File:Elliptical galaxy NGC 474.jpg
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| Descrizione |
Español: Las galaxias elípticas se caracterizan generalmente por su apariencia relativamente suave en comparación con las galaxias espirales (una de las cuales está a la derecha), las que tienen una estructura más floculante que está entrelazada con líneas de polvo y brazos espirales. NGC 474 se encuentra a una distancia de unos 100 millones de años luz en la constelación de Piscis. Esta imagen muestra estructuras inusuales alrededor de NGC 474 caracterizadas como olas de marea y estructuras en forma de conchas formadas por cientos de millones de estrellas. Estas características se deben a fusiones recientes (en los últimos mil millones de años) o interacciones cercanas de NGC 474 con galaxias enanas más pequeñas que atrae.
Esta imagen es un extracto de Dark Energy Survey que publicó una colección pública masiva de datos astronómicos e imágenes calibradas de seis años de trabajo. Dark Energy Survey es una colaboración global que incluye Fermi National Accelerator Laboratory (Fermilab), National Center for Supercomputing Applications (NCSA) y NOIRLab de NSF. La imagen fue tomada con la Cámara de Energía Oscura en el Telescopio Víctor M. Blanco de 4 metros La calidad del estudio se puede apreciar sumergiéndose en la versión ampliable de este extracto más amplio que muestra un tapiz de fondo de miles de galaxias distantes.English: Elliptical galaxies are generally characterized by their relatively smooth appearance when compared with spiral galaxies (one of which is to the left), which have more flocculent structures interwoven with dust lanes and spiral arms. NGC 474 is at a distance of about 100 million light-years in the constellation of Pisces. This image shows unusual structures around NGC 474 characterized as tidal tails and shell-like structures made up of hundreds of millions of stars. These features are due to recent mergers (within the last billion years) or close interactions with smaller infalling dwarf galaxies.
This image is an excerpt from the Dark Energy Survey, which has released a massive, public collection of astronomical data and calibrated images from six years of work. The Dark Energy Survey is a global collaboration that includes the Department of Energy's (DOE) Fermi National Accelerator Laboratory (Fermilab), the National Center for Supercomputing Applications (NCSA), and NSF’s NOIRLab. The image was taken with the Dark Energy Camera, fabricated by DOE, on the Víctor M. Blanco 4-meter Telescope. The quality of the survey can be appreciated by diving into the zoomable version of this wider excerpt showing a background tapestry of thousands of distant galaxies. |
| Data | |
| Fonte | https://noirlab.edu/public/es/images/noirlab2106a/ |
| Autore |
DES/DOE/Fermilab/NCSA & CTIO/NOIRLab/NSF/AURA Acknowledgments: Image processing: DES, Jen Miller (Gemini Observatory/NSF's NOIRLab), Travis Rector (University of Alaska Anchorage), Mahdi Zamani & Davide de Martin |
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This media was created by the National Optical-Infrared Astronomy Research Laboratory (NOIRLab).
Their website states: "Unless specifically noted, the images, videos, and music distributed on the public NOIRLab website, along with the texts of press releases, announcements, images of the week and captions; are licensed under a Creative Commons Attribution 4.0 International License, and may on a non-exclusive basis be reproduced without fee provided the credit is clear and visible." To the uploader: You must provide a link (URL) to the original file and the authorship information if available. |
  Questo file è disponibile in base alla licenza Creative Commons Attribuzione 4.0 Internazionale
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| attuale | 21:11, 3 feb 2021 | | 5 513 × 3 038 (3,61 MB) | Pandreve | Uploaded a work by DES/DOE/Fermilab/NCSA & CTIO/NOIRLab/NSF/AURA Acknowledgments: Image processing: DES, Jen Miller (Gemini Observatory/NSF's NOIRLab), Travis Rector (University of Alaska Anchorage), Mahdi Zamani & Davide de Martin from https://noirlab.edu/public/es/images/noirlab2106a/ with UploadWizard |
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