NAME AND TITLE OF THE STARS.
From the earliest civilizations, the stars are considered grouped into constellations. The names of the stars both from the Greeks such as Sirius, Procyon, Pollux, Castor, Regulus, Polaris, Arcturus, Canopus, The Pleiades, as the Arabs and the names of Alcor (weak), Mizar (veil) Vega (fall), Aldebaran (the follower), Deneb (the tail), Rigel (leg) Algol (star demon), Betelgeuse (shoulder Giant), and a few hundred names.
Unable to give nEombre to the huge number of stars raised the idea of \u200b\u200banother system of nomenclature that is most useful to astronomers.
In 1603, Johannes Bayer of Germany published a book called Uranometría, an atlas of star maps which showed the stars in each constellation alafabeto using Greek letters that followed the genitive of the Latin name for the constellation to which it belongs. Bayer
established an order of brightness within each constellation, so called to the brightest star, b which was brighter, g to the next and AASI on. The drawback of this classification is that only the Greek alphabet has 24 letters, while on average there are about 70 visible stars for each constellation. When the Greek alphabet were insufficient for a constellation Bayer resorted to the use of the lowercase letters of the Latin alphabet, complicating the method.
After the appearance of the telescope showed the existence of a greater number of stars and was raised again the issue of its name.
In 1712, the English astronomer John Flamsteed, was the first catalog with the help of the telescope, called Coelestis History Britannica, resorted to the use of numbers instead of letters, numbers assigned to each star according to the order in which they reached the meridian. Eventually
were improved telescopes, observing and millions of stars in each constellation, the stars are distinguished not by name, or letters, or numbers, if not by their position on the celestial sphere, ie by right ascension and declination.
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