NV Puppis
 Location of NV Puppis (circled) |
|
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Puppis |
| Right ascension | 07h 18m 18.39335s |
| Declination | −36° 44′ 02.2329″ |
| Apparent magnitude (V) | 4.67 |
| Characteristics | |
| Spectral type | B2V+B3IVne |
| U−B color index | -0.79 |
| B−V color index | -0.10 |
| Variable type | γ Cas |
| Astrometry | |
| Radial velocity (Rv) | +18.60 km/s |
| Proper motion (μ) |
RA: -10.25 mas/yr Dec.: +5.82 mas/yr |
| Parallax (π) | 4.06 ± 0.18mas |
| Distance | 800 ± 40 ly (250 ± 10 pc) |
| Absolute magnitude (MV) | -2.31 |
| Details | |
| Mass | 10.1 M☉ |
| Luminosity | 12309 L☉ |
| Temperature | 22,000 K |
| Metallicity [Fe/H] | 0.00 dex |
| Rotational velocity (v sin i) | 254 km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
NV Puppis (NV Pup), also known as υ1 Puppis, is a class B2V (blue main-sequence) star in the constellation Puppis. Its apparent magnitude is 4.67 and it is approximately 800 light years away based on parallax.
It is a γ Cas variable, ranging from 4.78 to 4.58 magnitude. It is most likely an optical double with the nearby NW Puppis.
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 υ1 first appeared in several catalogues at the end of the 19th century.
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