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Constellation (DAG) Rank 251

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Constellations


It was first catalogued by Ptolemy in the 2nd century. Scutum was created by Johannes Hevelius in the 17th century. He named the constellation Scutum Sobiescianum, or the Shield of Sobieski, to honour the victory of the Polish King Jan III Sobieski in the Battle of Vienna in 1683.

Constellation  description

Is there a Zeus constellation?

In Hellenistic astrology, the constellation of Aries is associated with the golden ram of Greek mythology that rescued Phrixus and Helle on orders from Hermes, taking Phrixus to the land of Colchis. Phrixos and Helle were the son and daughter of King Athamas and his first wife Nephele.

Constellation  description

It is one of the Greek constellations, first documented by Ptolemy in the 2nd century. Hercules constellation was named after Heracles, the legendary hero from Greek mythology. It is one of the oldest constellations in the sky, dating back to Sumerian times. Grus constellation was introduced by the Dutch astronomer Petrus Plancius in the late 16th century. It is one of the constellations named after exotic animals, created by Dutch navigators during their expedition to the East Indies.

Constellation  description

All the rest are divided into seasonalconstellations. Which constellations will be circumpolar and which seasonal depends on your latitude. Modern astronomers only use constellations to break the sky into regions. I love to stare the stars and constellation at night.

The Earth's Moon

Helios agreed to this and Phaëton mounted the chariot. However, since he was an inexperienced driver, he soon lost control of the horses and the chariot plunged close to Earth, setting lands on fire and turning Libya into a desert.

What is the rarest constellation?

A constellation is a group of stars that forms an imaginary outline or pattern on the celestial sphere, typically representing an animal, mythological person or creature, a god, or an inanimate object. The origins of the earliest constellations likely go back to prehistory.

Constellation  description

Constellation Names

Constellation  description

They are usually named after mythological characters, people, animals and objects. In different parts of the world, people have made up different shapes out of the same groups of bright stars. In the past creating imaginary images out of stars became useful for navigating at night and for keeping track of the seasons.

Constellation  description

What is a star made of?

Orion's Belt or the Belt of Orion, also known as the Three Kings or Three Sisters, is an asterism in the constellation Orion. It consists of the three bright stars Alnitak, Alnilam and Mintaka. The stars are more or less evenly spaced in a straight line, and so can be visualized as the belt of the hunter's clothing.

Constellation  description

The first two satellites launched successfully in 2013. While the absolute magnitude scale is astronomers' best effort to compare the brightness of stars, there are a couple of main limitations that have to do with the instruments that are used to measure it.

Zeus had to prevent further disaster and he struck the young man down with a thunderbolt. Phaëton fell into the river Eridanus and his father did not drive his chariot for days after his son’s death, leaving the world in darkness.

Constellation  description
  • M44 contains about 50 stars, the brightest of which are of the sixth magnitude.
  • Sagitta is sometimes said to be an arrow shot from the bow of Hercules, a mythological hero and god.
  • Objects smaller than a tenth of a solar mass do not have enough gravitational pull to ignite nuclear fusion — some might become failed stars known as brown dwarfs.
  • A number of stars have possessed names since antiquity — Betelgeuse, for instance, means "the hand (or the armpit) of the giant" in Arabic.

Constellations

On Earth, we measure our longitude east or west from Greenwich, England; right ascension on the celestial sphere is measured from the intersection of the ecliptic (plane of Earth’s orbit) and the celestial equator. Ancient cultures saw patterns in the heavens that resembled people, animals or common objects — constellations that came to represent figures from myth, such as Orion the Hunter, a hero in Greek mythology.

Constellation  description

The Southern Cross is above Yutu, while the eyes of the Llama are Alpha Centauri and Beta Centauri. Deborah Byrd created the EarthSky radio series in 1991 and founded EarthSky.org in 1994.

Ancient civilizations, like the Mayans, drew their own star maps of the skies with their constellations, very few of which we use today. The Big Dipper was an important part of the Underground Railroad during the Civil War. Slaves escaping from the South were told to "follow the Drinking Gourd" to the North, according to the website The Constellations and Their Stars.

Three generations of stars may exist based on metallicity. When a number of these died, they released more heavy elements, and the youngest Population I stars like our sun contain the largest amounts of heavy elements. Stars are spinning balls of roiling, electrically charged gas, and thus typically generate magnetic fields. When it comes to the sun, researchers have discovered its magnetic field can become highly concentrated in small areas, creating features ranging from sunspots to spectacular eruptions known as flares and coronal mass ejections.

There are billions of them — including our own sun — in the Milky Way Galaxy. And there are billions of galaxies in the universe. So far, we have learned that hundreds also have planets orbiting them. Small patterns of stars within a constellation are called asterisms. Interesting Facts about ConstellationsThe largest constellation by area is Hydra which is 3.16% of the sky.

Sky charting and history

In particular, because of its location just off the Milky Way, it contains a wealth of globular clusters, the ancient clusters of stars which orbit the center of the galaxy. In fact, there are no fewer than seven Messier globulars — clusters catalogued by the French astronomer Charles Messier — in Ophiuchus; only Sagittarius contains this many Messier globulars. Because of the rotation of the Earth and its orbit around the Sun, we divide the constellations into two groups. Some constellations never rise nor set, and they are calledcircumpolar.

Constellations: A Guide to the Night Sky

Cancer contains two Messier objects, a set of astronomical objects first in 1771 by French astronomer Charles Messier in 1771. Cancer's most famous Messier object is M44, also known as the Beehive Cluster, which is a small star cluster that resembles a swarm of bees. M44 contains about 50 stars, the brightest of which are of the sixth magnitude. Praesepe is also one of the larger visible open clusters with an area of 1.5 square degrees, or three times the size of the full moon. Inca dark cloud constellations in the Mayu (Celestial River), also known as the Milky Way.

Is the Big Dipper a constellation?

Astronomers define star brightness in terms of apparent magnitude — how bright the star appears from Earth — and absolute magnitude — how bright the star appears at a standard distance of 32.6 light-years, or 10 parsecs.

It represents the bigger dog following the mythical hunter Orion in pursuit of a hare, represented by Lepus constellation. The constellation is also sometimes associated with Laelaps, the fastest dog in the world, given to Europa by Zeus as a present. Ara is associated with the altar on which the gods formed an alliance before going to war with the Titans in Greek mythology. The gods were led by Zeus and the Titans by Atlas.

Constellation  description

Is the North Star the brightest?

Five major constellations are always visible above the horizon from our latitudes: Ursa Minor, Ursa Major, Cassiopeia, Cepheus and Draco. They all revolve once in 24 hours around the North Star and stars in these are known as Circumpolar stars.

While on the main sequence, they are hot and blue, some 1,000 to 1 million times as luminous as the sun and are roughly 10 times wider. When they leave the main sequence, they become a bright red supergiant, and eventually become hot enough to fuse carbon into heavier elements. The life cycles of stars follow patterns based mostly on their initial mass. These include intermediate-mass stars such as the sun, with half to eight times the mass of the sun, high-mass stars that are more than eight solar masses, and low-mass stars a tenth to half a solar mass in size. The greater a star's mass, the shorter its lifespan generally is.