Alpha Lyrae (Vega) is a delta Scuti type variable, fluctuating from -0.02 to 0.07 every four hours 33.6 minutes.
Beta Lyrae is an EB variable: 3.25 to 4.4 with a period of 12h22m.
Vega (Alpha Lyrae)
Sheliak (Beta Lyrae)
Beta Lyrae system
Delta Lyrae (possibly aka Delta Vega)
Mensa (Mensae) Microscopium (Micropscopii) Monoceros (Monocerotis) Musca (Muscae) ...
Vega = Alpha Lyrae &
Sheliak = Beta Lyrae
Sulafat = Gamma Lyrae
Delta-1 Lyr = Delta-1 Lyrae &
Delta-2 Lyr = Delta-2 Lyrae &
Eps Lyr = Epsilon Lyrae &
Zeta Lyr = Zeta Lyrae &
Aladfar = Eta Lyrae
R Lyr = R Lyrae = 13 Lyrae & ...
Vega (Alpha Lyrae) is a very bright star in the constellation Lyra. It is also known as the Harp Star and Fidis. Vega is the 5th brightest star in the sky and is pale blue. It is about 25 light years from Earth. Its spectral type is A0Va.
Vega (Alpha Lyrae) is a very bright star in the Lyra. It is also known as the Harp Star and Fidis. Vega is the and is pale blue. It is about 25 light years from Earth. Its spectral type is A0Va.
Also known as Alpha Lyrae, Vega is located within 25.3 light-years (ly) away from our Sun, Sol, as the brightest star in Constellation Lyra, the Lyre or Harp.
The brightest star in Lyra is [5350] alpha Lyrae, better known as Vega, the second brightest star in the northern hemisphere and fifth brightest star in the sky.
(v´g), brightest star in the constellation Lyra; Bayer designation Alpha Lyrae; 1992 position R.A. 18h36.7m, Dec. +38°47&minut;. A white main-sequence star of spectral class A0 V, its apparent magnitude is 0.
There are the common names - Rigel, Sirius, Betelgeuse, Vega, etc - and there are the "scientific" names - Beta Orionis, Alpha Canis Majoris, Alpha Orionis, Alpha Lyrae.
In about 5,500 years, the pole will have moved near the position of the star Alderamin (Alpha Cephei), and in 12,000 years, Vega (Alpha Lyrae) will become our north star.
Finding the South Celestial Pole ...
 See also: Vega, Star, Constellation, Sky, Second
  
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