The Bayer designation c Aquarii is shared by two stars in the constellation Aquarius:
A Bayer designation is a stellar designation in which a specific star is identified by a Greek or Latin letter followed by the genitive form of its parent constellation's Latin name. The original list of Bayer designations contained 1,564 stars.
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.
Aquarius is a constellation of the zodiac, situated between Capricornus and Pisces. Its name is Latin for "water-carrier" or "cup-carrier", and its symbol is
86 Aquarii is a binary star system in the equatorial constellation of Aquarius. 86 Aquarii is the Flamsteed designation, though it also bears the Bayer designation c1 Aquarii. It is faint but visible to the naked eye with an apparent visual magnitude of +4.47. Based upon parallax measurements, the distance to this star is about 220 light-years.
88 Aquarii is a star in the equatorial constellation of Aquarius. 88 Aquarii is the Flamsteed designation, though it also bears the Bayer designation c2 Aquarii. In dark conditions it is visible to the naked eye with an apparent visual magnitude of +3.68. Based upon parallax measurements, this star is at a distance of around 271 light-years from Earth.
89 Aquarii is a binary star system in the equatorial constellation of Aquarius. 89 Aquarii is the Flamsteed designation, though it also bears the Bayer designation c3 Aquarii. The apparent visual magnitude of +4.69 is bright enough to be seen with the naked eye. Its distance from Earth is roughly 500 light-years (150 pc), based upon parallax measurements with an 11% margin of error.
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EZ Aquarii is a triple star system approximately 11.3 ly (3.5 pc) from the Sun in the constellation Aquarius. It is also known as Luyten 789-6 and Gliese 866 and all three components are M-type red dwarfs. The pair EZ Aquarii AC form a spectroscopic binary with a 3.8-day orbit and a 0.03 AU separation. This pair share an orbit with EZ Aquarii B that has an 823-day period. The A and B components of Luyten 789-6 together emit X-rays.
Delta Aquarii, also named Skat, is the third-brightest star in the constellation of Aquarius. The apparent visual magnitude is 3.3, which can be seen with the naked eye. The distance to this star is about 113 light-years based upon parallax measurements, and it has a close companion.
Gamma Aquarii is a binary star in the constellation of Aquarius. It has an apparent visual magnitude of 3.849, making it one of the brighter members of the constellation. Based upon parallax measurements taken during the Hipparcos mission, this star is located at a distance of approximately 164 light-years from the Sun.
Alpha Aquarii, also named Sadalmelik, is a single star in the constellation of Aquarius. The apparent visual magnitude of 2.94 makes this the second-brightest star in Aquarius. Based upon parallax measurements made during the Hipparcos mission, it is located at a distance of roughly 520 light-years from the Sun.
Beta Aquarii is a star in the constellation of Aquarius. Based upon parallax measurements obtained during the Hipparcos mission, it is approximately 540 light-years (165 parsecs) from the Sun. The primary or 'A' component is also named Sadalsuud.
Epsilon Aquarii, also named Albali, is a star in the equatorial zodiac constellation of Aquarius. It is visible to the naked eye with an apparent visual magnitude of 3.77. Based upon parallax measurements taken during the Hipparcos mission, it is approximately 208 light-years (64 pc) from the Sun.
Xi Aquarii is a binary star system in the equatorial constellation of Aquarius. It is visible to the naked eye with an apparent visual magnitude of 4.7. Based upon parallax measurements made during the Hipparcos mission, this system lies at a distance of around 179 light-years from the Sun.
Zeta Aquarii is the Bayer designation for a triple star system; the central star of the "water jar" asterism in the equatorial constellation of Aquarius. The combined apparent visual magnitude of this system is 3.65, which is readily visible to the naked eye. Parallax measurements yield a distance estimate of around 92 light-years from Earth.
Eta Aquarii, Latinized from η Aquarii, is the Bayer designation for a star in the equatorial constellation of Aquarius. It is visible to the naked eye with an apparent visual magnitude of 4.04. The distance to this star, as determined by parallax measurements, is about 168 light-years. Eta Aquarii is near the radiant of a meteor shower named after it.
Mu Aquarii, Latinized from μ Aquarii, is the Bayer designation for a binary star system in the equatorial constellation of Aquarius. It is visible to the naked eye with a combined apparent visual magnitude of 4.7. Based upon parallax measurements, the distance to this system is about 157 light-years. Mu Aquarii is a spectroscopic binary with an orbital period of 1,566 days and an eccentricity of 0.23. The combined spectrum matches a stellar classification of A3m, with the 'm' suffix indicating that this is an Am, or chemically peculiar star.
108 Aquarii is a star in the equatorial constellation of Aquarius. 108 Aquarii is the Flamsteed designation, although it also bears the Bayer designation i3 Aquarii and the variable star designation ET Aquarii. It has an apparent visual magnitude of 5.194 and can be seen with the naked eye under suitably dark skies. Based upon an annual parallax shift of 10.23, the distance to this star is 319 light-years.
107 Aquarii is a double star in the equatorial constellation of Aquarius. 107 Aquarii is the Flamsteed designation, although it also bears the Bayer designation i2 Aquarii. The pair have an angular separation of 6.787 arcseconds. They have a combined apparent visual magnitude of +5.305, with individual magnitudes of 5.72 and 6.72. The annual parallax shift is 13.66 milliarcseconds with an 8% margin of error. This indicates the system is at a distance of around 240 light-years from Earth.
32 Aquarii is a spectroscopic binary star in the constellation of Aquarius. 32 Aquarii is its Flamsteed designation. Its apparent magnitude is 5.29.
83 Aquarii is a binary star system in the equatorial constellation of Aquarius. 83 Aquarii is its Flamsteed designation, though it also bears the Bayer designation of h Aquarii. The combined apparent visual magnitude of the pair is 5.43, which is faintly visible to the naked eye. Based upon an annual parallax shift of 15.57 milliarcseconds, it is located at a distance of around 209 light-years from Earth.
51 Aquarii is a star in the equatorial constellation of Aquarius. 51 Aquarii is its Flamsteed designation. It has an apparent visual magnitude is 5.78 and is located around 410 light-years from Earth. This is an A-type main sequence star with a stellar classification of A0 V. It has a high rate of rotation with a projected rotational velocity of 91 km/s.
82 Aquarii is a star in the equatorial constellation of Aquarius. 82 Aquarii is its Flamsteed designation. It has an apparent visual magnitude of 6.15, which, according to the Bortle Dark-Sky Scale, means it is a faint star that requires dark rural skies to view. The annual parallax shift of 82 Aquarii is 2.24 ± 0.62 milliarcseconds, which equates to a distance of roughly 1,500 light-years from Earth. This is a red giant star with a stellar classification of M2 III.
70 Aquarii is a star in the equatorial constellation of Aquarius. 70 Aquarii is the Flamsteed designation and it is a Delta Scuti-type variable with the variable star designation FM Aquarii. The mean apparent visual magnitude of this star is 6.19 and it is around 380 light-years from Earth.
37 Aquarii is a star in the equatorial constellation of Aquarius. 37 Aquarii is its Flamsteed designation. Its apparent magnitude is 6.64.
R Aquarii is a variable star in the constellation Aquarius.
LP Aquarii is a pulsating variable star in the constellation of Aquarius that varies between magnitudes 6.30 and 6.64.