Friday, October 17, 2008

Naming Stars in Different Cultures

by Richard Pickering

While modern astronomers refer to most stars solely by catalog numbers and astronomy coordinates, many people informally name stars using name a star services. In fact, throughout history people from various cultures have used star names of their own choosing. Many civilizations explained their existence through mythological stories passed from generation to generation, and often associated these stories with the stars in the night sky. As we'll see, even a major car company is named after the stars.

To illustrate, let's start with a constellation (an area of the night sky) modern astronomers have named after a character from Greek and Roman mythology - "Orion," the Great Hunter. Orion is one of the most well known and easily-identifiable constellations, and can be seen from just about anywhere on Earth: The best time to view Orion is during the evening hours between roughly December and March. Many classical mythology stories are told about Orion and how he came to be placed in the heavens. One such story is that Orion had no fear of any animal and therefore threatened to exterminate all of the animals of the earth. When Gaia, the goddess of the earth, heard this she became enraged and sent a scorpion to kill Orion. When Orion encountered the scorpion he was unable to kill it, and the scorpion stung Orion and sent him falling to the earth, fatally wounded. In honor of this story, Orion was placed in the night sky as a constellation, as was the scorpion - known as the constellation "Scorpius."

While 21st century astronomers refer to the constellation "Orion" after a hunter from classical mythology, other cultures have had different interpretations of these same stars. One of the distinguishing features of Orion is a line of three, bright stars that form what is called "The Belt of Orion." The ancient Egyptians thought these three bright stars were the resting place of the god Osiris. The Dogon people of West Africa viewed the three stars as the stairway to heaven. These same three stars have been associated with Christmas, viewed as representing the Magi - "The Three Wise Men" (The Three Kings) from the Bible. The people of the Marshall Islands viewed Orion's stars as an octopus and a fisherman: The story told was of a fisherman who was attacked by an octopus. The fisherman defended himself by using a stone to stab the head of the octopus. Although the octopus was wounded he was able to spray his ink, behind which he hid and was able to escape. The Chimu Indians of Peru believed that the middle star of Orion's belt represented a thief or mischief maker that the Moon Goddess punished. The Moon Goddess punished the wrongdoer by sending two stars to capture him and send him to four vultures that would eat him. This mythological story served as a warning for those who would commit crimes.

Another interesting example from classical mythology is related to a beautiful group of stars in the constellation Taurus called "The Pleiades," or "The Seven Sisters." These stars are visible in the evening sky from roughly November through April, and are often confused with "The Little Dipper" (which is in another constellation) as the bright stars of the Pleiades together resemble a very small dipper, or ladle. The story from classical mythology is that Orion, the hunter, became enamored of these seven beautiful ladies, and relentlessly pursued them throughout the world. Taking pity on the young women, Zeus placed them in the heavens where Orion continues to pursue them in the night sky.

Many cultures have also associated the Pleiades with females or femininity. The Australian Aborigines saw this group of stars as a cluster of girls who were musicians. These girls play their instruments for a group of young boys who are represented by the stars seen in Orion's belt. Some Native American tribes viewed the Pleiades as seven mothers who were looking for their seven lost sons: According to the Chumash Indians of California, these seven sons had become the stars of the Big Dipper. The Kiowa Indians saw these stars as young women who were placed in the heavens by the Great Spirit so as to save them from attacking bears. In Norse mythology, they were the hens of Freya, the goddess of love, beauty and fertility. In Japan the Pleiades were known as "Subaru," after which a Japanese car company is named.

Naming stars, then, is an age-old custom that has been practiced by different civilizations around the world.

About the Author

Richard Pickering is an astronomer for Name A Star Live. While no star-naming service can change the scientific designations of stars, only Name A Star Live makes it real by providing you: Virtual Planetarium™ astronomy software; an opportunity to view your star live using an online telescope; and the launch of your star name into space!

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Sunday, September 28, 2008

Going to the Planets with Your Eyes and Imagination

by Jeff Seward

A good way to teach your kids their first lesson about the eight or nine (depending on how you wish to tell them about Pluto) planets of the solar system is by combining factual lessons with visible sightings of the planets.

How to Teach Your Kids about Planets

START BY DISTINGUISHING PLANETS FROM STARS; this will also help them understand better why planets are easier to identify among the thousands of stars in the sky if they know what they're looking for. This may also be a good time to start explaining to them why Pluto, once known as the 9th planet in the solar system, has been demoted to becoming a dwarf star.

YOU CAN MAKE LESSONS MORE INTERESTING by providing explanations behind the stories of the planets' names. This makes a great segue from astronomy to Greek and Roman mythology.

IT IS IMPOSSIBLE to see all eight planets in one night so consider dividing your home astronomy lessons into several sessions.

SHOW YOUR KIDS A PHOTO OF OUR EARTH and explain to them why our planet is livable compared to other planets in the solar system. If possible, enumerate the factors that make Earth inhabitable. This is also a good time to explain why scientists believe there's a chance for Mars to have once been inhabited and the theory of aliens.

VENUS is the closest planet to Earth and is the easiest planet to locate with the naked eye because of its brightness. Although the phases of Venus can only be visible through the use of a telescope, you could show photos that will give your kids a good idea about the dangers of the greenhouse effect and emphasize to them the importance of keeping the environment clean.

JUPITER is the next easiest planet to locate with the naked eye because of its size. Make sure, therefore, that you mention to your kids how Jupiter is the largest planet in the solar system. If you have a small telescope with you, you can also point out to them where the Red Spot of the planet is and how it's actually a storm that has been brewing for more than three centuries. This is a good time to explain the differences in Jupiter's and Earth's weather and why we're blessed to have weather like ours.

MARS can be easily located as well because of its distinctive coloring. You can elaborate on what you've discussed earlier on by enumerating the similarities between Mars and Earth.

MERCURY is the closest planet to the Sun, and you can explain why its location or proximity to the center of the solar system makes it difficult to locate at certain times of the day. You can also provide explanations as to why Mercury's weather is extremely hot and cold at day and night respectively before citing the possibility of having the same thing happen to Earth.

ALTHOUGH SATURN IS NOT THE ONLY PLANET IN THE SOLAR SYSTEM WITH RINGS, it is however the most famous. Saturn will appear yellowish to the naked eye but its rings will only be visible with the help of a telescope. If you can show your kids what the rings look like, you can then explain to them what these rings are made of.

URANUS can only be seen by the naked eye if it's shining at its brightest. You will also have to be an optimal place and time. If you're living in a city, you might need the help of a telescope to give your kids a better and clearer view of this planet.

NEPTUNE is the most difficult planet to locate by the naked eye and conditions have to be near perfect first before this can be possible. Together with Uranus, both planets require you to study planetary schedules and locations if you wish to locate them at the shortest amount of time and effort.

And lastly, if you still have time and you do own a telescope, you can also show your kids Pluto. As Pluto is named after the God of the Dead, you might want to cite similarities between the mythical god and its equivalent planet. Explain about the controversy revolving the demotion of Planet.

And there ends your first home astronomy lesson for your kids. Prepare lots of food for the session because this makes a great bonding time for your family as well.

About the Author

Learn about Sun facts and Jupiter facts at the Planet Facts site.

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