View allAll Photos Tagged OmegaCentauri
* Camera Fuji X-E1
* Lens Fujinon Aspherical 27mm f/2.8 @f/5.6
* Hoya Red Enhancer Filter (anti-light pollution)
* Tripod Weifeng WT-3750
* 49 photos X 8 seconds
* ISO 6400 (max. using raw files)
* Deep Sky Stacker
* Fitswork
* Infanview
This image still needs a post-processing.
Several sky objects.
Omega Centauri can be seen in the inferior left border although clouds and light pollution from sodium vapor lamps.
All star and nebula colors are very evident.
I'm not shot in dark skies until now but this work would be considered as a "trainning" for avoid mistakes when I will be in a better place.
Canon 450D/XSi Baader modified, Celestron C14 Hyperstar, BackyardEOS, no guiding.
40x25 seconds @ 400 ISO, 30 Darks, 100 Bias/Offsets, no flats.
Fully processed with PixInsight, except resize with Photoshop CS6.
M83.
Celestron 8 inch SCT on CG-5 mount, guided by Orion 50mm miniguider and PHD. Editing in DSS and Photoshop Elements. Canon 60D DSLR (unmodified)
NASAs Wide-field Infrared Survey Explorer, or WISE, has captured a favorite observing target of amateur astronomers -- Omega Centauri. Also known as NGC 5139, this celestial cluster of stars can be found in the constellation Centaurus and can be seen by the naked eye to observers at low northern latitudes and in the southern hemisphere. Omega Centauri contains approximately 10 million stars and is about 16,000 light-years away. This image spans an area on the sky equivalent to a grid of about 3 by 2 full Moons.
The ancient astronomer Ptolemy thought Omega Centauri was a star, and Edmond Halley identified it as a nebula in 1677. In the 1830s, John Herschel identified it as a globular star cluster orbiting the Milky Way Galaxy. A globular cluster is a spherical group of stars that are bound together by gravity.
Omega Centauri has always been the black sheep of globular clusters, since it has several characteristics that mark it as different from the typical globular cluster. For example, Omega Centauri is ten times more massive than other globular clusters. It also includes stars of a variety of ages, whereas other globular clusters contain stars from only one generation.
Recent research based on observations using NASA's Hubble Space Telescope and the Gemini Observatory indicates that there is a black hole at its center. This suggests that Omega Centauri may actually be a dwarf galaxy that has been stripped of its outer stars and not a globular cluster after all.
All four infrared detectors aboard WISE were used to create this mosaic image of Omega Centauri. The colors blue and cyan represent light emitted from stars at wavelengths of 3.4 and 4.6 microns. The green halo surrounding the center represents light at 12 microns, emitted by warm dust.
Splendours of the southern Milky Way from Vela (at top right) to Centaurus (at bottom left), including the Carina Nebula, Crux and Coal Sack, and Alpha and Beta Centauri. A part of the huge Gum Nebula is at far right. The False Cross is at right, with the large cluster NGC 2516, the Diamond Cluster, below it. The globular cluster Omega Centauri is at upper left. ..This is a stack of 4 x 3-minute exposures at f/2.8 with the 35mm lens and filter-modified canon 5D MkII at ISO 2000. Median combined to help eliminate cloud that was moving in. On the iOptron Sky-Tracker.
The thing's hollow—it goes on forever—and—oh my God—it's full of stars!
David Bowman (Arthur C. Clarke)
_________
Source: hubblesite.org/gallery/album/entire/pr2009025q/
Retouching: Lightroom
Colorful Stars Galore Inside Globular Star Cluster Omega Centauri.
Omega Centauri, ω Cen o NGC 5139 es un cúmulo globular situado en la constelación de Centaurus. Fue descubierto por Edmond Halley en 1677. Este cúmulo orbita alrededor de nuestra galaxia, la Vía Láctea, siendo el más grande y brillante de los cúmulos globulares que la orbitan. Es uno de los pocos que puede ser observado a simple vista. Omega Centauri esta a unos 18.300 años luz (5.6 kpc) de la Tierra y contiene varios millones de estrellas de Población II. Las estrellas de su centro están tan juntas entre si que se cree que se encuentran a tan solo 0,1 años luz las unas de las otras. Su edad estimada es de cerca de 12 mil millones de años. Contiene alrededor de 10 millones de estrellas.
Omega Centauri (ω Cen) or NGC 5139, also known as Caldwell 80, is a globular cluster in the constellation of Centaurus, discovered by Edmond Halley in 1677 who listed it as a nebula. Omega Centauri had been listed in Ptolemy's catalog 2000 years ago as a star. Lacaille included it in his catalog as number I.5. It was first recognized as a globular cluster by the English astronomer John William Herschel in the 1830s.[10] ("Omega Centauri" is a Bayer designation, even though the object is a cluster.)
Canon 7D + Canon 300mm f4 IS + Canon TC 1.4x mk III
139 fotos apilados con DSS
139 frames stacked with DSS
As well as a good view of Comet Leonard, the clear skies last night gave a clear sighting of the great globular cluster Omega Centauri - located around 16,000 light-years from Earth, and estimated to contain around one milllion stars.
Taken with APM/Lunt 152ED refractor on Orion Atlas mount. iPhone 12 Pro Max with NightCap app. TeleVue 17.3mm Delos attached to TeleVue FoneMate smartphone adapter.
NGC 5139, o aglomerado globular gigante do hemisfério sul celeste.
NGC 5139, the giant globular cluster of southern sky.
Maksutov Newtonian 190mm f/5.3
Camera Atik 314L+ mono
Filtros Baader LRGB
Este é o maior aglomerado estelar fechado que conseguimos ver da Terra.
This is the largest globular cluster we can see from Earth.
Details: 600mm f/7.5 apochromatic reflector with a Canon Rebel xTi camera, mounted on an EQ-5 Pro SkyWatcher. Exposure time was 20s at ISO 1600, processed with PhotoShop CS2 and Imaginomic Noiseware.
Omega Centauri.
Celestron 8 inch SCT on CG-5 mount, guided by Orion 50mm miniguider and PHD. Stacking/Editing in DSS and Photoshop Elements. Canon 60D DSLR (unmodified)
Aglomerado globular em Centauro. Várias estrelas com coma no canto inferior direito, causada pelo telescópio.
Exposición de 10 segundos con objetivo Nikon 50mm a f 1/1.4.
Se ven las dos estrellas más brillantes de la constelación del Centauro, Alfa centauri y Hadar, en la esquina inferior derecha. La mancha brillante difusa en el centro del cuadrante superior izquierdo es el cúmulo globular Omega centauri.
La sorpresa al hacer esta foto es la pequeña mancha difusa que se ve a la misma altura que Omega centauri pero cerca del borde izquierdo. Esa mancha es la radiogalaxia Centaurus A, una de las más cercanas a la tierra. Para mi mayor sorpresa, se puede observar incluso la banda de polvo de la recorre de un lado a otro por su centro (en la foto a tamaño original).
ω Centauri / NGC 5139. Apilado de 110x15 segs (27.5 min). f:400mm @ F/5.7, ISO 800. Canon 450D +Celestron 70/400, montura CG4. 09-04-2013
Edited Hubble Space Telescope image of the core of the globular cluster Omega Centauri. Inverted color variant.
Original caption: The NASA/ESA Hubble Space Telescope snapped this panoramic view of a colourful assortment of 100 000 stars residing in the crowded core of a giant star cluster. The image reveals a small region inside the massive globular cluster Omega Centauri, which boasts nearly 10 million stars. Globular clusters, ancient swarms of stars united by gravity, are almost as old as our Milky Way galaxy. The stars in Omega Centauri are between 10 billion and 12 billion years old. The cluster lies about 16 000 light-years from Earth. This is one of the first images taken by the new Wide Field Camera 3 (WFC3), installed aboard Hubble in May 2009, during Servicing Mission 4. The camera can snap sharp images over a broad range of wavelengths. The photograph showcases the camera's colour versatility by revealing a variety of stars in key stages of their life cycles. The majority of the stars in the image are yellow-white, like our Sun. These are adult stars that are shining by hydrogen fusion. Towards the ends of their normal lives, the stars become cooler and larger. These late-life stars are the orange dots in the image. Even later in their life cycles, the stars continue to cool down and expand in size, becoming red giants. These bright red stars swell to many times larger than our Sun's size and begin to shed their gaseous envelopes. After ejecting most of their mass and exhausting much of their hydrogen fuel, the stars appear brilliant blue. Only a thin layer of material covers their super-hot cores. These stars are desperately trying to extend their lives by fusing helium in their cores. At this stage, they emit much of their light at ultraviolet wavelengths. When the helium runs out, the stars reach the end of their lives. Only their burnt-out cores remain, and they are called white dwarfs (the faint blue dots in the image). White dwarfs are no longer generating energy through nuclear fusion and have gravitationally contracted to the size of Earth. They will continue to cool and grow dimmer for many billions of years until they become dark cinders. Other stars that appear in the image are known as "blue stragglers". They are older stars that acquire a new lease of life when they collide and merge with other stars. The encounters boost the stars' energy-production rate, making them appear bluer. All of the stars in the image are cosy neighbours. The average distance between any two stars in the cluster's crowded core is only about a third of a light-year, roughly 13 times closer than our Sun's nearest stellar neighbour, Proxima Centauri. Although the stars are close together, WFC3's sharpness can resolve each of them as individual stars. If anyone lived in this globular cluster, they would behold a star-saturated sky that is roughly 100 times brighter than Earth's sky. Globular clusters were thought to be assemblages of stars that share the same birth date. Evidence suggests, however, that Omega Centauri has at least two populations of stars with different ages. Some astronomers think that the cluster may be the remnant of a small galaxy that was gravitationally disrupted long ago by the Milky Way, losing stars and gas. Omega Centauri is among the biggest and most massive of some 200 globular clusters orbiting the Milky Way. It is one of the few globular clusters that can be seen with the unaided eye. Named by Johann Bayer in 1603 as the 24th brightest object in the constellation of Centaurus, it resembles a small cloud in the southern sky and might easily be mistaken for a comet. Hubble observed Omega Centauri on 15 July 2009, in ultraviolet and visible light. These Hubble observations of Omega Centauri are part of the Hubble Servicing Mission 4 Early Release Observations.
Omega Centauri
May 25th 2024 LMDSS (Bortle 2)
Camera: Samsung S22U
Mount: iOptron CEM26B
Scope: Skywatcher ED80
Eyepiece: 24mm Tele Vue Optics Panoptic
30 x 55s Lights
ISO800
Stacked in APP & Proc in PS.
This was taken at the Dubbo Observatory (dubboobservatory.com/index.html) during an Astro Exclusive session with Peter Starr. Peter was a patient, knowledgeable and skilled host, and it is well worth visiting the observatory for the dark skies and his company.
Technical specs: 17 inch PlaneWave equitorial mount with DSLR adapter. Processed in Photoshop and Lightroom.
Canon EOS 1000Da, Canon EF 40mm f/2.8 STM, bei f/3.5, ISO-800 16 x 7 Min., Cokin P820 Weichzeichner
Datum: 27./28. Mai 2014
Astrofarm Tivoli, Namibia
Photo taken through my camera, but using one of the telescopes at Warrumbungle Observatory, by the aptly named Peter Starr... on a cold night outside Coonabarabran
The Omega Centauri Cluster, first noted by Ptolemy in 150AD, then 'rediscovered' by Edmond Halley in 1677
The globular cluster Omega Centauri (NGC 5139) is located in the southern constellation Centaurus, the centaur. The cluster is both the largest and most massive globular gravitationally bound to the Milky Way, located about 15,800 light-years away. Astronomers have long wondered about the massive size of the cluster, which may also house a black hole in the core -- increasingly the likelihood that Omega Centauri is not a typical globular cluster, but actually the core of a dwarf galaxy that has been incorporated into the Milky Way. The cluster is the brightest globular visible from Earth, and has an apparent diameter equal to that of the full moon. This corresponds to an actual diameter of nearly 90 light-years. Incredibly, Omega Centauri holds perhaps four million stars -- several times more than the next largest globular clusters.
Technical information: This image is a composite of 15 frames with an exposure of 180 seconds each (45 minutes total). Ten flat frames and ten dark frames were then stacked and processed into the image. The image was taken with a modified Canon 5D Mark II DSLR through an Orion 190mm Maksutov-Newtonian telescope atop an Orion Atlas mount. It was taken at the Seminole State College Geneva Center (Geneva, FL) on the observing night of March 26-27, 2012.
The brightest cluster of stars you can see from Earth: the nucleus of a dwarf galaxy. Visible with the naked eye, but you'll need to be under a southern sky.
Astronomers think that many years back the milky way passed close to NGC5139 and stripped the galaxy of all but is nucleus of stars.
Mais uma captura de Ômega Centauri (NGC 5139). De brinde apareceram pelo menos 4 galáxias bem distantes na imagem (só é possível ver na imagem em tamanho completo - link na bio). Este é o maior e mais brilhante globular cluster no céu, visível a olho nu. Foto feita em 22/07/2022 no Camping Cachoeira dos Cristais, Chapada dos Veadeiros - GO (Bortle 1). Foi muito pouco tempo de exposição devido as núvens que atrapalharam bastante.
Another captuer of Ômega Centauri (NGC 5139). In the picture there is also at least 4 distant galaxies (you can oly see it in the full size picture, link available in my profile bio). This is the brighest and biggest globular cluster in the sky, also visible with the naked eye. Picutres taken in 22/07/2022 at Camping Cachoeira dos Cristais, Chapada dos Veadeiros - GO (Bortle 1). It was a short time total exposure because of the clouds, they got in my way.
Canon SL2 modified, William Optics zs sd (66/388mm) with 0.8 focal redicer (leading to f4.9 and 310mm focal lenght), ISO 1600. Guiding with Asiair and ASI290mc in an adapted finderscope 50mm, Eq5 Sky-watcher mount and AstroEq tracking mod. 6 Ligth Frames of 180s, 74 darks and 55 bias. 18 minutes total exposure. Processing on Pixinsight. Bortle 1.
#astrophotography #astrofotografia #astromomia #CanonSL2 #dslrmod #telescopio #telescope #williamoptics #zs66 #zs66sd #Eq5 #AstroEq #galaxy #NGC5139 #Omegacentauri #bortle1 #chapadadosveadeiros #globularcluester #bortle4sky #DeepSkyStacker #deepsky #pixinsight #asi290mc #ZwoAsi #zwoasi290mc #asiair #guiding #astfotbr
Edited ESO image of the giant globular cluster Omega Centauri.
Original caption: 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 300 000 stars. The data were processed using the VST-Tube system developed by A. Grado and collaborators at the INAF-Capodimonte Observatory. #L
Nova captura do aglomerado globular Omega Centauri, NGC 5139. Dessa vez com um balanço de cor, na minha opinião, mais bem feito, já que aglomerados globulares têm estrelas mais velhas e, portanto, mais vermelhas e frias. Fiz mais para testar o corretor de coma, já que é um algo grande que toma todo o sensor da câmera. Precisando mexer ainda na distância do corretor...
New capture of the Omega Centauri globular cluster, NGC 5139. This time, the color balance is better in my opinion, since globular cluster are populated with old, redish cold stars. I made this to test my new comma corrector, because this object covers all the camera sensor. Still need to move it a little...
Canon T3i modified, Sky-Watcher 200p (200/1000mm) with GSO CC x1.1, ISO 800. Guiding with Asiair and ASI290mc in an adapted finderscope 50mm, Eq5 Sky-watcher mount and AstroEq tracking mod. Only 21 Ligth Frames of 180s, 32 darks, 50 flats and 50 bias. It was used an Optolong L-Pro filter. 1h3m total exposure. Processing on Pixinsight.
#astrophotography #astrofotografia #astronomy #astromomia #CanonT3i #canon600d #dslrmod #telescopio #telescope #skywatcher #skywatcher200p #Eq5 #skywatcherEq5 #AstroEq #bortle8 #bortle8sky #DeepSkyStacker #deepsky #pixinsight #asi290mc #ZwoAsi #zwoasi290mc #asiair #guiding #lpro #optolonglpro #omegacentauri #ngc5139 #astfotbr
Taken through my 6 inch reflector telescope on a Celestron CG-5 Mount with an unmodified canon 400D. The imaged where guided by the Meade DSI Pro through a 114mm reflector guide scope.
5 x 5min ISO 800 Processed in Photoshop CS3 and stacked in Deep sky stacker.
Here's a shot of Omega Centauri taken from the Hovatter airstrip at the All Arizona Messier Marathon on 4/1/2011. The cluster sat just 9 degrees above the southern horizon during the exposure(s) - a testament to the transparency of the site on Friday night.
Telescope: Celestron CGEM 1100HD operating at f/2 with Hyperstar lens
Camera: Unmodified Canon 60d
Exposure: 48 x 30 seconds @ ISO 1600
EARTH & SKY Photo taken by Igor Hoogerwerf - Location: Mt John University Observatory, Lake Tekapo, New Zealand
For tips on capturing your own images of the night sky www.earthandskynz.com/window-to-the-universe/en/astrophot....
For some stunning Earth & Sky time-lapse animations, please refer to MakiTKP on You Tube.
Attention: Due to the overwhelmingly positive response we've had to our photo stream we’re having to pare down the amount of archived material we leave open to the public to make it easier for our valued guests to locate new images… As the “group photos” garner the most attention and appear most popular we’ll endeavor to keep access to these priceless pictures open for at least two months. Many kind thanks, Earth & Sky team.
A better image of Omega Centauri. Taken with a Sony A200 DSLR and a 150mm reflector in prime focus. 10x2 minute exposures stacked in Deep Sky Stacker. Luminance levels flattened and contrast enhanced in Irfanview.
This is the most massive globular cluster in our galaxy and is mostly visible from the southern hemisphere. A massive black hole is believed to be in the center of this cluster which is most probably a small galaxy captured by our own milky way, the spiral arms have long ago been stripped of its stars.
The awe-inspiring Omega Centauri, the largest globular cluster in the sky.
You are looking at several million stars. This object, lying in the southern constellation of Centaurus, is about the same size as the full moon, and is amazing in binoculars. It can also be seen with the naked eye in a dark sky.
Image Info: Canon 60D at the prime focus of the KPO 18" Reflector. 15 frames of 15 seconds, each taken at ISO 6400.
Edited Hubble Space Telescope image of the core of the globular cluster Omega Centauri. Inverted grayscale variant.
Original caption: The NASA/ESA Hubble Space Telescope snapped this panoramic view of a colourful assortment of 100 000 stars residing in the crowded core of a giant star cluster. The image reveals a small region inside the massive globular cluster Omega Centauri, which boasts nearly 10 million stars. Globular clusters, ancient swarms of stars united by gravity, are almost as old as our Milky Way galaxy. The stars in Omega Centauri are between 10 billion and 12 billion years old. The cluster lies about 16 000 light-years from Earth. This is one of the first images taken by the new Wide Field Camera 3 (WFC3), installed aboard Hubble in May 2009, during Servicing Mission 4. The camera can snap sharp images over a broad range of wavelengths. The photograph showcases the camera's colour versatility by revealing a variety of stars in key stages of their life cycles. The majority of the stars in the image are yellow-white, like our Sun. These are adult stars that are shining by hydrogen fusion. Towards the ends of their normal lives, the stars become cooler and larger. These late-life stars are the orange dots in the image. Even later in their life cycles, the stars continue to cool down and expand in size, becoming red giants. These bright red stars swell to many times larger than our Sun's size and begin to shed their gaseous envelopes. After ejecting most of their mass and exhausting much of their hydrogen fuel, the stars appear brilliant blue. Only a thin layer of material covers their super-hot cores. These stars are desperately trying to extend their lives by fusing helium in their cores. At this stage, they emit much of their light at ultraviolet wavelengths. When the helium runs out, the stars reach the end of their lives. Only their burnt-out cores remain, and they are called white dwarfs (the faint blue dots in the image). White dwarfs are no longer generating energy through nuclear fusion and have gravitationally contracted to the size of Earth. They will continue to cool and grow dimmer for many billions of years until they become dark cinders. Other stars that appear in the image are known as "blue stragglers". They are older stars that acquire a new lease of life when they collide and merge with other stars. The encounters boost the stars' energy-production rate, making them appear bluer. All of the stars in the image are cosy neighbours. The average distance between any two stars in the cluster's crowded core is only about a third of a light-year, roughly 13 times closer than our Sun's nearest stellar neighbour, Proxima Centauri. Although the stars are close together, WFC3's sharpness can resolve each of them as individual stars. If anyone lived in this globular cluster, they would behold a star-saturated sky that is roughly 100 times brighter than Earth's sky. Globular clusters were thought to be assemblages of stars that share the same birth date. Evidence suggests, however, that Omega Centauri has at least two populations of stars with different ages. Some astronomers think that the cluster may be the remnant of a small galaxy that was gravitationally disrupted long ago by the Milky Way, losing stars and gas. Omega Centauri is among the biggest and most massive of some 200 globular clusters orbiting the Milky Way. It is one of the few globular clusters that can be seen with the unaided eye. Named by Johann Bayer in 1603 as the 24th brightest object in the constellation of Centaurus, it resembles a small cloud in the southern sky and might easily be mistaken for a comet. Hubble observed Omega Centauri on 15 July 2009, in ultraviolet and visible light. These Hubble observations of Omega Centauri are part of the Hubble Servicing Mission 4 Early Release Observations.
NGC:5139 C80 GLOCL RA:13h27 DEC:-47°30' m: Omega Centauri CEN
Orion Skyview 203mm f/4.9 + MPCC +EOS 60D + Atlas EQ-G
3 × 30s ISO 400
或許對妳來說
我也只是
億萬星辰中之一
那般的渺小
NGC5139
半人馬座ω星團
Omega Centauri
在清境到合歡山一帶
正好南邊-西南邊沒有遮蔽
是除了南台灣墾丁外
少數可以拍到南十字等赤緯較低的天體
當然也可以拍的到半人馬座ω
全天最大的球狀星團
用肉眼即可看見
以望遠鏡觀測或攝影更顯壯觀
2020/1/21攝於清境觀星園
Reprocessing in 2021
Date：2020/1/21
Weather：Clear
Location：
Cingjing, Renai , Nantou, Taiwan
Camera：Canon 550D(mod)
Lens/Telescope：
GSO IMG-NT8/F4(OTA)+GSO 2" Coma Corrector
Mount：iOptron iEQ45 Pro
Guiding：50/200F4 + QHY5 III 290 C+PHD2
Parameter： ISO1600
Exposure time：60sec*40
Dark,Flat
Software：DSS+PS
Telescope ED 127
Mount EQ 6
Camera QHy 8
Location Winston Hills
April 2009
1 x 600 seconds + 12 x300 seconds +12 x 200 seconds
Edited European Southern Observatory image of the globular cluster Omega Centauri. Color/processing variant.
Original caption: This 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 300 000 stars. The data were processed using the VST-Tube system developed by A. Grado and collaborators at the INAF-Capodimonte Observatory.