Rho Puppis
Rho Puppis (ρ Puppis, abbreviated Rho Pup, ρ Pup), formally named Tureis /ˈtjʊəreɪs/, is a star in the southern constellation of Puppis. With an average apparent visual magnitude of 2.78, 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. It is the prototype of the ρ Puppis class of evolved Am stars.
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Puppis |
| Right ascension | 08h 07m 32.64882s |
| Declination | −24° 18′ 15.5679″ |
| Apparent magnitude (V) | 2.78 (2.68 – 2.87) |
| Characteristics | |
| Spectral type | F5IIkF2IImF5II |
| U−B color index | +0.17 |
| B−V color index | +0.40 |
| Variable type | δ Sct |
| Astrometry | |
| Radial velocity (Rv) | +46.1 km/s |
| Proper motion (μ) | RA: –83.35 mas/yr Dec.: +46.23 mas/yr |
| Parallax (π) | 51.33 ± 0.15 mas |
| Distance | 63.5 ± 0.2 ly (19.48 ± 0.06 pc) |
| Absolute magnitude (MV) | 1.41 |
| Details | |
| Mass | 1.85 M☉ |
| Radius | 3.41 R☉ |
| Luminosity | 22 L☉ |
| Surface gravity (log g) | 3.70 cgs |
| Temperature | 6,920 K |
| Metallicity [Fe/H] | 0.35 dex |
| Rotational velocity (v sin i) | 15 km/s |
| Age | 2 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.