File:Comparison of transit paths (heic2311b).jpg
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DescriptionComparison of transit paths (heic2311b).jpg |
English: This diagram compares two scenarios for how an Earth-sized exoplanet is passing in front of its host star. The bottom path shows the planet just grazing the star. Studying the light from such a transit could lead to an inaccurate estimate of the planet’s size, making it seem smaller than it really is. The top path shows the optimum geometry, where the planet transits the full disk of the star. Hubble Space Telescope’s accuracy can distinguish between these two scenarios, yielding a precise measurement of the planet’s diameter.[Image description: A red giant star is in the centre of the image. An exoplanet passing in front of the star (called a transit) is shown in silhouette in a number of steps from left to right. A similar linear trajectory is shown at the bottom of the image. It is called a grazing transit rather than a full transit because it just clips the bottom of the star. This is considered a less accurate observing geometry in estimating the planet’s size. Hubble’s accuracy can distinguish between these two scenarios, yielding a precise measurement of the planet’s diameter.] |
Date | 16 November 2023 (upload date) |
Source | Comparison of transit paths |
Author | NASA, ESA, E. Wheatley (STScI) |
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Attribution: ESA/Hubble
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current | 09:00, 17 November 2023 | 1,600 × 900 (413 KB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://cdn.spacetelescope.org/archives/images/large/heic2311b.jpg via Commons:Spacemedia |
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Source | ESA/Hubble |
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Credit/Provider | NASA, ESA, E. Wheatley (STScI) |
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Date and time of data generation | 16:00, 16 November 2023 |
Software used | Adobe Photoshop 25.0 (Macintosh) |
File change date and time | 15:53, 31 October 2023 |
Date and time of digitizing | 08:40, 31 October 2023 |
Date metadata was last modified | 11:53, 31 October 2023 |
Unique ID of original document | xmp.did:0ec47aa1-8393-42b5-b25f-83046e3bf382 |
Contact information |
ESA Office, Space Telescope Science Institute, 3700 San Martin Dr Baltimore, MD, 21218 United States |
IIM version | 4 |