QW Puppis
F3V star in the constellation Puppis
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QW Puppis (QW Pup) is a class F3V (yellow-white dwarf) star in the constellation Puppis. Its apparent magnitude is 4.49 and it is approximately 69.5 light years away based on parallax.
  | |
| Observation data Epoch J2000 Equinox ICRS | |
|---|---|
| Constellation | Puppis |
| Right ascension | 07h 12m 33.62514s[1] |
| Declination | −46° 45′ 33.4966″[1] |
| Apparent magnitude (V) | 4.49[2] |
| Characteristics | |
| Spectral type | F3V Fe-1.0[3] |
| U−B color index | −0.01[2] |
| B−V color index | +0.32[2] |
| Variable type | γ Dor[4] |
| Astrometry | |
| Radial velocity (Rv) | +0.10[5] km/s |
| Proper motion (μ) | RA: −135.806[1] mas/yr Dec.: +107.433[1] mas/yr |
| Parallax (π) | 46.9031±0.1185 mas[1] |
| Distance | 69.5 ± 0.2 ly (21.32 ± 0.05 pc) |
| Absolute magnitude (MV) | 2.84[6] |
| Details | |
| Mass | 1.52[7] M☉ |
| Radius | 1.735[1] R☉ |
| Luminosity | 6.4[7] L☉ |
| Surface gravity (log g) | 4.17[8] cgs |
| Temperature | 6,934[7] K |
| Metallicity [Fe/H] | −0.24[6] dex |
| Rotational velocity (v sin i) | 51[7] km/s |
| Age | 1.6[1] Gyr |
| Other designations | |
| I Puppis, QW Pup, CD−46°2977, FK5 275, GC 9569, GJ 268.1, GJ 9225, GSC 08119-02547, HIP 34834, HR 2740, HD 55892, SAO 218537 | |
| Database references | |
| SIMBAD | data |
It is a Gamma Doradus variable, ranging from 4.5 to 4.47 magnitude with a period of 0.96 days.[4] With a mass of 1.5 M☉ and an age of 1.6 billion years, it is about halfway through its main sequence lifetime.[7]