NGC mag 3. NGC mag 7. Hadar mag 0. NGC mag 9. Menkent mag 2. NGC mag NGC mag 6. NGC mag 8. HD mag 2. NGC Omega Centauri has, in fact, been known since ancient times albeit as a star.
It appeared in the star catalogue of Ptolemy over 18 centuries ago and received the Greek letter designation of Omega from Johannes Bayer.
Edmond Halley of comet fame called Omega a nebula in It was not until that its true glory as a cluster was revealed by the Of Omega, Herschel wrote: "It is beyond all comparison the richest and largest object of its kind in the heavens. My view of Omega Centauri through a 3. But I can offer no encouragement to residents of the Big Apple or the City of Brotherly Love, because even if all of their streetlights were somehow extinguished and a fresh, clean Canadian air mass positioned itself directly over the northeastern U.
And even if one were to somehow get it in view through a telescope, the cluster would be robbed of its full glory. To see Omega Centauri adequately, one should be no farther north than about latitude 35 degrees.
Of course, Centaurus' greatest claim to fame is that it contains the nearest star in the sky, Rigil Kentaurus. Kappa Centauri is a binary star, approximately light years distant. It belongs to the spectral type B2IV. The brighter component is a blue-white B-type subgiant with an apparent magnitude of 3.
It is a variable star of the DAV or ZZ Ceti type, which is to say that it is a pulsating white dwarf with a hydrogen-dominated atmosphere and belonging to the spectral type DA. The star exhibits variations in brightness due to non-radial gravity wave pulsations within itself. It is approximately 53 light years distant and has an apparent magnitude of Centaurus A is the fifth brightest galaxy in the sky and one of the closest radio galaxies to the solar system.
It is either a lenticular or giant elliptical galaxy, between 10 and 16 million light years distant. The galaxy has an apparent magnitude of 6. It is believed to contain a supermassive black hole at its centre. Centaurus A is thought to be undergoing collision with a spiral galaxy, which it is in the process of devouring. As a result, there is an intense burst of star formation in Centaurus A.
This is a composite of images obtained with three instruments, operating at very different wavelengths. X-ray data from the Chandra X-ray Observatory are shown in blue. Weiss et al. Kraft et al. In , a type Ia supernova, SN G, the dramatic end of a white dwarf star, was spotted in the galaxy.
Messier 83 M83 , better known as the Southern Pinwheel Galaxy , located in the constellation Hydra , is at the centre of the other subgroup. Omega Centauri is a globular cluster in Centaurus. It is located about 4 degrees south of Centaurus A.
The cluster has an apparent magnitude of 3. It orbits the Milky Way Galaxy and is one of the largest, brightest globular clusters known that are associated with the Milky Way. The cluster is visible to the unaided eye. The second released VST image may be the best portrait of the globular star cluster Omega Centauri ever made. Omega Centauri, in the constellation of Centaurus The Centaur , is the largest globular cluster in the sky, but the very wide field of view of VST and its powerful camera OmegaCAM can encompass even the faint outer regions of this spectacular object.
This view includes about stars. Acknowledgement: A. Originally listed as a star by Ptolemy, Omega Centauri was later rediscovered by Edmond Halley who listed it as a nebula in , and eventually by the English astronomer John Frederick William Herschel, who recognized is as a cluster in the s. The cluster contains several million Population II stars and its age is estimated to be around 12 billion years.
The stars located in the centre of the cluster lie very close to each other. They are only 0. The cluster is suspected to contain a black hole in its centre. Scientists speculate that the cluster used to form the core of a dwarf galaxy that was torn apart and absorbed into the Milky Way Galaxy. It was discovered by James Dunlop in Belonging to the Centaurus A group of galaxies, it is located at a distance of almost 13 million light-years.
Showing a remarkable resemblance to our own galaxy, NGC also hides a supermassive black hole behind the thick, ring-shaped structure of dust visible in the picture. But, unlike the black hole at the centre of our Milky Way, the million-solar-mass black hole inside NGC is an Active Galactic Nucleus that is frantically consuming any surrounding matter, and so releasing tremendous amounts of energy. This image combines observations performed through three different filters B, V, R with the 1.
Gendler and C. The galaxy is approximately It is a spiral galaxy that contains an unusual, energetic Seyfert II nucleus, one that might contain a large black hole.
NGC A is a polar-ring galaxy in Centaurus, a type of galaxy in which the outer ring of stars and gas rotates over the poles of the galaxy. There are only about polar-ring galaxies known. NGC A has an apparent magnitude of The Blue Planetary nebula, sometimes also referred to as the Southerner, is a bright planetary nebula in Centaurus. In case of very large constellations like Centaurus actually is these times can have little relevance.
The table below lists the top 20 brightest stars in the Centaurus constellation. See also the complete list of stars brighter than magnitude 6. Click on each star to see more details about it. The table below lists the 20 brightest deep sky objects in the Centaurus constellation.
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