NW Puppis
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Puppis |
| Right ascension | 07h 18m 38.18538s |
| Declination | −36° 44′ 33.8512″ |
| Apparent magnitude (V) | 5.11 |
| Characteristics | |
| Spectral type | B3 Vne |
| Variable type | β Cep |
| Astrometry | |
| Radial velocity (Rv) | +18.00 ± 10 km/s |
| Proper motion (μ) |
RA: −10.12 ± 0.19 mas/yr Dec.: 5.33 ±0.22 mas/yr |
| Parallax (π) | 4.31 ± 0.23mas |
| Distance | 760 ± 40 ly (230 ± 10 pc) |
| Details | |
| Luminosity | 1108 L☉ |
| Temperature | 15000 K |
| Other designations | |
| Database references | |
| SIMBAD | data |
NW Puppis (NW Pup), also known as υ2 Puppis, is a star in the constellation Puppis. Located around 760 light-years distant, it shines with a luminosity approximately 1108 times that of the Sun and has a surface temperature of 15000 K.Anamarija Stankov ruled this star out as a Beta Cephei variable.
Neither component of this double is given a letter in Lacaille's catalogue or the British Association star catalogue.Gould gave them the designations (latin letter) v1 and v2 Puppis, but these are rarely used. Lacaille applied the Greek letter υ to the star now called υ Carinae. The designation υ2 first appeared in several catalogues at the end of the 19th century.
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