M2 is a globular star cluster containing about 150,000 stars. This means that it lies along the path the Sun travels in the sky during the year. M2, also catalogued as NGC 7089, is a rich globular cluster located approximately 37,000 light-years from Earth. The two brightest stars, Alpha and Beta Aquarii, are luminous yellow supergiants, of spectral types G0Ib and G2Ib respectively,[10] that were once hot blue-white B-class main sequence stars 5 to 9 times as massive as the Sun. The constellation of Aquarius, the Water Bearer, is best viewed in Fall during the month of October. It is also the origin point for the annual Delta Aquarids meteor shower. It is orbited by four planets, including one terrestrial planet 6.6 times the mass of Earth. Having cooled and swollen to around 50 times the Sun's diameter, it is around 2200 times as luminous as the Sun. The 1.23 Jupiter mass planet orbits at nearly the same distance as Earth orbits the Sun—1.1 AU, though its orbital period is significantly longer at around 442 days. Aquarius is the tenth largest constellation, visible just south of the celestial equator in the months around August.. [10], γ Aquarii, also called Sadachbia,[15] is a white main sequence star of spectral type star of spectral type A0V that is between 158 and 315 million years old and is around two and a half times the Sun's mass,[16] and double its radius. It contained the winter solstice in the Early Bronze Age. The planet's mass is 2.9 times the mass of Jupiter, and its orbital period is 182 days. The HD 215152 system consists of the planets HD 215152 b and HD 215152 c orbiting their K0-type, magnitude 8.13 sun. All rights reserved. It is 2,200 times brighter that the Sun and contains six times its mass. At apparent magnitude 2.9, Beta Aquarii is the brightest star in the constellation. Aquarius is the Latin word for such a water seller. Hubble space telescope = 30 The water bearer's head is represented by 5th magnitude 25 Aquarii while his left shoulder is Beta Aquarii; his right shoulder and forearm are represented by Alpha and Gamma Aquarii respectively. [7] Its orbital period is 760 years; the two components are currently moving farther apart. The constellation, Crater, is often thought to be Ganymede's cup. The boundary of the Aquarius constellation contains 17 stars that host known exoplanets. [7], ξ Aquarii, also called Bunda,[15] is an A7 spectral type star with an apparent magnitude of 4.69 and an absolute magnitude of 2.4. The planet's mass is 0.99 times that of Jupiter and its orbital period is 1,852 days. The ancient Egyptians believed that it represented the god of the Nile. Space Exploration | Space Games | Space Gallery | Space Links, Visit Us on Facebook | Follow Us on Twitter. The first radiant is located in the south of the constellation, while the second radiant is located in the northern circlet of Pisces asterism. Despite both its prominent position on the zodiac and its large size, Aquarius has no particularly bright stars, its four brightest stars being less than magnitude 2. This ancient constellation has its roots in a number of cultures. It belongs to a rare class of stars known as yellow supergiants. Aquarius is also home to several planetary nebulae. There are three major meteor showers with radiants in Aquarius: the Eta Aquariids, the Delta Aquariids, and the Iota Aquariids. It is 0.503 Jupiter masses but has a proportionally larger radius of 1.224 Jupiter radii. The name in the Hindu zodiac is likewise kumbha "water-pitcher".[2]. It is found in a region often called the Sea due to its profusion of constellations with watery associations such as Cetus the whale, Pisces the fish, and Eridanus the river.[3]. Q. It was given its moniker by the 19th century astronomer Lord Rosse for its resemblance to the planet Saturn in a telescope; it has faint protrusions on either side that resemble Saturn's rings. Naked-eye = 6* (dark sky) [8], θ Aquarii, sometimes called Ancha,[5] is a G8 spectral type star with an apparent magnitude of 4.16 and an absolute magnitude of 1.4. However, Aquarius is best seen in the spring in the Southern Hemisphere and the fall in the Northern Hemisphere. 12" (300m) telescope = 15 M72, also catalogued as NGC 6981, is a small 9th magnitude globular cluster located approximately 56,000 light-years from Earth. In tropical astrology, the Sun is considered to be in the sign Aquarius from 20 January to 19 February, and in sidereal astrology, from 15 February to 14 March. The two are also moving through space perpendicular to the plane of the Milky Way. [3] In Ancient Egypt astronomy, Aquarius was associated with the annual flood of the Nile; the banks were said to flood when Aquarius put his jar into the river, beginning spring. In Greek mythology, Aquarius was Ganymede, a Trojan youth who was carried off to Olympus by Zeus to serve as the cupbearer to the gods. Wei, the rooftop and 12th lunar mansion, was a V-shaped constellation formed by Alpha Aquarii, Theta Pegasi, and Epsilon Pegasi; it shared its name with two other Chinese constellations, in modern-day Scorpius and Aries.[6]. The Water Jar asterism was seen to the ancient Chinese as the tomb, Fenmu. [7][8], ζ Aquarii is an F2 spectral type double star; both stars are white. It is 2,200 times brighter that the Sun and contains six times its mass. An alternative version of the tale recounts Ganymede's kidnapping by the goddess of the dawn, Eos, motivated by her affection for young men; Zeus then stole him from Eos and employed him as cup-bearer. The star it orbits resembles the Sun beyond their similar spectral class; it has a radius of 1.1 solar radii and a mass of 1.09 solar masses. Tienliecheng also has a disputed position; the 13-star castle replete with ramparts may have possessed Nu and Xi Aquarii but may instead have been located south in Piscis Austrinus. As of 2002[update], the Sun appears in the constellation Aquarius from 16 February to 11 March. [12] It is around 6.4 times as massive as the Sun and around 56 million years old. [8] Compared to the Helix Nebula, another planetary nebula in Aquarius, it is quite small. [6], In the first century, Ptolemy's Almagest established the common Western depiction of Aquarius. These are the brightest and easiest-to-find double, triple, and quadruple star systems in the constellation Aquarius. [7], ε Aquarii, also known as Albali,[5] is a blue-white A1 spectral type star with an apparent magnitude of 3.77, an absolute magnitude of 1.2, and a luminosity of 28 L☉. The name "Yu-lin" means "feathers and forests", referring to the numerous light-footed soldiers from the northern reaches of the empire represented by these faint stars. ** Circumpolar constellations are visible year-round in the hemisphere listed (and not at all in the opposite). They sailed for nine days before washing ashore on Mount Parnassus. The star itself, barely below the threshold of naked-eye visibility at magnitude 7.6, is a G8IV (yellow subgiant) star located 131 parsecs from Earth. Sadalmelik is the second brightest star in this constellation at magnitude 2.96. WASP-6 b was discovered in 2008 by the transit method. Aquarius in history and star lore.This ancient constellation has been associated with water throughout the Old World. HD 210277, a magnitude 6.63 yellow star located 21.29 parsecs from Earth, is host to one known planet: HD 210277 b. It not water but light that is carried - ambrosa food of gods and/or spirit of regeneration. [5], In the Greek tradition, the constellation came to be represented simply as a single vase from which a stream poured down to Piscis Austrinus. Fireballs are common shortly after the peak, approximately between 9 May and 11 May. Aquarius was also associated with the destructive floods that the Babylonians regularly experienced, and thus was negatively connoted. * For southern latitudes, flip the season listed. Though it has a similar mass to the Sun—1.15 solar masses—it is significantly less dense with its radius of 5 solar radii. [21], There are also less-prominent systems in Aquarius. But whether the abundance of water was regarded as a … At magnitude 3.25, Skat is the third brightest star. The 11th lunar mansion shared its name with the constellation Xu ("emptiness"), formed by Beta Aquarii and Alpha Equulei; it represented a bleak place associated with death and funerals. His jar is a small triangle of stars with a fourth star in the middle. Recent research has shown that there are also twelve stars within the Aquarius constellation that possess planetary systems. The constellation of Aquarius, the Water Bearer, is best viewed in Fall during the month of October. [14] Alpha Aquarii, also known as Sadalmelik, has an apparent magnitude of 2.94. The Mediterranean traditions", Monthly Notices of the Royal Astronomical Society, "Chandra Observations of Coronal Emission from the Early G Supergiants α and β Aquarii", "NASA Telescope Reveals Largest Batch of Earth-Size, Habitable-Zone Planets Around Single Star", The Deep Photographic Guide to the Constellations: Aquarius, Warburg Institute Iconographic Database (over 300 medieval and early modern images of Aquarius), https://en.wikipedia.org/w/index.php?title=Aquarius_(constellation)&oldid=974826453, Short description is different from Wikidata, Articles containing Sumerian-language text, Articles containing potentially dated statements from 2002, All articles containing potentially dated statements, Creative Commons Attribution-ShareAlike License, This page was last edited on 25 August 2020, at 07:11.

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