File:A new planet is born (potw2317a).jpg
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Summary
editDescriptionA new planet is born (potw2317a).jpg |
English: This Picture of the Week shows a newly-formed planet with a mass similar to Jupiter’s orbiting the star HD 169142. The star has a disc around it, and as the protoplanet moves it carves a circular gap in the disc, as seen in the first image. But how was this planet found?Astronomers observed the system over several years with the SPHERE instrument at ESO’s Very Large Telescope in Chile. A new re-analysis of this data, led by Iain Hammond from Monash University in Australia, confirmed the presence of this protoplanet, which moves around the star at a distance somewhat larger than that between Neptune and the Sun. They also identified a spiral wake that the protoplanet leaves behind as it rearranges part of the material in the disc, much like a boat can create a wake as it moves through water.A protoplanet forms during the early stages of a planetary system. It grows as it accretes dust, gas, rocks and other materials that surround its host star, clearing its orbit and creating gaps like the one seen here. The SPHERE instrument is specifically designed to observe these features, blocking light from the star to increase the contrast in the image, and correcting the blur caused by atmospheric turbulence to improve the resolution. By studying the spiral wake and the gap that the protoplanet has created around the star HD 169142, astronomers can learn more about how giant planets such as Jupiter form. |
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Date | 24 April 2023 (upload date) | ||
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Author | ESO/Hammond et al. | ||
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editThis media was created by the European Southern Observatory (ESO).
Their website states: "Unless specifically noted, the images, videos, and music distributed on the public ESO website, along with the texts of press releases, announcements, pictures of the week, blog posts 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. | |
This file is licensed under the Creative Commons Attribution 4.0 International license.
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current | 10:09, 25 April 2023 | 2,984 × 1,046 (461 KB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://cdn.eso.org/images/large/potw2317a.jpg via Commons:Spacemedia |
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Credit/Provider | ESO/Hammond et al. |
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Source | European Southern Observatory |
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Date and time of data generation | 10:13, 21 April 2023 |
Software used | Adobe Photoshop 24.3 (Windows) |
File change date and time | 10:46, 6 April 2023 |
Date and time of digitizing | 13:07, 5 April 2023 |
Date metadata was last modified | 12:46, 6 April 2023 |
Unique ID of original document | xmp.did:50145d34-199a-8e4c-bc39-e896002e7d93 |
Keywords | HD 169142 |
Contact information |
Karl-Schwarzschild-Strasse 2 Garching bei München, None, D-85748 Germany |
IIM version | 4 |