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Rho Puppis
Star in the southern constellation of Puppis / From Wikipedia, the free encyclopedia
Not to be confused with R Puppis.
"Tureis" redirects here. For the other star traditionally named Tureis, see Iota Carinae.
Rho Puppis (ρ Puppis, abbreviated Rho Pup, ρ Pup), formally named Tureis /ˈtjʊəreɪs/,[15] is a star in the southern constellation of Puppis. With an average apparent visual magnitude of 2.78,[2] it is the third-brightest member of this generally faint constellation. Based upon parallax measurements made during the Hipparcos mission, Rho Puppis is located at a distance of 63.5 light-years (19.5 parsecs) from the Sun.[1] It is the prototype of the ρ Puppis class of evolved Am stars.
Quick Facts Constellation, Right ascension ...
Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Puppis |
Right ascension | 08h 07m 32.64882s[1] |
Declination | −24° 18′ 15.5679″[1] |
Apparent magnitude (V) | 2.78[2] (2.68 – 2.87)[3] |
Characteristics | |
Spectral type | F5IIkF2IImF5II[4] |
U−B color index | +0.17[2] |
B−V color index | +0.40[2] |
Variable type | δ Sct[5] |
Astrometry | |
Radial velocity (Rv) | +46.1[6] km/s |
Proper motion (μ) | RA: –83.35[1] mas/yr Dec.: +46.23[1] mas/yr |
Parallax (π) | 51.33 ± 0.15 mas[1] |
Distance | 63.5 ± 0.2 ly (19.48 ± 0.06 pc) |
Absolute magnitude (MV) | 1.41[7] |
Details | |
Mass | 1.85[8] M☉ |
Radius | 3.41[9] R☉ |
Luminosity | 22[8] L☉ |
Surface gravity (log g) | 3.70[10] cgs |
Temperature | 6,920[11] K |
Metallicity [Fe/H] | 0.35[10] dex |
Rotational velocity (v sin i) | 15[12] km/s |
Age | 2[13] Gyr |
Other designations | |
Database references | |
SIMBAD | data |
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