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coma (middle panel) was obtained by means of fitting the surface brightness profile assembled from the observed image on the left. This allowed for the coma to be subtracted, unveiling the point-like glow from the nucleus. Combined with radio telescope data, astronomers arrived at a precise measurement of the nucleus size. That's no small feat from something about 2 billion miles away. Though the nucleus is estimated to be as large as 85 miles across, it is so far away it cannot be resolved by Hubble. Its size is derived from its reflectivity as measured by Hubble. The nucleus is estimated to be as black as charcoal. The nucleus area is gleaned from radio observations.
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coma (middle panel) was obtained by means of fitting the surface brightness profile assembled from the observed image on the left. This allowed for the coma to be subtracted, unveiling the point-like glow from the nucleus. Combined with radio telescope data, astronomers arrived at a precise measurement of the nucleus size. That’s no small feat from something 3 billion miles away. Though the nucleus is estimated to be as large as 85 miles across, it is so far away it cannot be resolved by Hubble. Its size is derived from its reflectivity as measured by Hubble. The nucleus is estimated to be as black as charcoal. The nucleus area is gleaned from radio observations.
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This sequence shows how the nucleus of Comet C/2014 UN271 (Bernardinelli-Bernstein) was isolated from a vast shell of dust and gas surrounding the solid icy nucleus. On the left is a photo of the comet taken by the NASA Hubble Space
Telescope’s Wide Field Camera 3 on January 8, 2022. A model of the
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This sequence shows how the nucleus of Comet C/2014 UN271 (Bernardinelli-Bernstein) was isolated from a vast shell of dust and gas surrounding the solid icy nucleus. On the left is a photo of the comet taken by the NASA Hubble Space
Telescope's Wide Field Camera 3 on January 8, 2022. A model of the
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Uploaded a work by NASA, ESA, Man-To Hui (Macau
University of Science and Technology), David Jewitt (UCLA);<br>Image processing: Alyssa Pagan (STScI) from https://www.nasa.gov/feature/goddard/2022/hubble-confirms-largest-comet-nucleus-ever-seen with
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joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use.
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This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
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states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."
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NASA, ESA, Man-To Hui (Macau
University of Science and Technology), David Jewitt (UCLA);
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Click on a date/time to view the file as it appeared at that time.
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data may be copyrighted if they are not explicitly produced by the
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NASA, ESA, Man-To Hui (Macau
University), David Jewitt (UCLA)
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Comet C/2014 UN271 Nucleus Is
Isolated From Surrounding Coma
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Space
Telescope Science Institute Office of Public Outreach
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Add a one-line explanation of what this file represents
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in the United States because it was solely created by
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
