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The Large megallanic cloud. Visible in the southern hemisphere very close to the celestial south pole. This cloud is in fact a is a satellite galaxy of the Milky Way. You need to be in a fairly dark area well away from city lights to see this nebula, even then it will appear as a barely visible faint smudge. It was so clear that night and the brilliance of the stars were absolutely out of this world!
I took 9 shots at ~61 secs each, totaling 559 secs of exposure using my home built star tracker. Unfortunately my focus was ever so slightly off. So I will have to go back to redo them some time. I stacked in Sequator, denoised in DxO and refined in Affinity Photo.
The milky way stretching up over the camp site at Lake Pukaki. Also prominent are the Large and Small Megallanic Clouds, off to the right and (about 200,000 light years away).
I'm not sure I've been anywhere where quite so many stars have been visible to the naked eye, so I did a bit of experimenting with the camera. In the end, it was a case of just turning everything up to maximum (25 second exposure at f/2.8 and ISO 6,400).
The last time I tried this, in England, all I got was the glare from the nearest town - eight miles away.
(Oh, and that's our camper-van on the right).
Several million young stars are vying for attention in this NASA Hubble Space Telescope image of a raucous stellar breeding ground in 30 Doradus, located in the heart of the Tarantula Nebula. Early astronomers nicknamed the nebula because its glowing filaments resemble spider legs.
30 Doradus is the brightest star-forming region visible in a neighboring galaxy and home to the most massive stars ever seen. The nebula resides 170,000 light-years away in the Large Magellanic Cloud, a small, satellite galaxy of our Milky Way. No known star-forming region in our galaxy is as large or as prolific as 30 Doradus.
The composite image comprises one of the largest mosaics ever assembled from Hubble photos and includes observations taken by Hubble's Wide Field Camera 3 and Advanced Camera for Surveys. The Hubble image is combined with ground-based data of the Tarantula Nebula, taken with the European Southern Observatory's 2.2-meter telescope in La Silla, Chile. NASA and the Space Telescope Science Institute released the image to celebrate Hubble's 22nd anniversary.
Collectively, the stars in this image are millions of times more massive than our Sun. The image is roughly 650 light-years across and contains some rambunctious stars, from one of the fastest rotating stars to the speediest and most massive runaway star.
The nebula is close enough to Earth that Hubble can resolve individual stars, giving astronomers important information about the stars' birth and evolution. Many small galaxies have more spectacular starbursts, but the Large Magellanic Cloud's 30 Doradus is one of the only extragalactic star-forming regions that astronomers can study in so much detail. The star-birthing frenzy in 30 Doradus may be partly fueled by its close proximity to its companion galaxy, the Small Magellanic Cloud.
The image reveals the stages of star birth, from embryonic stars a few thousand years old still wrapped in cocoons of dark gas to behemoths that die young in supernova explosions. 30 Doradus is a star-forming factory, churning out stars at a furious pace over millions of years. Hubble shows star clusters of various ages, from about 2 million to about 25 million years old.
The region's sparkling centerpiece is a giant, young star cluster (left of center) named NGC 2070, only 2 million years old. Its stellar inhabitants number roughly 500,000. The cluster is a hotbed for young, massive stars. Its dense core, known as R136, is packed with some of the heftiest stars found in the nearby universe, weighing more than 100 times the mass of our Sun.
The massive stars are carving deep cavities in the surrounding material by unleashing a torrent of ultraviolet light, which is etching away the enveloping hydrogen gas cloud in which the stars were born. The image reveals a fantasy landscape of pillars, ridges, and valleys. Besides sculpting the gaseous terrain, the brilliant stars also may be triggering a successive generation of offspring. When the radiation hits dense walls of gas, it creates shocks, which may be generating a new wave of star birth.
The colors represent the hot gas that dominates regions of the image. Red signifies hydrogen gas and blue, oxygen. Hubble imaged 30 separate fields, 15 with each camera. Both cameras were making observations at the same time. Hubble made the observations in October 2011.
For more information, visit:
hubblesite.org/contents/news-releases/2012/news-2012-01.html
Credit: NASA, ESA, D. Lennon and E. Sabbi (ESA/STScI), J. Anderson, S. E. de Mink, R. van der Marel, T. Sohn, and N. Walborn (STScI), N. Bastian (Excellence Cluster, Munich), L. Bedin (INAF, Padua), E. Bressert (ESO), P. Crowther (University of Sheffield), A. de Koter (University of Amsterdam), C. Evans (UKATC/STFC, Edinburgh), A. Herrero (IAC, Tenerife), N. Langer (AifA, Bonn), I. Platais (JHU), and H. Sana (University of Amsterdam)
A delicate sphere of gas, photographed by NASA's Hubble Space Telescope, floats serenely in the depths of space. The pristine shell, or bubble, is the result of gas that is being shocked by the expanding blast wave from a supernova. Called SNR 0509-67.5 (or SNR 0509 for short), the bubble is the visible remnant of a powerful stellar explosion in the Large Magellanic Cloud (LMC), a small galaxy about 160,000 light-years from Earth.
Ripples in the shell's surface may be caused by either subtle variations in the density of the ambient interstellar gas, or possibly driven from the interior by pieces of the ejecta. The bubble-shaped shroud of gas is 23 light-years across and is expanding at more than 11 million miles per hour (5,000 kilometers per second).
Astronomers have concluded that the explosion was one of an especially energetic and bright variety of supernovae. Known as Type Ia, such supernova events are thought to result from a white dwarf star in a binary system that robs its partner of material, takes on much more mass than it is able to handle, and eventually explodes.
Hubble's Advanced Camera for Surveys observed the supernova remnant on Oct. 28, 2006, with a filter that isolates light from glowing hydrogen seen in the expanding shell. These observations were then combined with visible-light images of the surrounding star field that were imaged with Hubble's Wide Field Camera 3 on Nov. 4, 2010.
With an age of about 400 years as seen from Earth, the supernova might have been visible to southern hemisphere observers around the year 1600. However, there are no known records of a "new star" in the direction of the LMC near that time. A more recent supernova in the LMC, SN 1987A, did catch the eye of Earth viewers and continues to be studied with ground- and space-based telescopes, including Hubble.
For more information, visit:
hubblesite.org/contents/news-releases/2010/news-2010-27.html
Credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA)
Acknowledgment: J. Hughes (Rutgers University)
A Grande Núvem de Magalhães (LMC). Foto feita na expedição do Quilombo Kalunga, com o mestre @Nandotimelapse. Dessa vez com a lente mais aberta e menor distância focal. Aproveitei enquanto fazíamos as saídas para fotografar a Via Láctea e deixei a montagem com a AsiAir fazendo todo o trabalho com minha montagem!
The Large Megallanic Cloud (LMC). The picture was taken in the expedition to the Quilombo Kalunga. This time with a smaller focal lenght and wider aperture. At the same time that I was taking some pictures of the Milky Way, I left the AsiAir doing all the hard work with my mount!
Canon T3i, Lente 50-250mm em 75mm f/5.6, ISO 800. Guiding com Asiair e ASI290mc. Foram 27 Light Frames de 180s, 25 darks and 50 bias, totalizando 1h21m de exposição.
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