water jar constellation

water jar constellation插图

Aquarius

What is the water jar in Aquarius?

The Water Jar is an asterism formed by four relatively bright stars in the constellation Aquarius: Gamma, Pi, Eta, and Zeta Aquarii. Also known as the Urn, the Y-shaped asterism represents the water jar from which the celestial Water Bearer pours water toward the mouth of the Southern Fish (Piscis Austrinus).

How do you find Aquarius constellation?

Locating Aquarius. Aquarius is the 10th largest constellation in the sky; it is spread out over 980 square degrees. However, there are no particularly bright stars in the constellation and it can be difficult to view with the naked eye. The constellation can be seen in the spring in the Southern Hemisphere and the fall in the Northern Hemisphere.

Was the constellation Aquarius once called the Great one?

The constellation Aquarius was once called The Great One (or GU LA in the Babylonian language). Aquarius was linked to the god Ea, a figure that frequently appears in Babylonian artifacts.

Location

The Water Jar can be found using the stars of the brighter constellation Pegasus. The asterism lies south of the imaginary line connecting Markab at the southwest corner of the Great Square of Pegasus and the supergiant Enif, the brightest star in Pegasus.

Facts

In Chinese astronomy, the four stars of the Water Jar form an asterism known as Tomb (墳墓, Fén Mù ), which represents tomb hills and is part of the larger Roof mansion.

Stars

The stars that form the Water Jar are not physically related to each other, but merely appear in the same line of sight when seen from Earth. Zeta Aquarii, the oldest, brightest, and nearest of the four at 92 light years, lies at the centre of the asterism.

Water Jar

The Water Jar is an asterism formed by four relatively bright stars in the constellation Aquarius: Gamma, Pi, Eta, and Zeta Aquarii. Also known as… Read More »
Water Jar

Great Square of Pegasus

The Great Square of Pegasus is an asterism formed by three bright stars in Pegasus constellation – Markab, Scheat and Algenib – and Alpheratz in… Read More »
Great Square of Pegasus

Eta Aquariids

The Eta Aquariids are an annual meteor shower that appears to radiate from the southern constellation Aquarius. The meteor shower peaks on or around May 6… Read More »
Eta Aquariids

Locating Aquarius

Aquarius is the 10th largest constellation in the sky; it is spread out over 980 square degrees. However, there are no particularly bright stars in the constellation and it can be difficult to view with the naked eye.

Notable stars and objects

The brightest star in the Aquarius constellation is a rare yellow supergiant known as beta Aquarii, also known as Sadalsuud. It is 600 light-years away and has a magnitude of 2.9, which is low.

TRAPPIST-1 and exoplanets

Aquarius also hosts the ultracool star TRAPPIST-1, which is only 40 light-years from Earth (about 10 times the distance from our planet to the nearest star system, Alpha Centauri.) In 2017, astronomers announced that the star hosts at least seven exoplanets, all Earth-sized worlds that are likely also rocky.

Mythology

In astrology, which is not a science, Aquarius is the 11th sign in the Zodiac and represents those born between Jan. 20 and Feb. 18.

Finding Aquarius

Aquarius is visible from nearly the entire planet. It is bounded by several other constellations: Cetus (the sea monster), Pisces, Capricornus, Aquila, and Pegasus. Aquarius lies along the zodiac and ecliptic.

The Story of Aquarius

The constellation Aquarius was once called The Great One (or GU LA in the Babylonian language). Aquarius was linked to the god Ea, a figure that frequently appears in Babylonian artifacts. Ea was often associated with the floods that regularly visited the Babylonian part of the Middle East.

The Stars of Aquarius

In the official IAU chart of Aquarius, the figure of the water bearer is accompanied by a number of other stars that exist in this region. The brightest star is called alpha Aquarii and, like beta Aquarii, is a yellow supergiant star. They are G-type stars and are several times more massive than the Sun.

Deep-sky Objects in Aquarius

Aquarius is not close to the plane of the galaxy where many deep-sky objects exist, but it nevertheless sports a treasury of objects to explore. Observers with good telescopes and binoculars can find galaxies, globular cluster, and a few planetary nebulae.

Key Facts & Summary

The constellation of Aquarius is among the oldest of the recognized constellations of the zodiac – the Sun’s apparent path.

Location

The constellation of Aquarius is the 10 th largest constellation in the sky. Aquarius spreads out for over 980 square degrees. The constellation of Aquarius is a bit difficult to spot since it has few bright stars.

Messier Objects

In the constellation of Aquarius, there are only three Messier objects, they are the globular clusters Messier 2, Messier 72, and the open cluster Messier 73.

Notable Stars

The constellation of Aquarius, despite its size, has no particularly bright stars. The two brightest stars in Aquarius, Alpha Aquarii, and Beta Aquarii are luminous yellow supergiants, of spectral types G0lb and G2lb.

Other Deep-Sky Objects

Since the constellation of Aquarius is situated away from the galactic plane, the majority of deep-sky objects situated there are galaxies, globular clusters, and planetary nebulae.

Meteor Showers

Three meteor showers appear to come from the direction of the constellation of Aquarius. They are the Eta Aquariids, the Delta Aquariids, and the Iota Aquariids.

Mythology

The ancient Greeks linked the constellation of Aquarius with Ganymede, the cup bearer to the gods. In the Greek mythos, Ganymede was a good-looking young man who was the object of Zeus’ affection.