Delta Pavonis
Star in the constellation Pavo / From Wikipedia, the free encyclopedia
Delta Pavonis, Latinized from δ Pavonis, is a single[12] star in the southern constellation of Pavo. It has an apparent visual magnitude of 3.56,[11] making it a fourth-magnitude star that is visible to the naked eye from the southern hemisphere. Parallax measurements yield an estimated distance of 19.89 light-years (6.10 parsecs) from Earth.[1] This makes it one of the nearest bright stars to the Solar System. It is approaching the Sun with a radial velocity of −23.5 km/s, and is predicted to come as close as 17.8 light-years in around 49,200 years.[5]
Quick Facts Observation data Epoch J2000 Equinox J2000, Constellation ...
Observation data Epoch J2000 Equinox J2000 | |
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Constellation | Pavo |
Right ascension | 20h 08m 43.60887s[1] |
Declination | −66° 10′ 55.4428″[1] |
Apparent magnitude (V) | 3.56[2] |
Characteristics | |
Spectral type | G8 IV[3] |
U−B color index | 0.45[2] |
B−V color index | 0.76[2] |
Variable type | Suspected[4] |
Astrometry | |
Radial velocity (Rv) | −23.52±0.81[5] km/s |
Proper motion (μ) | RA: +1,211.761 mas/yr[1] Dec.: –1,130.237 mas/yr[1] |
Parallax (π) | 163.9544 ± 0.1222 mas[1] |
Distance | 19.89 ± 0.01 ly (6.099 ± 0.005 pc) |
Absolute magnitude (MV) | 4.62[6] |
Details[7] | |
Mass | 1.051±0.062[8] M☉ |
Radius | 1.197±0.016 R☉ |
Luminosity | 1.24±0.03 L☉ |
Surface gravity (log g) | 4.26±0.06 cgs |
Temperature | 5,571±48 K |
Metallicity [Fe/H] | 0.33±0.03 dex |
Rotation | 21.4±9.3 d[9] |
Rotational velocity (v sin i) | 0.32 km/s |
Age | 6.6–6.9[10] Gyr 9.3[6] Gyr |
Other designations | |
Database references | |
SIMBAD | data |
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