Vega

Location of Vega in the constellation Lyra
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Lyra
Pronunciation /ˈviːɡə/ or
/ˈveɪɡə/
Right ascension 18
Declination +38° 47′ 01.2802″
Apparent magnitude (V) 0.03
Characteristics
Evolutionary stage Main Sequence
Spectral type A0V
U−B color index −0.01
B−V color index +0.00
Variable type Suspected Delta Scuti
Astrometry
Radial velocity (Rv) 13.9 ± 0.9 km/s
Proper motion (μ) RA: 200.94 mas/yr
Parallax (π) 130.23 ± 0.36mas
Distance 25.04 ± 0.07 ly
(7.68 ± 0.02 pc)
Absolute magnitude (MV) 0.58
Details
Mass 2.135 ± 0.074M
Radius 2.26 × 2.78R
Luminosity 37 ± 3L
Surface gravity (log g) 4.1 & 0.1
Temperature 9602 ± 180K
Metallicity [Fe/H] −0.5dex
Rotation 12.5 h
Rotational velocity (v sin i) 274 km/s
Age 455 ± 13Myr
Other designations
Wega, 织女一

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Vega, which is released under the Creative Commons Attribution-Share-Alike License 3.0