NS Puppis
Star in the constellation Puppis / From Wikipedia, the free encyclopedia
This article is about h1 Puppis. For other stars with this Bayer designation, see h Puppis. For H Puppis, see HD 53811.
NS Puppis (NS Pup) is an irregular variable star in the constellation Puppis. Its apparent magnitude varies between 4.4 and 4.5.
Quick Facts Observation data Epoch J2000 Equinox J2000, Constellation ...
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Puppis |
Right ascension | 08h 11m 21.4923s[1] |
Declination | −39° 37′ 06.7666″[1] |
Apparent magnitude (V) | 4.40 - 4.50[2] |
Characteristics | |
Spectral type | K4.5 Ib[3] |
Variable type | Lc[2] |
Astrometry | |
Radial velocity (Rv) | 16.20[4] km/s |
Proper motion (μ) | RA: −8.206[1] mas/yr Dec.: 3.694[1] mas/yr |
Parallax (π) | 3.12 ± 0.34 mas[1] |
Distance | approx. 1,000 ly (approx. 320 pc) |
Details | |
Mass | 9.7[5] M☉ |
Radius | 134[6] R☉ |
Luminosity | 2,290.87 - 2,488.86[6] L☉ |
Temperature | 3,898[6] K |
Age | 25.1[5] Myr |
Other designations | |
Database references | |
SIMBAD | data |
Close
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.