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A constellation is a group of conventional stars, whose position in the sky seems to be approximate. Some ancient civilizations decided to link by imaginary lines, creating forms in the sky.
jueves, 22 de diciembre de 2011
Pisces
The Romans came up with the idea of the goddess fish in the myth of Venus and her son Cupid. These two mythic figures were surprised by the monster Tifon, but Venus knew that they could escape by water. Caught Cupid and immersed himself in the water, the both were transformed into fish. To make sure that not be lost, were tied with a rope. In the sky we see, therefore, to both mother and child, which are united by a rope.
Pisces, the 12th zodiacal constellation, it is difficult to locate because the stars that compose it are very faint; none of them exceeds the magnitude 4. The figure consists of two fish tied by their tails with a rope; the fish eastern swims in the vertical direction, while your partner is oriented toward the west and located just a few degrees above the equator, more or less parallel to this. A ring of five stars, which in some occasions, they have received the name of the wheel, is located immediately south of the great Square of Pegasus, and to the south, but slightly to the east of the bright star Markab. The head of the fish, that swims, toward the north is about to collide with Andromeda, and it is easy to find it exactly to the south of Mirach. In the eastern end of this constellation, the rope that binds the fish is indicated by the star Alrischa. Pisces has its peak between the end of September and principles of October.
Stars:
η Psc
γ Psc
ω Psc
ι Psc
Torcularis Septentrionalis (ο Psc)
Aquarius
The son of king of Troy, Ganymede, was the most beautiful of all young people of the Earth ,Zeus rapture the boy and took him to the Olympus to make it his cupbearer staff. This abduction had many implications on mount Olympus. The arrival annoys Hebe, goddess of youth and daughter of Hera, wife of Zeus she felt offended by the insult to Hebe, the attitude of his wife infuriated Zeus, who glorified ganymede giving it a place in the stars.
Aquarius, is a constellation that’s complicated to distinguish because it has no star that exceeds the magnitude 3. Fornalhaut is a good indicator to find the constellation of Aquarius, and 30or toward the northwest of this same star distinguishes a stellar group that indicates the presence of the jar of water. You can locate the head of the man and the jug to the south of Pegaso at the height of the head of the horse. This constellation has its peak at the end of August and principles of September.
Their main stars are:
- Sadalmelik, a yellow star of magnitude 3.0, this star marks the right shoulder of the figure, next to the jar.
- Sadalsuud, yellow star of magnitude 2.9 . The left shoulder is indicated by this star.
Capricorn
Capricorn is associated with the Greek god Pan, known for its lustful behavior and by the invention of the pan flute. Some say he was a satyr; a man with goats legs, cloven-hoofed and horns. He received his honors when Rea sent the sea monster Tifon to destroy the gods of Olympus. Pan is slop pail in a river and he sought to become a fish to escape. But only achievement transformed to half and when returned to earth, the tifon had already broken up Zeus. To frighten the monster, Pan issued a squeal, which allowed Hermes (the messenger of the gods) recover the members torn from Zeus. Together, Pan and Hermes have been reassembled to Zeus that he rewarded Pan by assigning it a place among the constellations.
Capricorn, the tenth and the smallest of the zodiacal constellations, is formed by stars of magnitude 3 and 4, located to the east of Sagittarius. Its height is given at the beginning of August, but the combination of clear skies and its location at the south of the equator make this constellation is appreciated very little since middle and high latitudes in the northern hemisphere. You can locate by drawing a line from Vega (constellation Lira) that pass by Altair (from the constellation of the Eagle) going through the Milky Way, until you reach Algedi and Dabih, which are the stars alpha and beta of the horns of the goat.
Their main stars are:
- Algedi or Giedi, a yellowish star of magnitude 3.6 . The two names mean "goat" or "ibex". Algedi is, in reality a couple of stars, apparently boards but without any relationship.
Dabih - a star yellow-gold of magnitude 3.1 the name has its origin in arabic to Sa'd the Dhabih, "the lucky of the slaughtermen", and refers to the arabic tradition of sacrificing a goat when the Sun enters for the first time in the fields of stellar Capricorn.
- Deneb Algedi, magnitude 2.9 . The most brilliant of Capricorn, called the "tail of the goat".
Sagittarius
Scorpio
Libra
Virgo
Leo
Mythology:
In the history, Hercules must flay a leon monstrous whose skin was resistant to the stones and the metal. After fighting with the lion with his bare hands and after having drowned up to kill him, Hercules use the claws of the lion for tails. With the skin is made a layer that the toward invulnerable; and with the head of the animal, a helmet.
Leo is the fifth zodiacal constellation, as well as the most easily recognized in the sky: a lion crouched looking toward the west, whose head and mane are very visible thanks to the sickle stars similar to a question invested, which draws a curve to the north of Regulus (cc Leo). The constellation Leo is located just south of the stars "indicator" of the ladle, and to the northwest of Virgo. Its peak takes place at the beginning of March.
Their main stars are:
- Regulus (regulated) or Cor Leonis, 1.4 , blue-white. The names of these stars mean, respectively, the "little king" and "heart of the lion".
- Denebola (Denebola), 2. I, white. The name Denebola means "tail of the lion".
- Algieba, 1.9 , orange-yellow. The name means "front".