NS Puppis
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Puppis |
| Right ascension | 08h 11m 21.4934s |
| Declination | −39° 37′ 06.7588″ |
| Apparent magnitude (V) | 4.40–4.50 |
| Characteristics | |
| Evolutionary stage | Supergiant |
| Spectral type | K4.5 Ib |
| Variable type | Lc |
| Astrometry | |
| Radial velocity (Rv) | 16.20 km/s |
| Proper motion (μ) | RA: −9.072 mas/yr Dec.: 3.211 mas/yr |
| Parallax (π) | 2.3831±0.1188 mas |
| Distance | 1,363+62 −65 ly (418+19 −20 pc) |
| Details | |
| Mass | 8±0.9 M☉ |
| Radius | 213±24 R☉ |
| Luminosity | 9,772 L☉ |
| Surface gravity (log g) | 0.73±0.02 cgs |
| Temperature | 3,961±125 K |
| Other designations | |
| h1 Pup, CD−39°4084, HD 68553, HIP 40091, HR 3225, SAO 198908 | |
| Database references | |
| SIMBAD | data |
NS Puppis (NS Pup) is an irregular variable star in the constellation Puppis. Its apparent magnitude varies between 4.4 and 4.5.
NS Puppis is a naked eye star, given the h1 and the Bright Star Catalogue number 3225. It was considered to be a stable star until 1966. It was given the variable star designation NS Puppis in 1975.
h2 Puppis is another luminous K-type star with almost the same visual magnitude about a degree to the southeast.