QY Puppis
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Puppis |
| Right ascension | 07h 47m 38.5262s |
| Declination | −15° 59′ 26.480″ |
| Apparent magnitude (V) | 6.24 - 6.71 |
| Characteristics | |
| Spectral type | K1Ia-Iab |
| Apparent magnitude (J) | 3.746 |
| Apparent magnitude (H) | 2.958 |
| Apparent magnitude (K) | 2.702 |
| Variable type | SRd |
| Astrometry | |
| Proper motion (μ) | RA: −2.017 mas/yr Dec.: −3.596 mas/yr |
| Parallax (π) | 0.3197±0.0330 mas |
| Distance | 10,200 ly (3,100 pc) |
| Details | |
| Mass | 6.2±0.4 M☉ |
| Radius | 515 R☉ |
| Luminosity | 62,500–63,700 L☉ |
| Surface gravity (log g) | 0.16 cgs |
| Temperature | 4,251±46 K |
| Metallicity [Fe/H] | 0.05 dex |
| Age | 63.6±21.7 Myr |
| Other designations | |
| BD−15°2049, HD 63302, HIP 38031, HR 3026, WDS J07478-1601 | |
| Database references | |
| SIMBAD | data |
QY Puppis is a K-type supergiant star in the constellation of Puppis. With a radius of 515 R☉, it is on the smaller end of the largest known stars. A variable star, its apparent magnitude varies from 6.24 to 6.71, making it very faintly visible to the naked eye under ideal observing conditions, when it is at its brightest.