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Space images thread
- Thread starter Drone
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New galaxy discovered!
~ 359 million ly away from Earth, there is a galaxy (PGC 1000714) that doesn't look quite like anything astronomers have observed before. New research provides a first description of a well-defined elliptical-like core surrounded by two circular rings - a galaxy that appears to belong to a class of rarely observed, Hoag-type galaxies.
While the researchers found a blue and young (0.13 billion years) outer ring, surrounding a red and older (5.5 billion years) central core, they were surprised to uncover evidence for second inner ring around the central body. To document this second ring, researchers took their images and subtracted out a model of the core. This allowed them to observe and measure the obscured, second inner ring structure.
~ 359 million ly away from Earth, there is a galaxy (PGC 1000714) that doesn't look quite like anything astronomers have observed before. New research provides a first description of a well-defined elliptical-like core surrounded by two circular rings - a galaxy that appears to belong to a class of rarely observed, Hoag-type galaxies.
While the researchers found a blue and young (0.13 billion years) outer ring, surrounding a red and older (5.5 billion years) central core, they were surprised to uncover evidence for second inner ring around the central body. To document this second ring, researchers took their images and subtracted out a model of the core. This allowed them to observe and measure the obscured, second inner ring structure.
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This graphic shows all the cosmic light sources in the sky that are included in the NASA/IPAC Extragalactic Database (NED), an online repository containing information on > 100 million galaxies.
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Earth and moon – as seen from 127 million miles away by NASA's Mars orbiter
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Herschel crater on Saturn's moon Mimas
The image was taken with the Cassini spacecraft narrow-angle camera on Oct. 22, 2016 using a combination of spectral filters which preferentially admits wavelengths of ultraviolet light centered at 338 nanometers.
The view was acquired at a distance of approximately 115,000 miles (185,000 kilometers) from Mimas and at a Sun-Mimas-spacecraft, or phase, angle of 20 degrees. Image scale is 3,300 feet (1 kilometer) per pixel.
The image was taken with the Cassini spacecraft narrow-angle camera on Oct. 22, 2016 using a combination of spectral filters which preferentially admits wavelengths of ultraviolet light centered at 338 nanometers.
The view was acquired at a distance of approximately 115,000 miles (185,000 kilometers) from Mimas and at a Sun-Mimas-spacecraft, or phase, angle of 20 degrees. Image scale is 3,300 feet (1 kilometer) per pixel.
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Ah, they dubbed it "Saturn's 'Death Star moon'" https://www.cnet.com/news/nasa-saturn-moon-mimas-death-star-wars-cassini/
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Cat's Paw Nebula (NGC 6334, upper right [5500 ly away from Earth]) and the Lobster Nebula (NGC 6357, lower left [8000 ly away]).
Both are in the constellation of Scorpius, near the tip of its stinging tail.
These dramatic objects are regions of active star formation where the hot young stars are causing the surrounding hydrogen gas to glow red.
With ~ 2 billion pixels this is one of the largest images ever released by ESO.
Download original 5.4 GB image
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beautiful
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Located in the Large Magellanic Cloud, one of the Milky Way’s satellite galaxies, SN 1987A was the nearest supernova explosion observed in centuries and it quickly became the best studied supernova of all time.
The stellar explosion blazed with the power of 100 million suns for several months after its discovery on 23 February 1987.