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Cassiopeia (constellation)

 
Cassiopeia (constellation)

 
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Cassiopeia (constellation)
 
 
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Cassiopeia (colloquially ) is a constellation
Constellation

A constellation is a group of stars that appear to have a physical proximity in the sky. The stars in a constellation are often vastly distant from each other, but they appear close to each other from the perspective of Earth....
 in the northern sky. In Greek mythology
Greek mythology

Greek mythology is the body of myths and legends belonging to the Ancient Greece concerning their List of Greek mythological figures#Immortals and Greek hero cult, Cosmology#Metaphysical cosmology, and the origins and significance of their own cult and ritual practices....
 it was considered to represent the vain queen Cassiopeia
Cassiopeia (mythology)

The Queen Cassiopeia, wife of King Cepheus, King of Aethiopia of the mythological Phoenician realm of Ethiopia , was beautiful but also arrogant and vain; these latter two characteristics led to her downfall....
, who boasted about her unrivaled beauty. It was one of the 48 constellations listed by the 1st century Greek astronomer Ptolemy
Ptolemy

Claudius Ptolemaeus , known in English as Ptolemy , was a Roman Greek mathematics, Greek astronomy, geographer and astrologer. He lived in History of Roman Egypt, and was probably born there in a town in the Thebaid called Ptolemais Hermiou; he died in Alexandria around 168 AD....
, and it remains one of the 88 modern constellations today. Cassiopeia is easily recognizable due to its distinctive 'W' shape formed by five bright stars.

it would appear from Alpha Centauri
Alpha Centauri

Alpha Centauri ; is the brightest star in the southern constellation of Centaurus and an established binary star system, Alpha Centauri AB ....
]] Cassiopeia looks like a \/\/ or a crown.

Cassiopeia contains two stars visible to the naked eye that rank among the most luminous in the galaxy: ? Cas
Rho Cassiopeiae

Rho Cassiopeiae is a yellow hypergiant in the constellation Cassiopeia . It is about away, yet can still be seen by the naked eye , as it is 550,000 times as luminosity as the Sun....
 and V509 Cas
V509 Cassiopeiae

V509 Cassiopeiae is a star in the constellation Cassiopeia .V509 Cassiopeiae is a yellow-white stellar classification hypergiant with a mean apparent magnitude of +5.10....
.






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Cassiopeia (colloquially ) is a constellation
Constellation

A constellation is a group of stars that appear to have a physical proximity in the sky. The stars in a constellation are often vastly distant from each other, but they appear close to each other from the perspective of Earth....
 in the northern sky. In Greek mythology
Greek mythology

Greek mythology is the body of myths and legends belonging to the Ancient Greece concerning their List of Greek mythological figures#Immortals and Greek hero cult, Cosmology#Metaphysical cosmology, and the origins and significance of their own cult and ritual practices....
 it was considered to represent the vain queen Cassiopeia
Cassiopeia (mythology)

The Queen Cassiopeia, wife of King Cepheus, King of Aethiopia of the mythological Phoenician realm of Ethiopia , was beautiful but also arrogant and vain; these latter two characteristics led to her downfall....
, who boasted about her unrivaled beauty. It was one of the 48 constellations listed by the 1st century Greek astronomer Ptolemy
Ptolemy

Claudius Ptolemaeus , known in English as Ptolemy , was a Roman Greek mathematics, Greek astronomy, geographer and astrologer. He lived in History of Roman Egypt, and was probably born there in a town in the Thebaid called Ptolemais Hermiou; he died in Alexandria around 168 AD....
, and it remains one of the 88 modern constellations today. Cassiopeia is easily recognizable due to its distinctive 'W' shape formed by five bright stars.

Notable features

as it would appear from Alpha Centauri
Alpha Centauri

Alpha Centauri ; is the brightest star in the southern constellation of Centaurus and an established binary star system, Alpha Centauri AB ....
]] Cassiopeia looks like a \/\/ or a crown.

Cassiopeia contains two stars visible to the naked eye that rank among the most luminous in the galaxy: ? Cas
Rho Cassiopeiae

Rho Cassiopeiae is a yellow hypergiant in the constellation Cassiopeia . It is about away, yet can still be seen by the naked eye , as it is 550,000 times as luminosity as the Sun....
 and V509 Cas
V509 Cassiopeiae

V509 Cassiopeiae is a star in the constellation Cassiopeia .V509 Cassiopeiae is a yellow-white stellar classification hypergiant with a mean apparent magnitude of +5.10....
. The star ? Cas
Eta Cassiopeiae

Eta Cassiopeiae is a star system 19.4 light years away from Earth, in the constellation Cassiopeia . Sometimes the traditional name Achird is used....
 is a nearby (19.4 ly) binary star
Binary star

A binary star is a star system consisting of two stars orbiting around their common center of mass. The brighter star is called the primary and the other is its companion star or secondary....
 comprising a yellow Sun
Sun

The Sun , a G V star, is the star at the center of the Solar System. The Earth and other matter orbit the Sun, which by itself accounts for about 98.6% of the Solar System's mass....
-like dwarf and an orange dwarf star. Two Messier objects, Messier 52
Messier 52

Messier 52 is an open cluster in the Cassiopeia constellation. It was discovered by Charles Messier in 1774. M52 can be seen from Earth with binoculars....
 (NGC 7654) and Messier 103
Messier 103

Messier 103 is an open cluster in the constellation Cassiopeia . It was discovered by Pierre M?chain in 1781. M103 is at a distance of about 8,000 light-years from Earth....
 (NGC 581) are located in Cassiopeia. Both are open clusters and being 7th apparent magnitude objects they are easy targets with binoculars.

The supernova
Supernova

A supernova is a Astronomy#Stellar astronomy explosion. Supernovae are extremely luminous and cause a burst of radiation that often briefly outshines an entire galaxy, before fading from view over several weeks or months....
 known as Tycho's Star, or SN 1572
SN 1572

SN 1572 , "B Cassiopeiae" , or 3C 10 was a supernova of Type Ia supernova in the constellation Cassiopeia , one of about eight supernovae visible to the naked eye in historical records....
, was widely observed in Cassiopeia in 1572. The scientific description of this star was written by Tycho Brahe
Tycho Brahe

Tycho Brahe, born Tyge Ottesen Brahe , was a Danish nobility known for his accurate and comprehensive astronomy observations. Coming from Sk?neland, then part of Denmark, now part of modern-day Sweden, Brahe was well known in his lifetime as an astronomy and alchemy....
, and its appearance is said to have led Johannes Kepler
Johannes Kepler

Johannes Kepler was a Germans mathematician, astronomer and astrologer, and key figure in the 17th century Scientific revolution. He is best known for his eponymous Kepler's laws of planetary motion, codified by later astronomers based on his works Astronomia nova, Harmonices Mundi, and Epitome of Copernican Astrononomy....
 to become an astronomer
Astronomer

An astronomer is a scientist who studies Celestial body such as planets, stars, and Galaxy.Historically, astronomy was more concerned with the classification and description of phenomena in the sky, while astrophysics attempted to explain these phenomena and the differences between them using physical laws....
.

If we were able to observe Earth's Sun
Sun

The Sun , a G V star, is the star at the center of the Solar System. The Earth and other matter orbit the Sun, which by itself accounts for about 98.6% of the Solar System's mass....
 from Alpha Centauri
Alpha Centauri

Alpha Centauri ; is the brightest star in the southern constellation of Centaurus and an established binary star system, Alpha Centauri AB ....
, the Sun would appear in Cassiopeia as a yellow-white 0.5 magnitude star. The famous \/\/ of Cassiopeia would become a zig-zag pattern with the Sun at the leftmost end, closest to e Cas
Epsilon Cassiopeiae

Epsilon Cassiopeiae is a star system in the constellation Cassiopeia . It is approximately 442 light years from Earth. It has the traditional name Segin. One of the NASA designations for this star is Navi, in honor of astronaut Virgil I....
.

See also

  • Alpha Cassiopeiae
    Alpha Cassiopeiae

    Alpha Cassiopeiae is the second-brightest star in the constellation Cassiopeia . It has the traditional name Schedar .It is an orange giant star , a type of star cooler but much brighter than our Sun....
     traditionally named Schedar
  • Beta Cassiopeiae
    Beta Cassiopeiae

    Beta Cassiopeiae is a Delta Scuti variable star in the constellation Cassiopeia . It also has the traditional name Caph, from the Arabic word , "palm" , also known as ....
     traditionally named Caph also known as al-Sanam al-Nakah
  • Gamma Cassiopeiae
    Gamma Cassiopeiae

    Gamma Cassiopeiae is an eruptive variable star, whose brightness changes irregularly between +2.20 mag and +3.40 mag. It is the prototype of the Gamma Cassiopeiae variable stars....
     traditionally named by the Chinese as Tsih and was nicknamed Navi by US astronaut Gus Grissom
    Gus Grissom

    Virgil Ivan Grissom, more widely known as Gus Grissom, was one of the original NASA Project Mercury astronauts and a United States Air Force Aviator....
  • Delta Cassiopeiae
    Delta Cassiopeiae

    Delta Cassiopeiae is a star in the constellation Cassiopeia . It also has the traditional names Ksora and Ruchbah, derived from an Arabic language word ???? rukbah meaning "knee"....
     traditionally named Ksora or Ruchbah
  • Epsilon Cassiopeiae
    Epsilon Cassiopeiae

    Epsilon Cassiopeiae is a star system in the constellation Cassiopeia . It is approximately 442 light years from Earth. It has the traditional name Segin. One of the NASA designations for this star is Navi, in honor of astronaut Virgil I....
     traditionally named Segin but also called as Navi in honor of Ltc Grissom
  • Messier 52
    Messier 52

    Messier 52 is an open cluster in the Cassiopeia constellation. It was discovered by Charles Messier in 1774. M52 can be seen from Earth with binoculars....
     open cluster
  • Messier 103
    Messier 103

    Messier 103 is an open cluster in the constellation Cassiopeia . It was discovered by Pierre M?chain in 1781. M103 is at a distance of about 8,000 light-years from Earth....
     open cluster


External links