spring constellations

autumn constellations

not visible constellations

summer constellations

winter constellations

constellations of the zodiac

By agreement the names of the stars of a constellation are prefixed by a Greek letter followed by the first 3 letters of the constellation, the example : α  Ori, β Ori, ... (Greek letters : α β γ δ ε ζ η θ ι κ λ μ ν ξ ο π ρ ς σ τ υ φ χ ψ ω).

for its 6th work, killed the birds of the lake Stymphale. The constellation is moreover close to the Swan and to the Eagle. The lyre was the musical instrument of Orpheus. The constellation recognizes in its shape in rhombus and Vega its most brilliant star, is in the point of a young " V " which reminds its name. Under a wider angle, the constellation is on the adaptation which leaves the small She-bear, by way of the head of the Dragon, to come to get Vega. Vega is one of the summits of the big summer, easily locatable triangle.
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The Swan is big and brilliant one constellation, sometimes called the Cross of the North in opposition to the Cross of the South, because its stars are mainly arranged according to a big cross. Crossed by the Milky Way, it contains several brilliant stars and numerous heavenly objects. In the constellation of the Swan, the star Deneb is on the tail of the Swan, which its spread wings flies away southward, along the Milky Way. The stars of the Swan possess the shape of a big cross and Deneb, the star placed at the top of this cross, is the most brilliant of the constellation.

According to the Greek mythology, one of the legends tells that the god Zeus had disguised as swan to seduce Leda, whose Gemini and Hélène of Troy he had child. He could also represent Orpheus, transformed in swan after his murder and placed in heavens next to his lyre. The star Deneb (α Cyg) marks one of the angles of the summer, visible triangle from the night fallen (mag 1). Three stars of the summer triangle, Deneb is the least brilliant, the summer triangle is formed by Deneb, Vega and Altair.
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We find also in the South of the Swan, the very former small constellation of the Arrow. It is situated in the Milky Way, in the North of the star Altair of the Eagle where, according to the legend, the Arrow reminds Hercules's fight against the vulture. The main star has for name Sham and it is a great giant. The Arrow contains only a relatively brilliant opened heap. It is in mountain and on nights without the Moon that we can best observe this constellation. The legend says that the Arrow would have been thrown by Hercules in the direction of

the Swan or of the Eagle. He could also involve the Cupid's dart, or even that of the Sagittarius. The Arrow is in the summer triangle, in the North of the constellation of the Eagle. It is halfway between the head of the Swan and Vega.
The Arrow is a weak constellation but of rather characteristic shape, formed by four stars in adaptation. Most in the East (γ Sge) Is the most brilliant. That of the middle (δ Sge) is hardly less brilliant than the first one. The less brilliant empennage of the Arrow is formed of α et β Sge. 
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