CentaurIs one of the constellations in the southern sky. In China, only a few southern provinces can see it on spring nights.There are two bright stars in the constellation. Alpha star was calledAlpha ，Apparent magnitude-0.27, the third bright star in the whole day;Ancient name of beta starAgena , the apparent star magnitude is 0.61, which is the eleventh bright star in the whole day.These two stars are very close. In ancient China, they were collectively called "Nanmen Double Stars". In the 15th centuryZheng He's voyages in the South Seas as far as Africa[4]They were used to navigate.South Gate Two is oneTriadIt has an 11 gradecompanion（Adjacent star）Only 4.2 light years away from ussolar systemThe nearest star.
Alpha Centauri It is about 4.37 light years away from the sun, and consists of three stars. Among them, star A and star B are similar to the sun, forming a star called“Alpha Centauri AB "Binary system；CStar nameFor“Adjacent star”Is a small and dimRed dwarf, is the star closest to the sun (about 4.2 light-years).
Centaurus is a huge bright constellation with two first class stars,Alpha andAgena 。There are various interesting celestial bodies in the Centaurus region.
One of the southern constellations.The central position is at 13:00 of right ascension,Declination－47°。The area is about 1060 square degrees.stayhydraTo the south,Sail baseAndJackalBetween, the south is immersed in the Milky Way.IntracerataApparent magnitudeThere are 193 stars brighter than the sixth order, including 28 stars brighter than the fourth order.
Centaurus
Centaur is located inhydraTo the south, between Jackal and Vela, only a few southern provinces in China can see it on spring nights.There are two bright stars in the constellation. Alpha star was calledAlpha ，Apparent magnitude-0.27, the third bright star in the whole day;Ancient name of beta starAgena , the apparent star magnitude is 0.61, which is the eleventh bright star in the whole day.These two stars are very close. In ancient China, they were collectively called "Nanmen Twin Stars". In the 15th century, Zheng He used them to navigate the Atlantic Ocean.Centaurus is the ninth constellation in the sky.
Centaur is often associated withSagittarius、Pegasus、PonyConfusion.Compared with the other three constellations, Centaurus is a huge and bright constellation with twoFirst-class star，Alpha Centauri Star and Beta Centauri.
Centaur
Centaurus is one of the southern constellations.To the Southern HemisphereObserverFor example, Centaurus is a constellation on autumn nights, but in China only a few southern provinces can see it on spring nights.be locatedhydrasouth,Southern crossto the north of,Compass holderBetween Lupus, Lupus and Vela, its southern part is immersed in the bright Milky Way.The two brightest stars in Centaurus, the yellow South Gate II and the white belly I, are close to each other and very closeCompass holder。fourteenth centuryZheng He's Seven Voyages to the Western SeasThey were used for navigation and were called "South Gate Double Stars".The famous Bling Star is in Centaurus, a child star of the trinity star Nanmen'er, which is far away from ussolar systemThe nearest star.
The third bright star in the whole day, the brightest star in Centaurus;Triad, about 4.365 light years away from the solar system;There is a planet on Star B
With the naked eye, it is a cloud of fog like light, while with a small telescope, it can be found that it is aOpen cluster。Its magnitude is+4.4.At 12ArcminuteAbout 60 stars can be seen in the area of.NGC 3766 is a young star cluster, probably less than 10 million years old.It is about 5800 light-years from the earth.
NGC 3918
This is aPlanetary nebula, it is small and bright, blue in light, with a diameter of 12 minutes of arc and a star magnitude of+8.1.
NGC 5128
Cen A , this brightGalaxyAndLocal galaxy groupVery close, BenGalaxy clusterIt is a group of more than 20 galaxies, including the Milky Way.It can be observed well with the smallest telescopeNGC 5128。It is a strong electromagnetic wave source, so it is also called Centaurus A radio source.It is also one of the special galaxies in the sky, hugeElliptical galaxyBy an obviousDust beltCut.This area looks darker and darker toward the southeast from the earth.To be visible, use a 3 inch (8 cm) non professional telescope.
Centaur
It is about 60000 light years in sizeBinocularsYou can see it.The spectacular dust belt passing through the center of the galaxy is the symbol of Centaurus A. These dust belts are so thick thatvisible lightThey almost completely cover the core of the galaxy.Because Centaurus A is a huge elliptical galaxy and has many red stars, it should contain very little dust, so its dust belt is a very unusual feature.Centaurus A is also called NGC 5128. In addition to the dust belt mentioned above, it also contains a high ratio of blue young stars compared with ordinary elliptical galaxies, and is a strong radio waveradiation source。Evidence suggests that Centaur A could be twoNormal galaxyThe product of collision.During the collision, many young stars were born, but the details of how the unusual dust belt in Centaurus A formed still need further exploration.
Centaurus A is only 13 million light-years away from us, so it is the nearest active galaxy.The strange looking galaxy Centaurus A has so much dust.Centaurus A is only 13 million light-years away from us, so it is the nearest active galaxy.Centaurus A is located in Centaurus in the southern sky, with a size of about 600 million light yearsBinocularsYou can see it.
Centaur
NGC 5139
Centaur omegaThis is a very hugeGlobular clusterThe ancients thought it was a fuzzy star.In the 17th century, people gave it aGreek alphabet, called Omega Centauri.It is the largest and brightest of its kind in the sky.Single stars can be seen even with small telescopes.If a larger telescope is used, thousands of star clusters can be seen passing through an indistinguishable disk composed of stars farther away.
It has more than 10 million stars and is one of the many globular clusters running around the center of our Milky Way.Recent observational evidence shows thatGalaxyAmong the 150 known globular clusters, the mass of Omega Centauri is also the largest.It is about 150 light-years in size and can be seen with the naked eye.If our sun is used as the standard for comparison, the stars in globular clusters are usually older, redder, and less massive.Studying globular clusters can not only help us understand the history of the Milky Way, but alsoCosmic ageThe upper limit of.
NGC 5460
This is a bright, scattered open star cluster.It has about 25 stars equal to+8 or darker.
ESO 269-57
ESO 269-57, this is ourspiral galaxyThe distance is about 150 million light years, and the size is 200000 light years (the Milky Way is 100000 light years).In front of it is a "star gauze" formed by stars in our Milky Way Galaxy.Brighter foreground stars due to the characteristics of telescope imagingdiffractionStarlight, anddigital cameraYellow vertical stripes produced by saturated pixels.
Centaur X-3
Centaur X-3（CentaurusX-3, abbreviated as Cen X-3) is located in the direction of Centaurus, which is the first discovery withX-ray pulseOfX-ray source, later confirmed as a low qualityX-ray binary。Centaurus X-3 was first discovered in 1967, 1971Uhuru satelliteIt is observed that it has regular pulses with a period of 4.84 seconds, and the pulses are interrupted for nearly 12 hours every 2.087 days.This indicates that it is aX-ray binary, X-ray pulse is generated bybinary star inneutron starAt the same time, periodic eclipses occur due to the mutual circling of two sub stars.
Centaurus X-3 is about 8000 away from the sunSecond gapIs a typical low-quality X-ray binary.itsPrimary starIt's 20.5 times of oneSolar massOfSupergiantThe companion star is a neutron star with the mass of 1.21 times the sun, and the luminosity is about 1038 erg/s.
Constellation myth
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Centaur
stayMYTHOSMedium,CentaurIt is a kind of fast running creature with excellent martial arts. Although its image is terrible, it is gentle and kind-hearted and never harms human beings.On the contrary, they often interact with humans, and people also like to get along with them.Speaking halfSagittariusSome people just dabbling in astronomy often confuse it with Sagittarius.The names of these two constellations are similar, and their origins are indeed related.In ancient Greek myths and legends, there was a half man and half horse race called Kentaurus.Their upper body is human, while their lower body is the body of a horse.They live in the deep mountains and forests, and they are savage and rude by natureGood wineLust.They are good at running and have excellent fighting skills.What makes people unbearable is that these centaurs always make trouble and can't live in harmony with their neighbors.
CentaurianLatinThe name is "Centaurus", which is transliterated as "Kentaurus".However, there are also half men and half horses that run counter to most Kentaurus,chiron Is the most typical one.Karon is virtuous, knowledgeable, intelligent and versatile.In Greek mythology, many great heroes and capable people were his students.Karon was loved and respected by everyone.Unfortunately, Charon was finally injured and killed by one of his students.After the death of Charon, the god of heavenZeusRaise him to the sky and become Sagittarius.[1]
Centaur
Sagittarius is located inzodiacOn, a little farther north than Centaurus,Northern HemisphereMid latitudePeople in vast areas can see the complete Sagittarius.Centaurus has many bright stars.The brightest Alpha Centauri,Chinese Star NameAlpha ，Apparent magnitude0, very bright, all day exceptSiriusandElderly Star, just count it on.In fact, Alpha Centauri is composed of three sub stars, a, b and cTriadC sub star is the nearest star in our solar system, 4.22 light-years away, which is what we usually callAdjacent star。In addition to Alpha Centauri, there are two first class stars, four second class stars and seven third class stars in this constellation.The connection of these bright stars outlines a militant half man and half horse. He is holding a long gun andJackalThe wolf fights.
There are two figures of centaur in the sky, Centaur is one of them (the other is Sagittarius).In Greek mythology, centaur is a kind of creature that runs fast and has excellent martial arts skills. Although it has a terrible image, it is gentle and kind-hearted and never harms human beings.On the contrary, they often interact with humans, and people also like to get along with them.Chiron, the centaur, was the mentor of many Greek heroes, includingYaskrebios（Asclepius）、Theseus （Theseus）、Achilles（Achilles）、jason (Jason) andHercules（Heracles）。
Stellar observation
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CentauralphaThe star is about 4.37 light years away from the sun, and consists of three stars. Among them, star A and star B are similar to the sun, forming the "Alpha Centauri AB"Binary system；CStar nameIt is a small and dim starRed dwarf, is the star closest to the sun (about 4.2 light-years).
stayLiu Cixin's novel《Trisomy》In China, Centaurus is the location of the three body civilization of extraterrestrial intelligence civilization, and the three body people pass throughHong'an BaseThe signal sent confirms thatEarth civilizationAnd then deploy the invasion of the solar system, and finally Centaurus was destroyed by the dark forest.
Wandering the earth
In Liu Cixin's Novels《Wandering the earth》In order to solve the problem of the sun becomingRed GiantLater, it was decided to build a "Earth Engine" to push the earth to Centaurus, and finally the earth reached Centaurus.
