File:2014 UN271 Jan 2022 Hubble crop.png
2014_UN271_Jan_2022_Hubble_crop.png (350 × 290 pixels, file size: 137 KB, MIME type: image/png)
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editDescription2014 UN271 Jan 2022 Hubble crop.png |
English: 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 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. |
Date | |
Source | https://www.nasa.gov/feature/goddard/2022/hubble-confirms-largest-comet-nucleus-ever-seen |
Author |
NASA, ESA, Man-To Hui (Macau University of Science and Technology), David Jewitt (UCLA); Image processing: Alyssa Pagan (STScI) |
Licensing
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ||
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current | 00:02, 13 April 2022 | 350 × 290 (137 KB) | Nrco0e (talk | contribs) | 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 UploadWizard |
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Metadata
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Author | Space Telescope Science Institute Office of Public Outreach |
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Image title |
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Copyright holder |
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Short title |
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Credit/Provider | NASA, ESA, Man-To Hui (Macau University), David Jewitt (UCLA) |
Headline | Comet C/2014 UN271 Nucleus Is Isolated From Surrounding Coma |
Source | STScI |
Usage terms | |
Date and time of data generation | 00:00, 29 March 2022 |
Color space | sRGB |
Exif version | 2.31 |
Image width | 1,080 px |
Image height | 360 px |
Bits per component |
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Height | 360 px |
Width | 1,080 px |
Pixel composition | RGB |
Number of components | 3 |
Horizontal resolution | 25.4 dpi |
Vertical resolution | 25.4 dpi |
Contact information | outreach@stsci.edu
3700 San Martin Drive Baltimore, MD, 21218 USA |
Keywords | Comet C/2014 UN271 |
Date and time of digitizing | 03:27, 8 March 2022 |
Software used | Adobe Photoshop 23.2 (Macintosh) |
Date metadata was last modified | 10:28, 29 March 2022 |
File change date and time | 09:54, 29 March 2022 |
Unique ID of original document | xmp.did:f43422ed-b925-41a0-abef-e6038e92bcad |
Copyright status | Copyright status not set |