Observation data Epoch J2000.0 Equinox J2000.0 (ICRS)
Constellation
Puppis
Right ascension
06h 37m 45.67135s[1]
Declination
−43° 11′ 45.3602″[1]
Apparent magnitude (V)
3.173[2]
Characteristics
Spectral type
B8 III[3]
U−B color index
−0.397[2]
B−V color index
−0.113[2]
Astrometry
Radial velocity (Rv)
+30.9[4] km/s
Proper motion (μ)
RA: −0.44[1] mas/yr Dec.: −3.87[1] mas/yr
Parallax (π)
8.78 ± 0.26 mas[1]
Distance
370 ± 10 ly (114 ± 3 pc)
Absolute magnitude (MV)
−2.11[5]
Details
Radius
4.2[6]R☉
Luminosity
767[7]L☉
Luminosity (bolometric)
1,340[8]L☉
Temperature
12,120[9] K
Rotational velocity (v sin i)
225[10] km/s
Other designations
ν Pup, CPD−43° 946, HD 47670, HIP 31685, HR 2451, SAO 218071[11]
Database references
SIMBAD
data
Nu Puppis (ν Puppis) is a solitary,[12] blue-hued star in the southern constellation of Puppis. It is the fifth-brightest star in Puppis, with an apparent visual magnitude of 3.17.[2] Based upon an annual parallax shift of 8.78 mas as seen from Earth,[1] it is located about 370 light years from the Sun. The system made its closest approach about 3.6 million years ago when it underwent perihelion passage at a distance of roughly 27 light years.[13]
The star has a stellar classification of B8 III,[3] matching a B-type giant. Absorption lines in the spectrum are displaying central quasi-emission peaks, indicating this is a Be shell star with a circumstellar disk of heated gas that is being seen edge-on.[14] ν Puppis is a candidate variable star showing an amplitude of 0.0117 magnitude with a frequency of 0.15292 per day.[15] It is spinning rapidly with a projected rotational velocity of 225 km/s. This rotation is giving the star an oblate shape, with the equator being 31% larger than the poles.[10] It is radiating (after allowance for ultraviolet radiation) 1,340[8] times the Sun's luminosity from its photosphere at an effective temperature of 12,120 K.[9]
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NuPuppis (ν Puppis) is a solitary, blue-hued star in the southern constellation of Puppis. It is the fifth-brightest star in Puppis, with an apparent...
designations N Puppis and n Puppis are distinct and refer to three different stars in the constellation Puppis: N Puppis, (HD 65551, 228 G. Puppis), a B-type...
Detail for NSV 4456". www.aavso.org. Retrieved 2022-09-01. "VSX : Detail for nu. Pup". www.aavso.org. Retrieved 2022-09-03. "VSX : Detail for NSV 14656"....
Carina, Puppis and Vela. That was still insufficient for the number of stars, so he also used uppercase Latin letters such as N Velorum and Q Puppis. Lacaille...
1896 Edward C. Pickering found a new series of lines in the spectrum of ζ Puppis. This was believed to be the sharp series of hydrogen. In 1915 proof was...
aiming towards Orion, while the southern stars of Canis Major and a part of Puppis were viewed as a bow, named BAN in the Three Stars Each tablets, dating...
Majoris (UW CMa), two blue (O-type) supergiants in a binary system Zeta Puppis (Naos), a blue (O-type) supergiant, spectral type O4I(n)fp Alnilam (Epsilon...
P.; Brogt, E. (2016-08-21). "The conjectured S-type retrograde planet in nu Octantis: more evidence including four years of iodine-cell radial velocities"...
Herschel. Pictor is a small constellation bordered by Columba to the north, Puppis and Carina to the east, Caelum to the northwest, Dorado to the southwest...
(later identified as the electron ( ν e {\displaystyle \nu _{e}} ) and muon ( ν μ {\displaystyle \nu _{\mu }} ) neutrinos) rather than one. After receiving...
Khereb) and Markab (often spelled Markeb), a name shared with Alpha Pegasi, k Puppis and Kappa Velorum. In 2016, the IAU organized a Working Group on Star Names...
and 61 poor or rejected stars. Six stars, namely Iota Herculis, 53 Piscium, Nu Eridani, Gamma Pegasi, HD 13745 (V354 Persei) and 53 Arietis had been found...