Aa |
| Name | h2 Puppis Ab |
| Period (P) | 930 days |
| Semi-major axis (a) | 10.66 mas |
| Eccentricity (e) | 0.4 |
| Inclination (i) | 135.2° |
| Longitude of the node (Ω) | 181.7° |
| Periastron epoch (T) | 2418060 |
| Argument of periastron (ω) (secondary) | 140° |
| Details | |
| Mass | 1.79[7] M☉ |
| Radius | 23[7] R☉ |
| Luminosity | 207[5] L☉ |
| Surface gravity (log g) | 1.97[7] cgs |
| Temperature | 4,467[7] K |
| Rotational velocity (v sin i) | < 1.0[8] km/s |
| Other designations | |
| h2 Puppis, CD−39°4128, CPD−39°2219, CCDM J08140-4021A, GC 11215, GSC 07664-02482, HIP 40326, HR 3243, HD 69142, SAO 219635, WDS J08140-4021A | |
| Database references | |
| SIMBAD | data |
It is a multiple star; the primary is a spectroscopic binary with a 2.55 year orbit with eccentricity 0.4,[9] and there is a more distant companion B at 59.4" and 9.5 magnitude.[10]