Global InformationNS Puppis information
  | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Puppis |
| Right ascension | 08h 11m 21.4934s[1] |
| Declination | −39° 37′ 06.7588″[1] |
| Apparent magnitude (V) | 4.40 - 4.50[2] |
| Characteristics | |
| Evolutionary stage | Supergiant |
| Spectral type | K4.5 Ib[3] |
| Variable type | Lc[2] |
| Astrometry | |
| Radial velocity (Rv) | 16.20[4] km/s |
| Proper motion (μ) | RA: −9.072 mas/yr[1] Dec.: 3.211 mas/yr[1] |
| Parallax (π) | 2.3831 ± 0.1188 mas[1] |
| Distance | 1,363+62 −65 ly (418+19 −20 pc)[5] |
| Details | |
| Mass | 8±0.9[6] M☉ |
| Radius | 213±24[6] R☉ |
| Luminosity | 9,772[6] L☉ |
| Surface gravity (log g) | 0.73±0.02[6] cgs |
| Temperature | 3,961±125[6] 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[8][9] until 1966.[10] It was given the variable star designation NS Puppis in 1975.[11]
h2 Puppis is another luminous K-type star with almost the same visual magnitude about a degree to the southeast.
- ^ a b c d Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
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