Spring constellations | ||||||||||||||||||||||
Spring constellations | ![]() | Updated June 01, 2013 | ||||||||||||||||||||
A constellation is a group of stars of the vault heavenly which enough close relations looked the appearance imagination of a figure onto the sky. A constellation is thus a asterism astronomy, an asterism is a remarkable figure drawn by particularly brilliant stars. particular. In the sky the stars of a constellation are very remote some of the others but seem grouped together there figures. | NB: 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). | |||||||||||||||||||||
Boötes constellation | ||||||||||||||||||||||
The constellation of the Boötes has a shape looking like that of a kite. It is especially known thanks to stars Arcturus α BOo (magnitude 0,03 to 36,71 AL) and Izar ε BOo (magnitude 2,37 to 209,75 AL). | Arcturus the most brilliant have a diameter equivalent to 23 solar diameters. | |||||||||||||||||||||
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Lion constellation (Leo) | ||||||||||||||||||||||
The constellation of the Lion becomes identified thanks to a group of stars forming a characteristic drawing of sickle. We can easily observe this constellation in our hemisphere in spring. | This constellation contains several brilliant stars, such Regulus (α Leonis), the heart of the Lion, and Denebola (β Leonis), its tail. |
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Small Lion constellation (Leo Minor) | ||||||||||||||||||||||
The Small Lion is a boreal constellation constituted by Hévélius to cover a zone devoid of name, we find there that stars of the fourth magnitude. | The Small Lion is placed over the head of the Lion. To find it, it is necessary to look between the constellation of the Great Bear and the Lion. | |||||||||||||||||||||
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Virgo constellation | ||||||||||||||||||||||
The constellation of the Virgo is easily observable of our north hemisphere and serves as mark for the identification of the other constellations. | It is an immense constellation (the second of the sky, after the Hydra) and extremely former. |
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