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One of the most dense stellar clusters, Omega Centauri.
Photo by G. Scheckler with help of Slooh.com
Edited Hubble Space Telescope image of the center of the Omega Centauri globular cluster.
Original Caption: An international team of astronomers has used more than 500 images from the NASA/ESA Hubble Space Telescope spanning two decades to detect seven fast-moving stars in the innermost region of Omega Centauri, the largest and brightest globular cluster in the sky. These stars provide compelling new evidence for the presence of an intermediate-mass black hole. Omega Centauri is visible from Earth with the naked eye and is one of the favourite celestial objects for stargazers in the southern hemisphere. Although the cluster is 17 700 light-years away, lying just above the plane of the Milky Way, it appears almost as large as the full Moon when seen from a dark rural area. The exact classification of Omega Centauri has evolved through time, as our ability to study it has improved. It was first listed in Ptolemy's catalogue nearly two thousand years ago as a single star. Edmond Halley reported it as a nebula in 1677, and in the 1830s the English astronomer John Herschel was the first to recognise it as a globular cluster. Omega Centauri consists of roughly 10 million stars that are gravitationally bound. This image shows the central region of the Omega Centauri globular cluster, where the IMBH candidate was found. [Image Description: The central region of a globular cluster is shown, appearing as a highly dense and numerous collection of shining stars. Some stars show blue and orange glowing features around them.]
Edited Hubble Space Telescope image of the center of the Omega Centauri globular cluster. Color/processing variant.
Original Caption: An international team of astronomers has used more than 500 images from the NASA/ESA Hubble Space Telescope spanning two decades to detect seven fast-moving stars in the innermost region of Omega Centauri, the largest and brightest globular cluster in the sky. These stars provide compelling new evidence for the presence of an intermediate-mass black hole. Omega Centauri is visible from Earth with the naked eye and is one of the favourite celestial objects for stargazers in the southern hemisphere. Although the cluster is 17 700 light-years away, lying just above the plane of the Milky Way, it appears almost as large as the full Moon when seen from a dark rural area. The exact classification of Omega Centauri has evolved through time, as our ability to study it has improved. It was first listed in Ptolemy's catalogue nearly two thousand years ago as a single star. Edmond Halley reported it as a nebula in 1677, and in the 1830s the English astronomer John Herschel was the first to recognise it as a globular cluster. Omega Centauri consists of roughly 10 million stars that are gravitationally bound. This image shows the central region of the Omega Centauri globular cluster, where the IMBH candidate was found. [Image Description: The central region of a globular cluster is shown, appearing as a highly dense and numerous collection of shining stars. Some stars show blue and orange glowing features around them.]
Edited Hubble Space Telescope image of the Omega Centauri globular cluster.
Original caption: A new discovery has resolved some of the mystery surrounding Omega Centauri, the largest and brightest globular cluster in the sky. Images obtained with the Advanced Camera for Surveys onboard the NASA/ESA Hubble Space Telescope and data obtained by the GMOS spectrograph on the Gemini South telescope in Chile show that Omega Centauri appears to harbour an elusive intermediate-mass black hole in its centre.
Após algum tempo sem capturar esses objetos, que acho fascinantes, resolvi voltar a me dedicar um pouco mais a eles: os agrupamentos estelares globulares. Esté o maior e mais brilhante deles no céu noturno: Ômega Centauri (NGC5139). Visível a olho nu, relativamente próximo ao Cruzeiro do Sul, está localizado a cerca de 15.800 anos-luz de distância, na constelação de Centaurus. Contém mais de 10 milhões de estrelas.
After some time away from capturing these fascinating objects, I decided to return to them with renewed focus: globular star clusters. These are some of the oldest stellar systems in the universe. Here is the largest and brightest one in the night sky: Omega Centauri (NGC 5139). Visible to the naked eye and located relatively close to the Southern Cross, it lies about 15,800 light-years away in the constellation Centaurus. It contains over 10 million stars packed into a dense, spherical swarm.
- Exposures: 24 Ligth Frames of 120s, no darks. Used L-Pro filter. 48 minutes total exposure. Processing on Pixinsight. Bortle 8
- Camera: Zwo Asi 533mc Pro, gain 100 at 0°C
- Scope: William Optics zs sd (66/388mm) with 0.8 focal reducer
- Mount: Neq6 Pro Sky-watcher mount
- Guiding specs: Asiair and ASI120mm in a zwo 30mm f4 miniguider
#astrophotography #astrofotografia #astromomia #astronomy #telescopio #telescope #williamoptics #zs66 #zs66sd #Eq5 #asi533mcpro #globularcluster #NGC5139 #OmegaCentauri #Stars #Bortle8 #bortle8sky #StarCluster #DeepSkyStacker #deepsky #pixinsight #asi120mm #ZwoAsi #zwoasi120mm #asiair #optolong #optolonglpro
NGC 5139, Aglomerado globular Ômega Centauri. Apenas brincando com este tipo de objeto (e este em particular) que faz tempo que não capturo, pois acho bem desafiante. Single frame de 150 segundos.
NGC 5139, Omega Centauri globular cluster. Just playing around with this type of object (and this one in particular), which I haven’t captured in a while, as I find it quite challenging. Single 150-second frame.
- Exposures: 1 Ligth Frames of 150s, 0 darks and 0 bias, used L-Pro filter. 150 seconds total exposure. Processing on Pixinsight. Bortle 8
- Camera: Zwo Asi 533mc Pro, gain 100 at -10°C
- Scope: Sky-Watcher 200p (200/1000mm) with GSO 1.1 Comma Corrector
- Mount: NEQ6 Pro Sky-watcher mount
- Guiding specs: Asiair and ASI290mc in an adapted finderscope 50mm
#astrophotography #astrofotografia #astromomia #astronomy #telescopio #telescope #Skywatcher #Skywatcher200p #NEQ6Pro #asi533mcpro #OmegaCentauri #NGC5139 #Globularcluster #Bortle8 #DeepSkyStacker #deepsky #pixinsight #asi290mc #ZwoAsi #zwoasi290mc #asiair #optolong #optolonglpro