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Black hole pairs found in distant merging galaxies
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IMAGE: This illustration imagines what the distant object nicknamed Farfarout might look like in the outer reaches of our Solar System. The most distant object yet discovered in our Solar System,. view more
Credit: NOIRLab/NSF/AURA/J. da Silva
With the help of the international Gemini Observatory, a Program of NSF s NOIRLab, and other ground-based telescopes, astronomers have confirmed that a faint object discovered in 2018 and nicknamed Farfarout is indeed the most distant object yet found in our Solar System. The object has just received its designation from the International Astronomical Union.
Farfarout was first spotted in January 2018 by the Subaru Telescope, located on Maunakea in Hawai i. Its discoverers could tell it was very far away, but they weren t sure exactly how far. They needed more observations.
The Spiral of the Southern Pinwheel
A camera designed to reveal the deepest secrets of our Universe captures the Southern Pinwheel galaxy in glorious detail
CosmoView Episode 21: The Spiral of the Southern Pinwheel
CTIO/NOIRLab/DOE/NSF/AURA
Acknowledgment: M. Soraisam (University of Illinois)
Image processing: Travis Rector (University of Alaska Anchorage), Mahdi Zamani & Davide de Martin
Nicknamed the Southern Pinwheel, Messier 83 (or NGC 5236) is a stunning face-on spiral galaxy located about 15 million light-years away in the southern constellation of Hydra. Its spiral arms are lined with dark lanes of dust and peppered with reddish, star-forming clouds of hydrogen gas. One of the deepest images ever taken of the Southern Pinwheel (combining more than 11 hours of exposure time), this view was captured by the Dark Energy Camera (DECam), which was built by the US Department of Energy (DOE) and is mounted on the Víctor M. Blanco 4-meter Telescope at Cerro Tololo Inter-Americ
DOE/Fermi National Accelerator Laboratory
Shown here is the elliptical galaxy NGC 474 with star shells. Elliptical galaxies are characterized by their relatively smooth appearance as compared with spiral galaxies, one of which is to the left of NGC 474, which is oriented with South to the top and West to the left. The colorful neighboring spiral (NGC 470) has characteristic flocculent structure interwoven with dust lanes and spiral arms. NGC 474 is at a distance of about 31 megaparsecs (100 million light-years) from the sun in the constellation of Pisces. The region surrounding NGC 474 shows unusual structures characterized as tidal tails or shells of stars made up of hundreds of millions of stars. These features are likely due to recent (within the last billion years) mergers of smaller galaxies into the main body of NGC 474 or close passages of nearby galaxies, such as the NGC 470 spiral. For coordinate information, visit the NOIRLab webpage for this photo. (Photo: DES/NOIRLab
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