Antares

By: Audrey B.3rd Hour

Size

Antares has a radius 800 times larger than the sun. So it is 300 times larger than the sun’s total size. The supergiant is 15-18 solar masses.

Sun

Antares

Temperature

Antares is a whopping 97,654,867 degrees Fahrenheit.

Color

The star Antares is red with an orange look to it. (red-orange) It is the 15th brightest star in the sky.

Antares

Light Years

Antares is about 600 light-years from our solar system.

HR Diagram

Here is an HR diagram of Antares. It is 6,134 in the HR diagram.

Antares

Constellation The star Antares is

located in the constellation Scorpius. As stated before, it is the 15th brightest star in the sky. It’s name, Antares, is Greek for “Rival of Mars”. Antares is the heart of the Scorpius constellation because of its size, color and location.

Antares

History of Scorpius

In mythology, Scorpius was the name of the scorpion that the goddess sent to kill Orion by stinging him on the heel. This is the reason that Orion and Scorpius are separated from each other and are on opposite sides of the sky.

Life Cycle of Antares Antares is currently a Supergiant

star, which means it is in the middle of its life cycle. The larger the star, the shorter its life will be. This means Antares will not live very long in star years. It started out from a large cloud of gas and dust called a nebula. Antares was born when the gas and dust became so dense and hot that nuclear fusion began and formed a protostar. It then changed into a massive star. Antares proceeded to its current stage as a supergiant. As it continues its death cycle, its next step will be to become a supernova and explode.

The bottom cycle is Antares’s.

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• "The constellation of Scorpio : About the stars : Orion the hunter : Stories of the Skies : Games & activities : Explore online : NMM." National Maritime Museum: sea, ships, time and the stars : NMM. Web. 22 Nov. 2009. <http://www.nmm.ac.uk/stories-of-the-skies/orion/stars/the-constellation-of-scorpio>.

• Pasachoff, Jay M. Prentice Hall Science Explorer Astronomy (Science Explorer). Upper Saddle River: Prentice Hall, 2004. Print.

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• "WikiAnswers - What is the temperature on the star Antares." WikiAnswers - The Q&A wiki. Web. 21 Nov. 2009. <http://wiki.answers.com/Q/What_is_the_temperature_on_the_star_Antares>.