Constellations

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A red giant star ranges from 62 million to 621 million miles in diameter, or 100 to 1,000 times the size of the sun. However, red giants have cooler temperatures than the sun because the energy travels over a larger surface area.

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  • How big is a red giant star?

    Q: How big is a red giant star?

    A: A red giant star ranges from 62 million to 621 million miles in diameter, or 100 to 1,000 times the size of the sun. However, red giants have cooler temperatures than the sun because the energy travels over a larger surface area.
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  • Can you see all the constellations at the equator?

    Q: Can you see all the constellations at the equator?

    A: An observer at the equator will see all of the constellations during the course of one year. The polar constellations Polaris and the Southern Cross appear near the horizon, while the rest pass overhead based on the season.
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  • What is the North Star?

    Q: What is the North Star?

    A: The North Star is another name for the star Polaris. It is called the North Star because its location in the Northern Hemisphere remains constant throughout the year as other stars seem to move around it.
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  • How many stars make up Pegasus?

    Q: How many stars make up Pegasus?

    A: The constellation Pegasus contains at least 16 stars of magnitude 4 or brighter. Three of the four stars in the Great Square belong to Pegasus. Alpheratz, the star at the northeast corner of the square, was designated as the alpha star of the constellation Andromeda.
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  • Which star is the brightest?

    Q: Which star is the brightest?

    A: The brightest star visible from Earth is the sun. Though it is not exceptionally bright by the standards of other stars, its relative proximity to Earth makes it, by far, the brightest object in the sky, with an apparent magnitude of -26.74.
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  • How many stars make up the Little Dipper?

    Q: How many stars make up the Little Dipper?

    A: The Little Dipper is made up of seven stars. Unfortunately, unless a person lives in an area of the world that is not blinded by city lights, seeing more than one or two may be impossible.
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  • What are the most famous constellations?

    Q: What are the most famous constellations?

    A: According to Sky-Watch, two of the most famous constellations are Ursa Major, the big bear, and Orion, the hunter. Ursa Major stands out because it contains the well-known Big Dipper. Orion is popular because it is near the equator and can be seen from any place on the planet.
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  • What is a pattern in the stars called?

    Q: What is a pattern in the stars called?

    A: A pattern in the stars is called a constellation. According to the Las Cumbres Observatory Global Telescope Network, the sky is divided into 88 official constellation groups. The constellation groups are referred to as asterisms.
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  • How far is the constellation Gemini from Earth?

    Q: How far is the constellation Gemini from Earth?

    A: The constellation Gemini contains 85 major stars that vary in their distances from Earth. The closest star to Earth, Gliese 251, is around 17.99 light years from Earth.
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  • How many stars are there in the Pisces constellation?

    Q: How many stars are there in the Pisces constellation?

    A: The constellation Pisces is made up of 21 main stars, according to Universe Today. The constellation is the 14th largest constellation, and contains as many as 86 minor stars and other deep-sky objects within its confines.
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  • How did the constellation Leo get its name?

    Q: How did the constellation Leo get its name?

    A: The word "Leo" means lion in Latin. The constellation originally represented the ferocious Nemean lion that Hercules strangled to death as one of his 12 labors. According to legend, Zeus was impressed enough to make both of them constellations. Leo is not just a constellation, but one of the 12 constellations that make up the Zodiac. Unlike many constellations, Leo does look something like the creature it depicts.
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  • Q: When is the constellation Cygnus visible?

    A: The constellation Cygnus is best visible at 9 p.m. during the month of September in the northern hemisphere. It is known as the Northern Cross, as opposed to the Southern Cross. Cygnus is the Greek word for "swan."
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  • Q: Can you see the Leo constellation all year round?

    A: The constellation Leo is visible most nights of the year to stargazers in the Northern Hemisphere. Leo rises before midnight starting in November and is visible in the evening sky through the following July. August is the only month of the year when Leo is not visible at night.
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  • Q: What constellation is Regulus found in?

    A: Regulus is found in the constellation Leo, where it also called Alpha Leonis. It is the brightest star in the constellation. It is actually a four-star multiple star system with the pair Regulus B and Regulus C and another pair of Regulus A and an unnamed white dwarf.
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  • Q: How many stars does Cancer have?

    A: The constellation Cancer has five stars: Acubens (Alpha Cnc), Altarf (Beta Cnc), Asellus Borealis (Gamma Cnc), Asellus Australis (Delta Cnc) and Tegmen (Zeta 1 Cnc). Cancer also contains two Messier objects: the M44 (Beehive cluster), a small star cluster containing 50 stars, and the M67, another open star cluster.
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  • Q: How did the constellation Pegasus get its name?

    A: The constellation Pegasus was named after the winged horse of Greek mythology. He sprang from the blood of the Gorgon Medusa after she was slain by Perseus. Zeus, the chief god, placed the horse in the night sky among other demigods and heroes.
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  • What do you call a group of stars?

    Q: What do you call a group of stars?

    A: People typically refer to groups of stars in a pattern as constellations, but the accurate term is asterism; scientists refer to actual groups of stars as clusters and group individual stars by light magnitude. Because constellations are the standard observation grouping, astronomers refer to constellations when naming stars.
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  • Q: What are 5 facts about the constellation Ursa Major?

    A: Five facts about Ursa Major are: it is also known as the Great Bear, it is the largest constellation in the sky, it has a companion constellation known as Ursa Minor, the body and tail are part of the Big Dipper and most of Ursa Major is circumpolar. Circumpolar means that the constellation can be seen all year long.
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  • Q: Who named the constellation Leo?

    A: The zodiac constellation Leo was catalogued along with 47 other constellations in "Almagest" by the famous Greco-Egyptian astronomer Claudius Ptolemy in the second century AD. Many ancient cultures recognized the constellation, referring to it as "the lion" in their languages due to the shape formed when connecting its stars.
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  • Q: How many constellations are there?

    A: The International Astronomical Union recognizes 88 official constellations. Forty-eight of the 88 constellations were described by the ancient Greeks. Constellations are not the same as asterisms, which are simply recognizable patterns of stars such as the Big Dipper.
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  • Q: How many years does it take the Big Dipper's light to reach Earth?

    A: The stars in the Big Dipper are all different distances from Earth, which affects the time it takes the light to travel. The constellation's most distant is Alkaid; its light takes 210 years to reach Earth. From Megrez, the closest star, the light takes 63 years to each Earth.
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