Coma Berenices

Coma Berenices is an ancient asterism in the northern sky, now one of the official modern constellations. It sits between the constellations Leo and Boötes and can be seen from both the northern and southern hemispheres. Its name, "Coma Berenices," means "Berenice's Hair" in Latin. It comes from a story about Queen Berenice II of Egypt, who, according to legend, offered her hair to the gods.

This constellation was first described in the third century BC by Conon of Samos. Later, famous astronomers like Gerardus Mercator and Tycho Brahe also supported its recognition. It is special because it is the only modern constellation named after a real person.

Coma Berenices has many interesting stars and objects. Its brightest star, Beta Comae Berenices, is about the same size as our Sun. The constellation also includes the Coma Star Cluster, the North Galactic Pole, and the rich Coma Cluster of galaxies. It is where the Coma Berenicids meteor shower begins, known for its fast-moving meteors.

History

Coma Berenices has been seen as an asterism since the Hellenistic period. It was added to Western astronomy in the third century BC by Conon of Samos. He was the court astronomer of Ptolemy III Euergetes. Conon did this to honor Berenice II. Berenice had promised to cut her hair as a votive offering if Ptolemy returned safely from battle in the Third Syrian War. Conon said a goddess had placed Berenice's hair in the sky as an asterism.

Coma Berenices became well-known in the 16th century. In 1536, it appeared on a celestial globe made by Caspar Vopel. He is credited with naming it a constellation. Later, it was included in many star catalogues and maps, such as those by Tycho Brahe and Johann Bayer. Before the 18th century, it had several names in English, including "Berenice's Bush" and "Berenice's periwig". By 1702, it was called Coma Berenices.

In non-Western astronomy, Coma Berenices had different names. The Akkadians called it Ḫegala. In Babylonian astronomy, it may have been on star clocks. In Arabic astronomy, it was known as Al-Dafira, meaning "braid". The Pawnee people showed it as ten faint stars on a star map. The Boorong people saw it as a small flock of birds.

Characteristics

Coma Berenices is a constellation, or pattern of stars. It is found between Leo to the west and Boötes to the east. This constellation covers an area of 386.5 square degrees on the night sky. It is the 42nd largest of the 88 modern constellations. The International Astronomical Union gave it the abbreviation "Com" in 1922. Observers north of 56°S latitude can see this constellation clearly.

Features

Coma Berenices is a small but interesting constellation in the northern sky. It has many galaxies, star clusters, and other deep-sky objects. Because it is far from the galactic plane, it has fewer stars and less dust, making it a good place to see faint objects.

The constellation has one galactic supercluster, two galactic clusters, one star cluster, and eight Messier objects. It also contains the North Galactic Pole. Some of its brightest stars are Beta Comae Berenices and Alpha Comae Berenices, which form an imaginary triangle with Gamma Comae Berenices. The Coma Star Cluster can be seen without a telescope. The Virgo Cluster, a large group of galaxies, partly lies within Coma Berenices. Other notable galaxies include the Black Eye Galaxy and the Needle Galaxy. The Coma Berenicids meteor shower produces some fast meteors.

Main article: List of stars in Coma Berenices

In culture

Coma Berenices has appeared in many stories and artworks. The famous poet Alexander Pope talked about the legend in his poem The Rape of the Lock. Artists and writers from many countries have used the constellation in their work. For example, Spanish artist Luis Ricardo Falero created a print showing Coma Berenices. American writer Richard Fariña also wrote about it in his novel Been Down So Long It Looks Like Up To Me. Many poets and musicians have been inspired by the story of this constellation.