Sheliak
TRIANGULUM
29 - The Formation of our Solar System and Long Period Comets ...
VEGA (Alpha Lyr)
Sheliak (Beta Lyr)
Sulafat (Gamma Lyr)
Double Double (Epsilon 1 Lyr)
Double Double (Epsilon 1 Lyr)
Double Double (Epsilon 2 Lyr)
Double Double (Epsilon 2 Lyr)
Aladfar (Eta Lyr)
Alathfar (Mu Lyr) ...
Vega (Alpha Lyrae)
Sheliak (Beta Lyrae)
Beta Lyrae system
Delta Lyrae (possibly aka Delta Vega)
Mensa (Mensae) Microscopium (Micropscopii) Monoceros (Monocerotis) Musca (Muscae) ...
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, ...
*β Lyr (Sheliak): a group of eclipsing binaries is named after this variable star (3.45m, spectral class B8 II), the Beta-Lyrae-stars.
*γ Lyr (Sulafat): the main star of this multiple star system is of magnitude 3.24m and spectral class B9 III ...
Beta Lyrae is called Sheliak, a name that comes from the Arabic for ‘harp', in reference to the constellation as a whole. Beta Lyrae is a celebrated variable star.
[5352] beta Lyrae or Sheliak ("harp") is a binary star composed of two B-type stars that are so close together that it is impossible to resolve them with an optical telescope.
β (beta) Lyrae variables are extremely close binaries, named after the star β Lyrae or Sheliak.
Named stars in Lyra (Greek alphabet)
Aladfar (η Lyr), Alathfar (μ Lyr), Sheliak (β Lyr), Sulafat (γ Lyr), Vega (α Lyr).
Constellations adjoining Lyra: Cygnus, Draco, Hercules, Vulpecula.
The prototype of the β Lyrae type variable stars is β Lyrae, also called Sheliak. Its variability was discovered in 1784 by John Goodricke.
Beta Lyrae, sometimes known as "Sheliak" (Tortoise), is a prototype of a variable star in which a close companion is transferring matter to its gigantic primary. In Beta Lyrae's case, the transference is occurring very rapidly.
Named stars: Alpha Lyr (Wega), Beta Lyr (Sheliak)
Info:
Mensa (Table Mountain) ...
 See also: Star, Second, Nebula, Sky, Planet
  
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