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Aquarius, The Water Carrier Constellation Facts and Mythology

Aquarius Constellation Star Map

Aquarius (Pronounciation:Ack-where-e-us, Abbrev:Aqr, Latin:Aquarii) is a constellation, one of 88 constellations that the night sky is divided into. The sky is not divided up equally between the constellations. Aquarius takes up 979.854 sq. degrees of the night sky which equates to 2.38% of the night sky. Aquarius is the 10th largest in terms of size in the night sky.

The constellation name means The Water Carrier . The constellation is one of the original constellations that was devised by the Ancient Greco-Egyptian astronomer Ptolemy who lived between 90 A.D. and 168 A.D.

There are 17 stars that make up the main constellation. The hipparcos satellite scanned and detailed 2134 stars. There are 99 stars that can be seen with the naked eye in the constellation on a very clear night sky.

Aquarius is a member constellation of the Zodiac grouping, a group of 12 star signs that astrologers use to predict someones future based on their date of birth and which constellation appeared when the Sun set. The Zodiac year may be divided up equally between the twelve signs but when they appear in the night sky no longer conforms to the Zodiac calendar. Aquarius is an equatorial constellation that can be seen by countries nearest the Equator.

The distance to Aquarius is not calculable because all the stars that make up the constellation are at various distances. The best answer for distance to Aquarius is to calculate the average distance of the stars.

There are 35 Extrasolar Planets (Exoplanets) in this constellation that are detailed on this site. There is a dedicated page for exoplanets in Aquarius. For a list of named stars, that is stars that don't start HD or HIP, please visit Aquarius Star List Page.

There are 3 deep space objects that were identified by Charles Messier in this constellation. There are no non-Messier deep space objects in this constellation that are covered at present on this site.

The image at the top right of this page was generated using Night Vision, a free to use and download application by Brian Simspon.

Aquarius Star Facts

The caveat of these stars are that they are catalogued on this site. If you know of a star that is nearer or further then do let me know in the comments and I'll add it to the site. The stars mentioned are from the Hipparcos catalogue or have been added because of their special status.

Hip 113020, Nearest Star

The nearest star to Earth is Hip 113020 which is roughly about 15.29 Light Years from the Earth. The nearest star to the Earth with an exoplanet is HIP 113020 which is about 15.29 Light Years.

HIP 106645, Furthest Star

The furthest star that is located in the constellation is HIP 106645 and it is 326163.3 light years away from the Sun. The furthest figure is derived from either the 1997 or 2007 Hipparcos star catalogue parallax figure and it has been known to produce distances that are wrong.

Sadalsuud, Brightest Star in Aquarius

The brightest star in Aquarius is Sadalsuud and is located about 19.80 light years from the Sun. The star has a apparent magnitude of 2.9 but an absolute magnitude of -3.18 when the star is viewed from a distance of 10 Parsecs or 32.6 Light Years. The star is only recognised as being Beta Aquarii rather than having Alpha status.

4 Aquarii, Dimmest Visible Star

The dimmest star that can be seen in Aquarius with the naked eye is 4 Aquarii. The dim star has an apparent magnitude of 5.99. The dimmest star that a person is able to see with their naked eye is 6.0 magnitude based on the table in the reference. Ref: University of Michigan


Trappist-1 is a small insignificant star in the constellation of Aquarius. With an apparent magnitude of 18.80, you need a telescope of at 18 inches to see it. What makes this star stand out is that it has one of the largest planetary solar systems so far discovered.

It has been discovered that the star has at least 7 stars, only our solar system has more. Some of the planets were said to be closed to the star and therefore in the Goldilocks zone. It is one of the few stars to have a dedicated webite.

Aquarius Mythology

Zeus took a liking to Ganymede, the son of Tros who built Troy. He instructed the boy to become his water bearer. The job had previously been done by Hebe, the daughter of Hera. Hera, Zeus's wife was angered at the relationship between Zeus and Ganymede that she let it be known. In revenge for Zeus glorifying Ganymede, Hera turned Ganymede into the constellation.

Ganymede is the same character from mythology that the Jupiter moon Ganymede gets its name. Ganymede is the largest moon that orbits Jupiter, the gas giant. In addition to being the largest Jupiter moon, it is the largest moon orbiting any planet in the solar system and its bigger than our moon. Our Moon is the largest in comparison to the planet it orbits.

Meteor Showers Radiating from Aquarius

There are 27 Meteor Showers that occur during the year within this constellation based on information gathered from Adam Mickiewicz University (Poland). The list below are major ones and which I have a date period for.

NameActivityPeak ActivityClosest Star
Eta AquariidsApril 21-May 12May 5/6  
Tau Aquariids27 Jun- 6 Jul28-JunTau1 Aquarii
Southern Delta AquariidsJul 12 - Aug 19 Jul 28Skat
Southern Iota AquariidsJuly 1-September 18Aug. 6/7Iota Aquarii
Northern Delta AquariidsJuly 16-Sepember 10Aug. 13/14Skat
Northern Iota AquariidsAug 11-Sep 10Aug. 25/26Iota Aquarii
Gamma AquariidsSeptember 1-14Sept. 7/8Sadachbia

Aquarius Facts

Is a Zodiac Sign Yes
Brightest StarSadalsuud
Area979.854 sq. deg.
Percentage of Night Sky2.38%
Size Position10th
Hemisphere Equatorial
Site Exoplanet Count35
Meteor Shower Count27
Nearest StarHip 113020
Nearest Star with Exoplanet(s)HIP 113020
Brightest StarSadalsuud
Dimmest Star4 Aquarii
Furthest StarHIP 106645
Bright Star Count99
Hipparcos Star Count2134
Main Star Count17
Messier Deep Space Object Count3
*Non-Messier Deep Space Object Count0
Bordering / Neighbouring / Surrounding ConstellationsPegasus
Piscis Austrinus

*Note: The number of Non-Messier Deep Space Object Count relates to how many are covered on this site not how many there are.

List of Deep Space Objects (Galaxies, Nebulas, Supernovas, etc) in Aquarius

NameTypeDistanceDeclinationRight Ascension
Helix Nebula (NGC7293)Planetary Nebula714 Ly-20° 50' 13.622h 29m 38m 55
Messier 2 (NGC 7089)Globular Cluster33000-00:4921h 33m 5
Messier 72 (NGC6981)Globular Cluster53.40-55.74 kly-12:3220h 53m 5
Messier 73 (NGC6994)System of 4 Stars~2.5 kly-12:3820h 58m 9
Saturn NebulaPlanetary Nebula-11d 21` 48.2621h 04m 10m 877

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DayanniMonday, 23rd April 2018 8:48:05 PM