Constellation Pisces


The constellation Pisces , seen by many in the shape of two fish tied by a rope, refers us to a story from Greek mythology, as well as infuses mystery in the night sky.


What is the constellation Pisces?

In astronomical science , constellations are groups of stars whose arrangement shows a certain figure . Since the first moment that man began to look at the stars , more than 80 constellations have been discovered , one of the best known being the constellation of Pisces. In Latin it is known as Pisces , and is part of the constellations of the zodiac , ranking last. The origin of its name is located in the shape of the constellation: it is seen as two fish joined by a rope.


Characteristics of the constellation Pisces

The main characteristics of the constellation Pisces are the following:

  • It is composed of 45 low-brightness stars
  • The conformation of its stars draws the figure of two fish tied by a rope
  • It has within it the  equinox spring
  • Its shape is that of two fish tied by a rope
  • It is one of the members of the zodiac
  • It can be observed from July to December


From the mythological perspective , they speak of different origins, although they all point to the common element of the two fish . Although the different versions come from various parts of the world, the bulk of them can be found in Greece and Rome , the main legends being Higinio and Eratosthenes .

In Roman mythology , the writer Higino describes the story of Venus and Cupid , two characters who, when surprised by Tifeo, escaped through the water, and there they became fish , but not before tying themselves with a rope to remain united.

The Greeks , for their part, handle the version of Eratosthenes . This astronomer says that the symbol of the fish has its origin in a great fish that saved a goddess called Derceto , half fish half woman, when she fell into a lagoon.


It is located between the constellation Aquarius to the west, Aries in the east, the triangle, Andromeda and Pegasus to the north and in the south it borders Cetus.

Pisces constellation stars

Of all the stars that Pisces has , the ones that stand out the most are the following:

  • α Piscium: It has many names, and it is located at the point where the two strings are knotted. In addition, its distance from the earth is almost 140 light years and it is made up of two white stars.
  • β Piscium: it is also known as “fish mouth” , and its color is bluish white. Added to this, it is located 492 light years away and has a luminosity 750 times greater than that of the Sun.
  • η Piscium : its name of Babylonian origin means “fish rope” , and it is located on the rope that goes to the constellation of Andromeda . It is a yellow giant star whose brightness is 316 times greater than that of the Sun.
  • γ Piscium: giant yellow-orange star , it was already known in ancient China and its luminosity exceeds 61 times that of the Sun.
  • Van Maanen Star: it is a white dwarf considered a stellar remnant , as it no longer generates energy.

Other objects

In addition to its stars , it contains two deep sky objects , namely:

  • NGC 520: It is a galaxy that was initially considered to be exploding, but recent discoveries assure that it is two galaxies colliding.
  • NGC 628: It is also known as the Fan Galaxy , and it is a spiral galaxy , the brightest of the Messier 74 group


Due to its low luminosity , it is a difficult constellation to locate with the naked eye . The ideal time to proceed with its observation is in the autumn season from the south and in the north during the spring.

Initially, it is necessary to orient yourself towards its brightest stars , which are located in the heads of the fish and the rope . To find the fish pointing north , you have to look for the Pegasus constellation and then look south; Similarly, if you want to find the fish’s head swimming south, the appropriate guide is the constellation Andromeda .

Finally, string placement is made easy by the glow of the α Piscium star.

What is the brightest star in the constellation Pisces

η Piscium is the brightest star in the entire constellation Pisces . Also known as Kullat Nunu in its Babylonian origin , it is found in the rope that binds the fish.

It is a yellow giant star, 316 times brighter than the Sun , and is currently in the final stage of its life . Its distance from our planetary system is 294 years .


Ancient humans recognized the importance of the stars to guide them, constellations being especially useful for early sailors.

The particular importance of the constellation Pisces is that it is located on the vernal equinox , or vernal point , located more than 2000 years ago in the constellation of Aries. This point is extremely valuable for students of astronomy because in it they tune in the 0 points of longitude and latitude , which allows the location of the celestial bodies .

Curiosities about the constellation Pisces

  • In terms of extension, it is ranked 14th out of 88 constellations
  • Despite its amplitude, it is considered a weak galaxy because it is difficult to locate and its stars have little brightness.
  • Contains an object made up of two colliding galaxies

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