NS Puppis

This article is about h1 Puppis. For other stars with this Bayer designation, see h Puppis. For H Puppis, see HD 53811.
NS Puppis
Location of NS Puppis (circled)
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]
Distance1,363+62
−65 ly
(418+19
−20 pc)[5]
Details
Mass8±0.9[6] M☉
Radius213±24[6] R☉
Luminosity9,772[6] L☉
Surface gravity (log g)0.73±0.02[6] cgs
Temperature3,961±125[6] K
Other designations
h1 Pup, CD−39°4084, HD 68553, HIP 40091, HR 3225, SAO 198908
Database references
SIMBADdata

NS Puppis (NS Pup) is an irregular variable star in the constellation Puppis. Its apparent magnitude varies between 4.4 and 4.5.

A light curve for NS Puppis, plotted from Hipparcos data[7]

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.

  1. ^ 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.
  2. ^ a b Cite error: The named reference gcvs was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference perkins was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference rv was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference b-j was invoked but never defined (see the help page).
  6. ^ a b c d e Cite error: The named reference kallinger was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference CDS was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference irwin was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference iriarte was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference cousins was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference ibvs was invoked but never defined (see the help page).