View allAll Photos Tagged CentaurusA
NASA image release June 16, 2011
Resembling looming rain clouds on a stormy day, dark lanes of dust crisscross the giant elliptical galaxy Centaurus A.
Hubble's panchromatic vision, stretching from ultraviolet through near-infrared wavelengths, reveals the vibrant glow of young, blue star clusters and a glimpse into regions normally obscured by the dust.
The warped shape of Centaurus A's disk of gas and dust is evidence for a past collision and merger with another galaxy. The resulting shockwaves cause hydrogen gas clouds to compress, triggering a firestorm of new star formation. These are visible in the red patches in this Hubble close-up.
At a distance of just over 11 million light-years, Centaurus A contains the closest active galactic nucleus to Earth. The center is home for a supermassive black hole that ejects jets of high-speed gas into space, but neither the supermassive or the jets are visible in this image.
This image was taken in July 2010 with Hubble's Wide Field Camera 3.
The Hubble Space Telescope is a project of international cooperation between NASA and the European Space Agency. NASA's Goddard Space Flight Center manages the telescope. The Space Telescope Science Institute (STScI) conducts Hubble science operations. STScI is operated for NASA by the Association of Universities for Research in Astronomy, Inc., in Washington, D.C.
For images and more information about the findings, visit:
and
www.hubblesite.org/news/2011/18
Cheryl Gundy, STSCI
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
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With the lock-down the light pollution is lower and I am able to do some broadband imaging in the back yard.
First observed by Chandra in September 1999, Centaurus A was an early demonstration of the spectacular science this powerful X-ray observatory could do. Astronomers continue to use Chandra to study this elliptical galaxy (also known as NGC 5128) that contains a spectacular jet and a core teeming with X-ray emitting sources.
This 2001 Chandra image of Cen A shows a bright central source: the Active Galactic Nucleus (AGN) suspected of harboring a supermassive black hole. Chandra also detects a jet emanating from the core and numerous point-like X-ray sources, all bathed in diffuse X-rays produced by several-million-degree gas that fills the galaxy. The unprecedented imaging resolution of Chandra allows scientists for the first time to clearly resolve each of these distinct components of the X-ray emission for detailed study.
Over 200 point-like X-ray sources have been identified and studied in Cen A. Because of their distribution around the center of the galaxy, it is believed that most of these sources are X-ray binaries in which a neutron star or stellar-sized black hole is accreting matter from a nearby companion star. A few may be supernova remnants or unrelated, more distant background galaxies. Comparison of Cen A's X-ray binary population with populations in other galaxies is important for understanding the evolutionary history of galaxies.
This year, NASA's Chandra X-ray Observatory celebrates its 20th year in space exploring the extreme universe.
Credit: NASA/SAO/R.Kraft et al.
More about Chandra's 20th Anniversary
Chandra's 2003 images of two distant massive galaxies show that they are enveloped by vast clouds of high-energy particles that are evidence for past explosive activity. In both galaxies radio and X-ray jets allow this activity to be traced back to central supermassive black holes. The jets are heating gas outside the galaxies in regions hundreds of thousands of light years across.
The Chandra data will help scientists understand how nature imposes a weight limit on the growth of the most massive galaxies in the universe. These galaxies reside in regions of space that contain an unusually large concentration of galaxies, gas and dark matter.
A massive galaxy and its central black hole grow through cannibalization of nearby galaxies and through accumulation of gas from intergalactic space. Eventually however, the infall of matter into the central supermassive black hole will produce an energetic jet, which will heat the surrounding gas and stop the growth of the galaxy at a few dozen times the mass of our Galaxy.
Another implication of this research is that a massive galaxy does not grow steadily, but in fits and starts. In the beginning of a growth cycle, the galaxy and its central black hole are accumulating matter. The energy generated by the jets that accompany the growth of the supermassive black hole eventually brings the infall of matter and the growth of the galaxy to a halt. The activity around the central black hole then ceases because of the lack of a steady supply of matter, and the jets disappear. Millions of years later the hot gas around the galaxy cools and resumes falling into the galaxy, initiating a new season of growth.
Image credit: NASA/CXC/Columbia/C.Scharf et al.
#NASA #MarshallSpaceFlightCenter #MSFC #Marshall #chandraxrayobservatory #ChandraXRay #cxo #chandra #astronomy #space #astrophysics #nasamarshallspaceflightcenter #solarsystemandbeyond #galaxy #supermassiveblackhole #blackhole #galaxy
Dans la constellation du Centaure (Centaurus), à 13,7 millions d'a.l. de la Terre, la galaxie lenticulaire Centaurus A (NGC 5128) est l'une des radiogalaxies les plus proches et la 5ème la plus brillante du ciel. Un jet relativiste extrait de l'énergie à proximité de ce qui supposé être un trou noir supermassif, situé au centre de la galaxie et responsable des émissions dans le domaine des rayons X et radio. Ses zones internes se déplacent à environ la moitié de la vitesse de la lumière. Les rayons X sont produits plus loin lorsque le jet heurte le gaz environnant en produisant des particules de haute énergie.
Obscurcie par une bande de poussières, sa morphologie inhabituelle est généralement expliquée comme étant le résultat d'une fusion entre deux galaxies plus petites. Son bulbe est constitué principalement d'étoiles rouges évoluées, le disque de poussières étant cependant le siège d'une formation d'étoiles plus récentes, plus de 100 régions de formation d'étoiles y ayant été identifiées (cf. wikipédia).
Pour situer l'astre dans sa constellation :
www.flickr.com/photos/7208148@N02/48917597476/in/datepost...
NGC 4945
Credit: ESO/Dss2, Giuseppe Donatiello
J2000 RA 13h 05m 27.5s Dec −49° 28′ 06″
NGC 4945 is a barred spiral galaxy at 11.7 milion light-year in Centaurus, and located near the star Zeta Cen.
NGC 4945 is one of the brightest galaxies of the CentaurusA/M83 Group, a large, nearby group of galaxies.
NGC 4945 is at the center in this image, below ESO 219-28.
This is a composition of DSS plates.
NASA's Chandra X-ray Observatory has helped create a spectacular view of Centaurus A that shows the effects of a supermassive black hole. At the center of this nearby galaxy, a central black hole powers jets and lobes that flare against a background of stars and stardust. In the upper left of the image, an X-ray jet extends about 13,000 light years away from the black hole. The material in that jet is travelling at about half the speed of light.
Image credit:
X-ray: NASA/CXC/CfA/R.Kraft et al.; Submillimeter: MPIfR/ESO/APEX/A.Weiss et al.; Optical: ESO/WFI
Read more/larger images:
chandra.harvard.edu/photo/2009/cena/
Learn more about Chandra:
p.s. You can see all of our Chandra photos in the Chandra Group in Flickr at: www.flickr.com/groups/chandranasa/ We'd love to have you as a member!
NASA image release May 20, 2011
To see a really cool video related to this image go here: www.flickr.com/photos/gsfc/5740451675/in/photostream
The giant elliptical galaxy NGC 5128 is the radio source known as Centaurus A. Vast radio-emitting lobes (shown as orange in this optical/radio composite) extend nearly a million light-years from the galaxy. Credit: Capella Observatory (optical), with radio data from Ilana Feain, Tim Cornwell, and Ron Ekers (CSIRO/ATNF), R. Morganti (ASTRON), and N. Junkes (MPIfR).
To read more go to: www.nasa.gov/topics/universe/features/radio-particle-jets...
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
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NGC 5128 - Centaurus A is a galaxy in the constellation of Centaurus. It was discovered in 1826 by Scottish astronomer James Dunlop from his home in Parramatta, New South Wales, Australia. It is approximately 10–16 million light-years away,and is one of the closest radio galaxies to Earth. It is the fifth-brightest in the sky, but is only visible from the southern hemisphere and low northern latitudes.
At the center of the galaxy is a supermassive black hole with a mass 55 million times greater than the our Sun.
Taken using the ASI Seestar S50 on an almost full moon night from an area out the back from where I live. It is not quite a dark site, but no street lights and mostly farm land around.
Stacked and processed using PixInsight.
Equipment Used:
SeeStar S50
Inbuilt Duo Band Filter
Exposure Details:
18 x 10 second exposures
equipmnent: Sigma 40mmF1.4 DG HSM Art and Canon EOS 6D-sp4, modified by Seo-san on Takahashi EM-200FG-Temma 2Z-BL, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, Starlight Xpress Lodestar Autoguider, and PHD2 Guiding
exposure: 12 times x 15 minutes, 5 x 4 min, 5 x 1 min, and 5x 15 seconds at ISO 1,600 and f/4.0
site: 2,430m above sea level at lat. 24 39 52 South and long. 70 16 11 West near Cerro Armazones Chile
Colour composite image of Centaurus A, revealing the lobes and jets emanating from the active galaxy's central black hole. This is a composite of images obtained with three instruments, operating at very different wavelengths. The 870-micron submillimetre data, from LABOCA on APEX, are shown in orange. X-ray data from the Chandra X-ray Observatory are shown in blue. Visible light data from the Wide Field Imager (WFI) on the MPG/ESO 2.2 m telescope located at La Silla, Chile, show the stars and the galaxy's characteristic dust lane in close to "true colour".
Centaurus A
Credit: Giuseppe Donatiello
(remote data set)
AR: 201,385° DEC: -43,061°
NGC 5128 or Centaurus A is one of the closest radio galaxies to Earth at a distance of approximately 12 million light-years. It has a distinctive central dust lane and an active galactic nucleus containing a supermassive black hole creating a relativistic jet which emits in visual, radio and X-ray wavelengths.
It is an unusual galaxy, possibly the result of a merger between an elliptical galaxy and a smaller spiral galaxy.
Long before the term "citizen science" was coined, the field of astronomy has benefited from countless men and women who
study the sky in their spare time. These amateur astronomers devote hours exploring the cosmos through a variety of
telescopes that they acquire, maintain, and improve on their own. Some of these amateur astronomers specialize in capturing
what is seen through their telescopes in images and are astrophotographers.
What happens when the work of amateur astronomers and astrophotographers is combined with the data from some of the world's
most sophisticated space telescopes? Collaborations between professional and amateur astronomers reveal the possibilities and
are intended to raise interest and awareness among the community of the wealth of data publicly available in NASA's various
mission archives. This effort is particularly appropriate for this month because April marks Global Astronomy Month, the
world's largest global celebration of astronomy.
The images in this quartet of galaxies represent a sample of composites created with X-ray data from NASA's Chandra X-ray
Observatory, infrared data from the Spitzer Space Telescope, and optical data collected by an amateur astronomer. In these
images, the X-rays from Chandra are shown in pink, infrared emission from Spitzer is red, and the optical data are in red,
green, and blue. The two astrophotographers who donated their images for these four images -- Detlef Hartmann and Rolf Olsen
-- used their personal telescopes of 17.5 inches and 10 inches in diameter respectively. More details on how these images
were made can be found in this blog post.
Starting in the upper left and moving clockwise, the galaxies are M101 (the "Pinwheel Galaxy"), M81, Centaurus A, and M51
(the "Whirlpool Galaxy"). M101 is a spiral galaxy like our Milky Way, but about 70% bigger. It is located about 21 million
light years from Earth. M81 is a spiral galaxy about 12 million light years away that is both relatively large in the sky and
bright, making it a frequent target for both amateur and professional astronomers. Centaurus A is the fifth brightest galaxy
in the sky -- making it an ideal target for amateur astronomers -- and is famous for the dust lane across its middle and a
giant jet blasting away from the supermassive black hole at its center. Finally, M51 is another spiral galaxy, about 30
million light years away, that is in the process of merging with a smaller galaxy seen to its upper left.
For many amateur astronomers and astrophotographers, a main goal of their efforts is to observe and share the wonders of the
Universe. However, the long exposures of these objects may help to reveal phenomena that may otherwise be missed in the
relatively short snapshots taken by major telescopes, which are tightly scheduled and often oversubscribed by professional
astronomers. Therefore, projects like this Astro Pro-Am collaboration might prove useful not only for producing spectacular
images, but also contributing to the knowledge of what is happening in each of these cosmic vistas.
NASA's Marshall Space Flight Center in Huntsville, Ala., manages the Chandra program for NASA's Science Mission Directorate
in Washington. The Smithsonian Astrophysical Observatory in Cambridge, Mass., controls Chandra's science and flight
operations.
Original caption/more images: www.nasa.gov/chandra.harvard.edu/photo/2014/proam/
Image credit: Image credit: X-ray: NASA/CXC/SAO; Optical: Detlef Hartmann; Infrared: NASA/JPL-Caltech
Read more about Chandra:
p.s. You can see all of our Chandra photos in the Chandra Group in Flickr at: www.flickr.com/groups/chandranasa/ We'd love to have you as a member!
_____________________________________________
These official NASA photographs are being made available for publication by news organizations and/or for personal use
printing by the subject(s) of the photographs. The photographs may not be used in materials, advertisements, products, or
promotions that in any way suggest approval or endorsement by NASA. All Images used must be credited. For information on
usage rights please visit: www.nasa.gov/audience/formedia/features/MP_Photo_Guidelin...
Just weeks after NASA’s Chandra X-ray Observatory began operations in 1999, the telescope pointed at Centaurus A (Cen A, for short). This galaxy, at a distance of about 12 million light years from Earth, contains a gargantuan jet blasting away from a central supermassive black hole.
Since then, Chandra has returned its attention to this galaxy, each time gathering more data. And, like an old family photo that has been digitally restored, new processing techniques are providing astronomers with a new look at this old galactic friend.
This new image of Cen A contains data from observations, equivalent to over nine and a half days worth of time, taken between 1999 and 2012. In this image, the lowest-energy X-rays Chandra detects are in red, while the medium-energy X-rays are green, and the highest-energy ones are blue.
As in all of Chandra’s images of Cen A, this one shows the spectacular jet of outflowing material – seen pointing from the middle to the upper left – that is generated by the giant black hole at the galaxy’s center. This new high-energy snapshot of Cen A also highlights a dust lane that wraps around the waist of the galaxy. Astronomers think this feature is a remnant of a collision that Cen A experienced with a smaller galaxy millions of years ago.
The data housed in Chandra’s extensive archive on Cen A provide a rich resource for a wide range of scientific investigations. For example, researchers published findings in 2013 on the point-like X-ray sources in Cen A. Most of these sources are systems where a compact object – either a black hole or a neutron star – is pulling gas from an orbiting companion star. These compact objects form by the collapse of massive stars, with black holes resulting from heavier stars than neutron stars.
The results suggested that nearly all of the compact objects had masses that fell into two categories: either less than twice that of the sun, or more than five times as massive as the sun. These two groups correspond to neutron stars and black holes.
This mass gap may tell us about the way massive stars explode. Scientists expect an upper limit on the most massive neutron stars, up to twice the mass of the sun. What is puzzling is that the smallest black holes appear to weigh in at about five times the mass of the sun. Stars are observed to have a continual range of masses, and so in terms of their progeny’s weight we would expect black holes to carry on where neutron stars left off.
Although this mass gap between neutron stars and black holes has been seen in our galaxy, the Milky Way, this new Cen A result provides the first hints that the gap occurs in more distant galaxies. If it turns out to be ubiquitous, it may mean that a special, rapid type of stellar collapse is required in some supernova explosions.
The results described here were published in the April 1st, 2013 issue of The Astrophysical Journal and are available online. Mark Burke led the work when he was at the University of Birmingham in the UK and he is now at L'Institut de Recherche en Astrophysique et Planetologie in Toulouse, France. NASA's Marshall Space Flight Center in Huntsville, Ala., manages the Chandra program for NASA's Science Mission Directorate in Washington. The Smithsonian Astrophysical Observatory in Cambridge, Mass., controls Chandra's science and flight operations
Image credit: X-ray: NASA/CXC/CfA/J.Forbrich et al.; Infrared: NASA/SSC/CfA/IRAC GTO Team
Original image: chandra.harvard.edu/photo/2014/cena/
Read more about Chandra:
p.s. You can see all of our Chandra photos in the Chandra Group in Flickr at: www.flickr.com/groups/chandranasa/ We'd love to have you as a member!
_____________________________________________
These official NASA photographs are being made available for publication by news organizations and/or for personal use printing by the subject(s) of the photographs. The photographs may not be used in materials, advertisements, products, or promotions that in any way suggest approval or endorsement by NASA. All Images used must be credited. For information on usage rights please visit: www.nasa.gov/audience/formedia/features/MP_Photo_Guidelin...
NGC5128 - Centaurus A widefield
Takahashi FSQ ED 106mm f/5.0
SBIG STL 11000 M CCD
Luminance only single 300 second exposure
Dans la constellation du Centaure (Centaurus), à 13,7 millions d'a.l. de la Terre, la galaxie lenticulaire Centaurus A (NGC 5128) est l'une des radiogalaxies les plus proches et la 5ème la plus brillante du ciel. Un jet relativiste extrait de l'énergie à proximité de ce qui supposé être un trou noir supermassif, situé au centre de la galaxie et responsable des émissions dans le domaine des rayons X et radio. Ses zones internes se déplacent à environ la moitié de la vitesse de la lumière. Les rayons X sont produits plus loin lorsque le jet heurte le gaz environnant en produisant des particules de haute énergie.
Obscurcie par une bande de poussières, sa morphologie inhabituelle est généralement expliquée comme étant le résultat d'une fusion entre deux galaxies plus petites. Son bulbe est constitué principalement d'étoiles rouges évoluées, le disque de poussières étant cependant le siège d'une formation d'étoiles plus récentes, plus de 100 régions de formation d'étoiles y ayant été identifiées (cf. wikipédia).
Pour situer l'astre dans sa constellation :
www.flickr.com/photos/7208148@N02/48917597476/in/datepost...
This image shows the stunning elliptical galaxy Centaurus A. Recently, astronomers have used the NASA/ESA Hubble Space Telescope to probe the outskirts of this galaxy to learn more about its dim halo of stars.
The galaxy's halo of stars has been found to reach much further than expected, extending across 4 degrees in the sky - equivalent to eight times the apparent width of the Moon, or almost twice the width of this image.
This image is a composite of images from Digitized Sky Survey 2 (DSS2), the MPG/ESO 2.2-metre telescope, and the NASA/ESA Hubble Space Telescope's Advanced Camera for Surveys (ACS).
The areas probed by Hubble are identified in the annotated version of this image. Hubble's unique capabilities allowed astronomers to analyse the faint stars in the halo.
Image credit: ESA/Hubble, NASA, Digitized Sky Survey, MPG/ESO
Acknowledgement: Davide de Martin
This frame was taken with dual narrow band filter, IDAS NB12, but the most importance is not with those hydrogen-alpha emissions.
There exist many striae of dark or hydrogen-alpha clouds flowing in the same oblique direction, from east northeast to west southwest or vice versa against the galactic plane. Who know the reason or mechanism of the large structure. North is up, and east is to the left.
Equipment: Sigma 35mmF1.4 DG HSM Art, IDAS NB12 Dual Narrow Band Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding
Exposure: 16 times x 60 seconds, 16 x 240 sec, and 19 times x 900 - 1,800 seconds at ISO 6,400 and f/3.2
Total exposure time was 10 hours. Data were acquired during four consecutive nights. I tried imaging through five consecutive nights, but the data acquired at first night were discarded due to rotation of ball mount a bit after the night. The frames were different in direction from others gathered at the other four nights. The rotation made it difficult for me to register them together.
The rotation was recorded in the frame containing bright meteor: www.flickr.com/photos/hiroc/53748460722
site: 2,430m above sea level at lat. 24 38 55 South and long. 70 16 52 West near Cerro Armazones Chile
SQML was 21.55 at the night. Ambient temperature was around 6 degrees Celsius or 43 degrees Fahrenheit.
Sometimes known as the Hamburger Galaxy because of its prominent, bisecting dust lanes, this object is one of the closest radio and x-ray emitting galaxies to Earth. Its unusual appearance and behavior was caused by a collision between two galaxies that happened several hundred million years ago (in the cosmic timescale, a short time past).
This photo was taken from California where this galaxy just barely "peeks" over the southern horizon during the winter and spring of each year.
Shown here somewhat dimmed by light pollution, this image was captured using a 5 inch aperture, f/5.2 telescope and a Sony NEX-5N digital camera (ISO 1600, a stack of one hundred and four images each exposed for 30 seconds, producing a total exposure integration time of 52 minutes).
Image registration, integration, and initial processing done with PixInsight v01.08.01.1087 Ripley (x64) with final tweaks in Photoshop CS5.
This photo is best viewed in the Flickr light box.
All rights reserved.
This frame was a mixture of frames taken with and without dual narrow band filter. Density 50% of frame taken with clear filter was on frame taken with dual narrow band filter.
There exist many striae of dark or hydrogen-alpha clouds flowing in the same oblique direction, from east northeast to west southwest or vice versa against the galactic plane. Who know the reason or mechanism of the large structure. North is up, and east is to the left.
Equipment: Sigma 35mmF1.4 DG HSM Art, IDAS NB12 Dual Narrow Band Filter or IDAS clear filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding
Exposure: 16 times x 60 seconds, 16 x 240 sec, and 19 times x 900 - 1,800 seconds at ISO 6,400 and f/3.2 with NB12 and 4 times x 60 seconds, 5 x 240 seconds, and 12 x 600 seconds at ISO 1.600 and f/3.2 with Clear Filter
site: 2,430m above sea level at lat. 24 38 55 South and long. 70 16 52 West near Cerro Armazones Chile
SQML was 21.55 at the night. Ambient temperature was around 6 degrees Celsius or 43 degrees Fahrenheit.
Centaurus A
Credit: Giuseppe Donatiello
AR: 201,385° DEC: -43,061°
NGC 5128 or Centaurus A is one of the closest radio galaxies to Earth at a distance of approximately 12 million light-years. It has a distinctive central dust lane and an active galactic nucleus containing a supermassive black hole creating a relativistic jet which emits in visual, radio and X-ray wavelengths.
It is an unusual galaxy, possibly the result of a merger between an elliptical galaxy and a smaller spiral galaxy.
NASA image release May 20, 2011..This composite of visible, microwave (orange) and X-ray (blue) data reveals the jets and radio-emitting lobes emanating from Centaurus A's central black hole. Credit: ESO/WFI (visible); MPIfR/ESO/APEX/A.Weiss et al. (microwave); NASA/CXC/CfA/R.Kraft et al. (X-ray)..To read more go to: www.nasa.gov/topics/universe/features/radio-particle-jets....NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
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I tried StarNet++ v.2.0 GUI version on windows 10 on Lenovo Legion 570i with Core i7 12700H and RTX3050Ti. Processing finished about 5 minutes with Finer tiles box checked. Oxygen III emission areas got clearer. Oxygen III emissions are at 496nm and 501nm in wavelength, and they show a bit bluish green color. All in all, this frame presented unusual view of the area around Coalsack Nebula.
Here is the original: www.flickr.com/photos/hiroc/53754127808
Here is a frame taken without dual narrow band filter:
www.flickr.com/photos/hiroc/53757365074/
Equipment: Sigma 35mmF1.4 DG HSM Art, IDAS NB12 Dual Narrow Band Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding
Exposure: 16 times x 60 seconds, 16 x 240 sec, and 19 times x 900 - 1,800 seconds at ISO 6,400 and f/3.2
site: 2,430m above sea level at lat. 24 38 55 South and long. 70 16 52 West near Cerro Armazones Chile
SQML was 21.55 at the night. Ambient temperature was around 6 degrees Celsius or 43 degrees Fahrenheit.
This is a wide field shot of the region of sky around Centaurus. The great globular cluster Omega Centauri dominates the scene. To the right is the Centaurus A, a large elliptical galaxy only about 10-16 million light years away. It is the 5th brightest galaxy in the sky. At the bottom left on the image is the galaxy with the designation of NGC 4945. A barred spiral galaxy it is approx 12 million light years from us. These are not the only galaxies in this image, at 100% you will notice many faint fuzzies dotted throughout it.
This image is made up of 36 x 3 minute exposures adding up to almost 2 hours of exposure time. Taken with the Canon 6D and 70-200mm f4L IS lens at f5.6 ISO3200. Captured at Katoomba Airfield on 20/06/2015. Temp was approx 2 degree Celsius.
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Caldwell 77, also cataloged as NGC 5128 and commonly called Centaurus A, is a peculiar elliptical galaxy. Centaurus A is apparently the result of a collision between two otherwise normal galaxies, which led to a fantastic jumble of star clusters and dark, imposing dust lanes. Near the galaxy's center, leftover cosmic debris is steadily being consumed by a central supermassive black hole, making Centaurus A something astronomers call an active galaxy. As in other active galaxies, the black hole’s feeding process generates bursts of radio, X-ray, and gamma-ray light.
“Only” about 11 million light-years away (not far in cosmic terms), Centaurus A is the closest active galaxy to Earth. The galaxy is about 60,000 light-years wide, but this Hubble image zooms in on a region that is about 8,500 light-years wide. The image combines observations taken in visible, infrared, and ultraviolet light using Hubble’s Wide Field Camera 3 in 2010. Hubble’s observations of Centaurus A have provided insights into star formation in the galaxy, peering into regions typically obscured by dust and revealing the vibrant glow of young, blue star clusters. Using its infrared vision, Hubble also discovered that a tilted disk of hot gas 130 light-years across is encircling the black hole at the heart of Centaurus A, which is likely supplying material to a smaller, inner accretion disk that feeds the black hole. In addition, astronomers have used Hubble to probe the galaxy’s outskirts, finding that Centaurus A’s vast halo of stars extends much farther out than previously imagined.
In 1986, Centaurus A got the world’s attention when amateur astronomer Robert Evans discovered a Type Ia supernova in the bizarre galaxy. Supernovae like this one erupt after a compact star called a white dwarf siphons material off of a companion star, resulting in an uncontrolled fusion reaction that ultimately detonates the white dwarf. Since then, Centaurus A has produced just one more known supernova, observed in 2016.
Centaurus A was discovered by astronomer James Dunlop in 1826. It is the fifth brightest galaxy in the sky, making it an ideal target for amateur astronomers. It is best spotted from the Southern Hemisphere in autumn and can be found in the Centaurus constellation. Northern Hemisphere observers will need to be as far south as possible and look for the galaxy low in the southern sky during late spring. With a magnitude of 6.7, it’s visible in binoculars, but a telescope is recommended for ideal viewing. Through a telescope the galaxy will appear nearly circular, with its prominent, dark dust lane crossing the center.
For more information about Hubble’s observations of Caldwell 77, see:
hubblesite.org/contents/news-releases/2011/news-2011-18.h...
Credit: NASA, ESA and the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration; Acknowledgment: R. O’Connell (University of Virginia) and the WFC3 Scientific Oversight Committee
For Hubble's Caldwell catalog website and information on how to find these objects in the night sky, visit:
Description: Centaurus A is a galaxy well known for a gargantuan jet blasting away from a central supermassive black hole, which is seen in this new Chandra image. This image - where red, medium, and blue show low, medium, and high-energy X-rays respectively - has been processed with new techniques and contains data from observations equivalent to over nine and a half days worth of observing time taken between 1999 and 2012. The data housed in Chandra's extensive archive on Centaurus A provide a rich resource for a wide range of scientific investigations, including a recent study that examines the population and characteristics of black holes and neutron stars throughout the galaxy.
Creator: Chandra X-ray Observatory Center
Record URL: chandra.harvard.edu/photo/2014/cena/
Dans la constellation du Centaure (Centaurus), à 13,7 millions d'a.l. de la Terre, la galaxie lenticulaire Centaurus A (NGC 5128) est l'une des radiogalaxies les plus proches et la 5ème la plus brillante du ciel. Un jet relativiste extrait de l'énergie à proximité de ce qui supposé être un trou noir supermassif, situé au centre de la galaxie et responsable des émissions dans le domaine des rayons X et radio. Ses zones internes se déplacent à environ la moitié de la vitesse de la lumière. Les rayons X sont produits plus loin lorsque le jet heurte le gaz environnant en produisant des particules de haute énergie.
Obscurcie par une bande de poussières, sa morphologie inhabituelle est généralement expliquée comme étant le résultat d'une fusion entre deux galaxies plus petites. Son bulbe est constitué principalement d'étoiles rouges évoluées, le disque de poussières étant cependant le siège d'une formation d'étoiles plus récentes, plus de 100 régions de formation d'étoiles y ayant été identifiées (cf. wikipédia).
Pour situer l'astre dans sa constellation :
www.flickr.com/photos/7208148@N02/48917597476/in/datepost...
Telescope:
TS130 f5.7
Mount:
Avalon Linear
Main camera:
Atik 460EX mono
Filters: Baader RGB
Autoguide:
TS60 + ASI120 Mono
L: 4x300" bin 1x1
R: 10x300" bin 1x1
G: 10x300" bin 1x1
B: 10x300" bin 1x1
Processed with Pixinsight and Photoshop
Captured from El Roque de los Muchachos Observatory
Description: In a long Chandra exposure lasting over seven days, Centaurus A reveals the effects of the supermassive black hole at its center. Opposing jets of high-energy particles are seen extending to the outer reaches of the galaxy, and numerous smaller black holes in binary star systems are also visible. In this image, low-energy X-rays are colored red, intermediate-energy X-rays are green, and the highest-energy X-rays detected by Chandra are blue. The dark green and blue bands running almost perpendicular to the jet are dust lanes that absorb X-rays, created when Centaurus A merged with another galaxy perhaps 100 million years ago.
Creator/Photographer: Chandra X-ray Observatory
NASA's Chandra X-ray Observatory, which was launched and deployed by Space Shuttle Columbia on July 23, 1999, is the most sophisticated X-ray observatory built to date. The mirrors on Chandra are the largest, most precisely shaped and aligned, and smoothest mirrors ever constructed. Chandra is helping scientists better understand the hot, turbulent regions of space and answer fundamental questions about origin, evolution, and destiny of the Universe. The images Chandra makes are twenty-five times sharper than the best previous X-ray telescope. NASA's Marshall Space Flight Center in Huntsville, Ala., manages the Chandra program for NASA's Science Mission Directorate in Washington. The Smithsonian Astrophysical Observatory controls Chandra science and flight operations from the Chandra X-ray Center in Cambridge, Massachusetts.
Medium: Chandra telescope x-ray
Date: 2008
Persistent URL: chandra.harvard.edu/photo/2008/cena/
Repository: Smithsonian Astrophysical Observatory
Gift line: NASA/CXC/SAO
Accession number: centaurusa
This frame was a mixture of frames taken with and without dual narrow band filter. Density 50% of frame taken with clear filter on frame taken with dual narrow band filter.
There exist many striae of dark or hydrogen-alpha clouds flowing in the same oblique direction, from east northeast to west southwest or vice versa against the galactic plane. Who know the reason or mechanism of the large structure. North is up, and east is to the left.
Equipment: Sigma 35mmF1.4 DG HSM Art, IDAS NB12 Dual Narrow Band Filter or IDAS clear filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding
Exposure: 16 times x 60 seconds, 16 x 240 sec, and 19 times x 900 - 1,800 seconds at ISO 6,400 and f/3.2 with NB12 and 4 times x 60 seconds, 5 x 240 seconds, and 12 x 600 seconds at ISO 1.600 and f/3.2 with Clear Filter
site: 2,430m above sea level at lat. 24 38 55 South and long. 70 16 52 West near Cerro Armazones Chile
SQML was 21.55 at the night. Ambient temperature was around 6 degrees Celsius or 43 degrees Fahrenheit.
Resembling looming rain clouds on a stormy day, dark lanes of dust crisscross the large and unusual galaxy Centaurus A (NGC 5128) as seen in this Hubble close-up of one portion of the strange celestial object. Astronomers describe Centaurus A as having a “peculiar morphology,” very likely the result of a collision between a giant elliptical and a smaller galaxy. At its center, NGC 5128 hosts a supermassive black hole with a mass totaling 55 million suns.
Perhaps more notably, Centaurus A was one of the first extragalactic radio sources ever identified. Subsequent studies have found a powerful twin-lobed jet emanating from its core at extraordinary velocities. The inner parts of the jet have been clocked at moving approximately half the speed of light.
While the jet is not visible in this picture, Hubble’s panchromatic vision — stretching from ultraviolet through near-infrared wavelengths — reveals the vibrant glow of young, blue star clusters, red patches of glowing hydrogen clouds, and a glimpse into regions normally obscured by dust.
For more information, visit: hubblesite.org/image/2858/news_release/2011-18
Credit: NASA, ESA, and the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration
Acknowledgment: R. O'Connell (University of Virginia) and the WFC3 Scientific Oversight Committee
Source: hubblesite.org/newscenter/archive/releases/1998/14/
Retouching: Lightroom 2.1
________________________
Astronomers have obtained an unprecedented look at the nearest example of galactic cannibalism — a massive black hole hidden at the center of a nearby giant galaxy that is feeding on a smaller galaxy in a spectacular collision. Such fireworks were common in the early universe, as galaxies formed and evolved, but are rare today.
The Hubble telescope offers a stunning unprecedented close-up view of a turbulent firestorm of star birth along a nearly edge-on dust disk girdling Centaurus A, the nearest active galaxy to Earth. The picture at upper left shows the entire galaxy. The blue outline represents Hubble's field of view. The larger, central picture is Hubble's close-up view of the galaxy. Brilliant clusters of young blue stars lie along the edge of the dark dust lane. Outside the rift the sky is filled with the soft hazy glow of the galaxy's much older resident population of red giant and red dwarf stars.
This Hubble Space Telescope image offers a close-up look at a nearby example of galactic cannibalism: a massive black hole hidden at the center of a giant galaxy that is devouring a smaller galaxy in a spectacular collision. Such fireworks were common in the early universe, as galaxies formed and evolved, but are more rare today.
A turbulent firestorm of star birth appears along a nearly edge-on dust disk girdling Centaurus A, the nearest active galaxy to Earth. Brilliant clusters of young blue stars lie along the edge of the dark dust lane. Outside the rift the sky is filled with the soft, hazy glow of the galaxy's much older population of red giant and red dwarf stars.
For more information, visit: hubblesite.org/news_release/news/1998-14
Credit: E.J. Schreier (STScI) and NASA
Centaurus A
Credit: ESO/Dss2, Giuseppe Donatiello
AR: 201,385° DEC: -43,061°
NGC 5128 or Centaurus A is one of the closest radio galaxies to Earth at a distance of approximately 12 million light-years. It has a distinctive central dust lane and an active galactic nucleus containing a supermassive black hole creating a relativistic jet which emits in visual, radio and X-ray wavelengths.
It is an unusual galaxy, possibly the result of a merger between an elliptical galaxy and a smaller spiral galaxy.
Edited European Southern Observatory image of the galaxy Centaurus A and its jets from its energetic central black hole.
Original caption: Colour composite image of Centaurus A, revealing the lobes and jets emanating from the active galaxy’s central black hole. This is a composite of images obtained with three instruments, operating at very different wavelengths. The 870-micron submillimetre data, from LABOCA on APEX, are shown in orange. X-ray data from the Chandra X-ray Observatory are shown in blue. Visible light data from the Wide Field Imager (WFI) on the MPG/ESO 2.2 m telescope located at La Silla, Chile, show the stars and the galaxy’s characteristic dust lane in close to "true colour". #L
equipmnent: Sigma 40mmF1.4 DG HSM Art and Canon EOS 6D-sp4, modified by Seo-san on Takahashi EM-200FG-Temma 2Z-BL, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, Starlight Xpress Lodestar Autoguider, and PHD2 Guiding
exposure: 12 times x 15 minutes, 5 x 4 min, 5 x 1 min, and 5x 15 seconds at ISO 1,600 and f/4.0
site: 2,430m above sea level at lat. 24 39 52 South and long. 70 16 11 West near Cerro Armazones Chile
NGC 4945 in Centaurus
Credit: ESO/Dss2, Giuseppe Donatiello
J2000 RA 13h 05m 27.5s Dec −49° 28′ 06″ FOV 60x60 arcmin
NGC 4945 is a barred spiral galaxy at 11.7 milion light-year in Centaurus, and located near the star Zeta Cen.
NGC 4945 is one of the brightest galaxies of the CentaurusA/M83 Group, a large, nearby group of galaxies.
NGC 4945 is at the center in this image, below ESO 219-28 and very weak, in contact with the Ksi 2 Cen centric at the bottom, ESO 219-27. Very faintly visible, even other weak background objects.
This is a composition of DSS plates.
This frame was taken with clear filter without dual narrow band filter. Focus got off in longer exposure frames.
Equipment: Sigma 35mmF1.4 DG HSM Art, IDAS Clear Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding
Exposure: 4 times x 60 seconds, 5 x 240 sec, and 12 times x 600 seconds at ISO 1,600 and f/3.2
site: 2,430m above sea level at lat. 24 38 55 South and long. 70 16 52 West near Cerro Armazones Chile
SQML was 21.55 at the night. Ambient temperature was around 6 degrees Celsius or 43 degrees Fahrenheit.
This frame was taken with dual narrow band filter, IDAS NB12, but the most importance is not with those hydrogen-alpha emissions.
There exist many striae of dark or hydrogen-alpha clouds flowing in the same oblique direction, from east northeast to west southwest or vice versa against the galactic plane. Who know the reason or mechanism of the large structure. North is up, and east is to the left.
Equipment: Sigma 35mmF1.4 DG HSM Art, IDAS NB12 Dual Narrow Band Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding
Exposure: 16 times x 60 seconds, 16 x 240 sec, and 19 times x 900 - 1,800 seconds at ISO 6,400 and f/3.2
Total exposure time was 10 hours. Data were acquired during four consecutive nights. I tried imaging through five consecutive nights, but the data acquired at first night were discarded due to rotation of ball mount a bit after the night. The frames were different in direction from others gathered at the other four nights. The rotation made it difficult for me to register them together.
The rotation was recorded in the frame containing bright meteor: www.flickr.com/photos/hiroc/53748460722
site: 2,430m above sea level at lat. 24 38 55 South and long. 70 16 52 West near Cerro Armazones Chile
SQML was 21.55 at the night. Ambient temperature was around 6 degrees Celsius or 43 degrees Fahrenheit.
Source: hubblesite.org/newscenter/archive/releases/2011/18/
Retouching: Lightroom 3
___________________
Resembling looming rain clouds on a stormy day, dark lanes of dust crisscross the giant elliptical galaxy Centaurus A. Hubble's panchromatic vision, stretching from ultraviolet through near-infrared wavelengths, reveals the vibrant glow of young, blue star clusters and a glimpse into regions normally obscured by the dust.
The Neighbourhood of Omega Centauri
Omega Centauri or NGC 5139, the largest globular cluster of our milky galaxy nearly 15000 LY away and containing more than 10 million stars. (Seen at the centre of the picture)
Accompanying it are few other deep sky objects as listed:
1. NGC 5128 or Centaurus A Galaxy
2. NGC 4945 or The Tweezers Galaxy
3. NGC 5286 Globular Cluster
This is a single exposure cropped shot from Canon 700D/50mm F1.8 tracked on AstroTrac.
Exif: 60secs/F2.8/ISO1600
This image shows the stunning elliptical galaxy Centaurus A. Recently, astronomers have used the NASA/ESA Hubble Space Telescope to probe the outskirts of this galaxy to learn more about its dim halo of stars.
More information: www.spacetelescope.org/images/heic1415a/
Credit:
Image credit: ESA/Hubble, NASA, Digitized Sky Survey, MPG/ESO
Acknowledgement: Davide de Martin
NGC5128. Centaurus A galaxy
Playing with iTelescope.net free features. Remote telescope enables me to still capturing when the weather in Germany has no mercy)
Details:
Lights: 17x150s
No darks. No flats.
Equipment:
-T69 instance on iTelescope.net
-OTA: Celestron RASA 11" 279mm
-DSS + Pixinsight + Adobe Photoshop + Topaz DeNoise AI
Annotated version:
nova.astrometry.net/user_images/7275114#annotated
Follow me on Twitter: @elbuscadorpolar
Centaurus A is a pair of almost-merged galaxies with a black hole at the core. Twin beams of matter and energy blast outward from it, creating this odd and beautiful view.
Credit: Credit: ESO/WFI (Optical); MPIfR/ESO/APEX/A.Weiss et al. (Submillimetre); NASA/CXC/CfA/R.Kraft et al. (X-ray)
Happy 10 years, Chandra! This image from 2001 shows elliptical galaxy Centaurus A, which may harbor a black hole in its midst.
First observed by Chandra in September 1999, Centaurus A was an early demonstration of the spectacular science this powerful X-ray observatory could do. Astronomers continue to use Chandra to study this elliptical galaxy (also known as NGC 5128) that contains a spectacular jet and a core teeming with X-ray emitting sources.
This Chandra image of Cen A shows a bright central source: the Active Galactic Nucleus (AGN) suspected of harboring a supermassive black hole. Chandra also detects a jet emanating from the core and numerous point-like X-ray sources, all bathed in diffuse X-rays produced by several-million-degree gas that fills the galaxy. A team of scientists, led by Ralph Kraft of the Smithsonian Astrophysical Observatory, has begun to study each of these components of X-ray emission from Cen A. The unprecedented imaging resolution of Chandra allows scientists for the first time to clearly resolve each of these distinct components of the X-ray emission for detailed study.
Over 200 point-like X-ray sources have been identified and studied in Cen A. Because of their distribution around the center of the galaxy, it is believed that most of these sources are X-ray binaries in which a neutron star or stellar-sized black hole is accreting matter from a nearby companion star. A few may be supernova remnants or unrelated, more distant background galaxies. Comparison of Cen A's X-ray binary population with populations in other galaxies is important for understanding the evolutionary history of galaxies. It is becoming clear that there are significant variations in the X-ray binary populations of otherwise similar galaxies. The reason for this is uncertain, but may be related to differences in the star formation history or mechanisms for the creation of X-ray binaries. The observation of the jet has provided scientists some surprises as well. The X-ray structure of the jet has been shown to be significantly different than the radio structure, and the X-ray jet is much more uneven than originally believed. These results have cast doubts on simple models of how the energetic particles ejected from the active nucleus travel along the jet.
The Cen A image was created from Chandra observations taken on December 5, 1999 (35,900 seconds) and May 17, 2000 (36, 500 seconds) with the Advanced CCD Imaging Spectrometer (ACIS) as part of the HRC GTO program. Other members of this research team include Steve Murray (PI), Bill Forman, and Christine Jones (Smithsonian Astrophysical Observatory), Martin Hardcastle and Diana Worrall (Bristol University UK), and Julia Kregenow (Wittenberg University).
Image credit: NASA/SAO/R.Kraft et al.
Read more about this image: www.chandra.harvard.edu/photo/2001/0157blue/
Read more about Chandra: www.nasa.gov/chandra
p.s. You can see all of our Chandra photos in the Chandra Group in Flickr at: www.flickr.com/groups/chandranasa/ We'd love to have you as a member!