The constellation Bat or Cassiopeia, a natural compass that stands out in the sky. which has been used by sailors for a long time since ancient times
Different constellations In the sky in the past, people thought it was paradise. Later, with an abundance of stars in the sky, people then began to divide the stars into groups. Draw pictures of people, animals, and things according to the beliefs and ways of life of each region. For example, Europeans in the mountains live mostly by hunting. You can see the constellation Orion in the shape of Orion. Siamese people were cultivated or agriculture is the main one Therefore, the same constellation can be seen as a turtle and a crane, etc.
After this, in addition to looking at the beautiful stars for beauty at night, people began to use the constellations in the sky as a natural compass to guide them at night. Especially the group of sailors and finding the position of the North Star has been used as an aid in navigation in the northern hemisphere for many centuries. The unique feature of the North Star is that it is a star that has a fixed position unlike other stars. There will be a change in position in the sky as the Earth rotates. The North Star is still in the same position When the North Star is found, it can indicate that That direction is north.
Get to know bat constellation
bat constellation It is a constellation in the northern hemisphere. Like the North Star in the Northern Hemisphere. The constellation Cassiopeia is a constellation that can be seen all year round. But on the other hand Because it is a constellation in the northern celestial sphere.
People living in the southern hemisphere will have difficulty seeing. Because of the position of the stars above the celestial sky It will be below the surface of the earth most of the time. This constellation is one of 48 constellations listed by Ptolemy. It is also a constellation on the list of 88 constellations recognized by the International Astronomical Union.
This constellation represents Queen Cassiopeia in Greek mythology. Queen Cassiopeia, the mother of Princess Andromeda, disrespected the gods and caused the princess to be sacrificed to the whale demon, but the hero Perseus came to save her in time.
The Story of Queen Cassiopeia and Andromeda
Cassiopeia is one of the fifty sea nymphs in Greek mythology, known as the Spirit Girl of the Sea Her beauty was so famous that Cepheus, the king of Ethiopia, met her on the beach and fell in love with her Please marry me. and she gave birth to a daughter, whose name was Andromeda
After marrying King Cepheus Cassiopeia boasted that she and her daughter were more beautiful than the Sea Goddess. Make god Neptune The guardian of the ocean, Poseidon, was so angry that he created a huge wave. Intended to attack Ethiopia But Cassiopeia used her power to defend the city. Then Poseidon sent the sea demon Cetus. Intending to destroy and kill the great city of Ethiopia, his anxiety reached Cepheus. Therefore, he had to consult an expert, the Oracle of Ammon, who came to the conclusion that there was only one way to stop this Chetus. Andromeda’s daughter must take it. he came to sacrifice his soul at sea to Cetus, something that Cepheus had to do
When Andromeda was given By worshiping a talisman in the middle of the sea it meant killing evil demons. The son of the great god Zeus passed by, named Perseus, who was able to save Andromeda with a Pegasus horse. By turning Medusa’s head towards the devil, the devil turned to stone.
The great god Zeus ordered Cassiopeia to be hanged upside down. The sky and its throne But then the great god fell under the spell of Cassiopeia. This prompted the goddess Aphrodite to offer Cassiopeia an exchange. That is, I will save my life in exchange for beauty formulas. Cassopeia agreed. She survived and became the goddess Cassiopeia.
In the end, Aphrodite and Cassiopeia were good friends. and he often travels across the ocean to visit his daughter and the real kingdom. what andromeda Daughter of Cassiopeia There are also constellations. It is a constellation in the northern sky. Near the Flying Horse constellation.
Five stars in the constellation Bat
The constellation consists of 5-6 stars arranged in a μ shape (in the picture, looking upside down like a W), the Thai people call it the flying bat star The Cassiopeia constellation, which contains 5 stars.
α (Alpha) – Cas (Schedar) The star Cheddar is a yellow star in a binary star system with a magnitude of 2.23 and 8.9, located about 228 light years from Earth.
β – Cas (Caph) A caf star is a blue-white star. It is a variable star. It has an apparent magnitude of 2.25-2.31 and is about 54 light years away from Earth.
Y – Cas(Cih) Dao Sih is a blue star. It is a variable star. It has an apparent magnitude of between 1.6-3.0, with another star having a similar magnitude of around 8.8 and located approximately 613 light years away from Earth.
δ – Cas (Ruchbah) Ruchbah has an apparent magnitude of 2.7 and is approximately 99 light years from Earth.
ε – Cas(Segin) The star Segin has a magnitude of 3.38 and is approximately 442 light years from Earth.
Find the North Star from the constellation Bat
On nights when the constellation Ursa Major is not yet bright, has fallen, or risen. bat constellation It will play a big role in finding the North Star or determining the north. You can find out north based on the constellation Bat. So this constellation is important.
The constellation is always in the opposite direction from the constellation Ursa Major. So when the constellation Ursa Major falls The constellation rises. And when the constellation Ursa Major is about to rise, the constellation Bat is also about to set. From the constellation Bat Draw two lines from the four stars on either side of M to find the point of intersection. Then drag from the crossing point to the center star to get a line to the North Star as well.
However, apart from Cassiopeia, there are two other constellations that can be used to find the North Star. The constellation Ursa Major or the star Crocodile and the constellation Orion.
Researched and edited by Sittichot Suphawan.
Image by NASA, ESA, AND HUBBLE HERITAGE TEAM (STSCI/AURA)
Reference information
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