Perseus Constellation

The Perseus constellation was one of the 88 constellations listed in Ptolemy’s sky catalogue in the 2nd century. This constellation only consists of 7 stars and 5 deep sky objects in its territory. Among these, there is a galaxy called Andromeda Galaxy which is also known as M31. Andromeda Galaxy has been an important object for astronomers since thousands of years ago. This galaxy is also the furthest object that can be seen by naked eyes and it’s full of mysteries.

As Andromeda Galaxy moves towards Milky Way, there were many space accidents because of its huge mass and gravitational force, such as: a star was swallowed by the galaxy; all planets in its way were sucked into it. That’s why Andromeda Galaxy was called as a galaxy destroyer.

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People thought that the accident would happen in 4 billion years. However, an interesting thing happened which proves that people were wrong all this time: Andromeda M31, also known as the galaxy destroyer, has been engaged with Milky Way for over one hundred million years and it is still moving towards Milky Way.

People were surprised by the fact that the two-sided fight was over one hundred million years long. The Milky Way’s newest generation of stars, planets and life forms are still alive without being destroyed by Andromeda M31 although this galaxy is much bigger than Milky Way. Why? Meanwhile, it is not known to people how gravity affects space-time.

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Perseus Constellation Location

The Perseus constellation is located in the first quadrant of the northern hemisphere. In fact, it is on the edge side of this hemispherical region, which forms a corner angle with the neighboring constellations such as Andromeda and Cepheus Constellation.

Perseus constellation has five stars of second magnitude or more and all of them are in the north side of Andromeda constellation, also referred to as princess constellation. Algol, the brightest star in Perseus constellation, is a large multiple star system of three stars. Algol Nebula or Messier Object 103 can be found between two of the Algol stars, which is a large planetary nebula, consisting of an elliptical ring-shaped star and a smaller flaring disk. This nebula is 8 arcminutes long with its central star shining at magnitude 13.1.

Perseus constellation has one Messier object called NGC 869 & 884 (The Double Cluster). It is an open cluster and a very young and rich star cluster. A dark nebula called as LDN 1451 can be found on Perseus constellation’s map. On the other hand, it has many galaxies such as Andromeda Galaxy (M31), Sextans B, C and D (galaxies of the Leo constellation) and M33 (galaxy) which are all located on the northern hemisphere.

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When Is Perseus Constellation Visible

The best time to see Perseus constellation throughout the year is in the northern hemisphere’s winter season. This means that this constellation will be visible during fall and spring seasons of each year. During this period, it can be seen at night from 8 pm until morning. Perseus constellation will rise on the east side and set on the west side of the sky.

Perseus constellation can be seen at mid-northern latitudes during winter solstice, which is around December 21 every year. On the other hand, this constellation will be visible at northern temperate latitudes during autumn season and it goes up on southeast side and sets on southwest side of the sky.

Related: Sagittarius Constellation

How To Find Perseus Constellation

Perseus constellation is easy to find. You can see it at northeast side of the Andromeda constellation because they form an angle between each other. Also, you can see three stars in a row on the south part of this constellation, forming a line from left to right as follows: Algol star, Mirfak star and Almaak. If you continue this line, you will see a V-shape group of stars which is known as the sword of Perseus in the north.

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