Theta Pavonis
θ Pavonis, Latinized as Theta Pavonis, is a single star in the southern constellation of Pavo. It is just visible to the naked eye as a dim, white-hued star, having an apparent visual magnitude of 5.71. This star is located 213 light years from the Sun based on parallax.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Pavo |
| Right ascension | 18h 48m 37.90451s |
| Declination | −65° 04′ 39.6498″ |
| Apparent magnitude (V) | 5.71 |
| Characteristics | |
| Evolutionary stage | main sequence |
| Spectral type | A8V |
| B−V color index | +0.268±0.004 |
| Astrometry | |
| Radial velocity (Rv) | −0.7±4.3 km/s |
| Proper motion (μ) | RA: −38.266 mas/yr Dec.: −78.246 mas/yr |
| Parallax (π) | 15.3252 ± 0.0741 mas |
| Distance | 213 ± 1 ly (65.3 ± 0.3 pc) |
| Absolute magnitude (MV) | 1.56 |
| Details | |
| Mass | 1.56 M☉ |
| Radius | 2.51+0.09 −0.13 R☉ |
| Luminosity | 17.4±0.1 L☉ |
| Surface gravity (log g) | 3.94±0.14 cgs |
| Temperature | 7,453+199 −136 K |
| Metallicity [Fe/H] | +0.01 dex |
| Rotational velocity (v sin i) | 245 km/s |
| Age | 425 Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
This object is an A-type main-sequence star with a stellar classification of A8V, which indicates it is generating energy through hydrogen fusion at its core. It displays little to no detectable X-ray emission, suggesting a weak corona and, at best, a shallow convection zone. Theta Pavonis is 425 million years old and is spinning rapidly with a projected rotational velocity of 245 km/s. The star has 1.56 times the mass of the Sun and 2.51 times the Sun's radius. It is radiating 17.4 times the luminosity of the Sun from its photosphere at an effective temperature of 7,453 K.
It lies six arc-minutes north of the barred lenticular galaxy NGC 6684.