ZETA LYR (Zeta Lyrae). Lyra, the Harp or Lyre, is dominated by its luminary Vega, and so much by the "double-double" (Epsilon) and the strange eclipser Sheliak (Beta) that nobody pays much attention to another fascinating multiple, Zeta Lyrae, ...
00 7056 zeta LYR 18 44 46.3 +37 36 18 Am 4.36 0.19 7057 zeta LYR 18 44 48.1 +37 35 40 F0IVv 5.73 0.28 7298 eta LYR 19 13 45.4 +39 08 46 B2.5IV 4.39 -0.15 7314 theta LYR 19 16 22.0 +38 08 01 K0II 4.36 1.26 7262 iota LYR 19 07 18.0 +36 06 01 B6IV 5.
Epsilon2C-Epsilon2D is about twice as fast, with a period of 585 years: 5.2, 5.5; PA 83.5º, separation 2.3". Zeta Lyrae is another relatively fixed multiple. The brightest component is D: AD 4.3, 5.9; 150º, 43.7".
An easy object with binoculars or small telescopes is Zeta Lyr consisting of a 4th and a 6th mag star.
It seems that the Arabs visualized Vega and its two nearby stars Epsilon and Zeta Lyrae as an eagle with folded wings, swooping down in its prey, ...
 See also: Star, Vega, Epsilon, Magnitude, Sky
  
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