پرونده:Abell 370 Parallel Field with Asteroids.jpg
پروندهٔ اصلی (۲٬۱۴۶ × ۲٬۴۰۰ پیکسل، اندازهٔ پرونده: ۱٫۷ مگابایت، نوع MIME پرونده: image/jpeg)
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خلاصه
توضیحAbell 370 Parallel Field with Asteroids.jpg |
English: Some asteroids from within our Solar System have photobombed deep images of the Universe taken by the NASA/ESA Hubble Space Telescope. These asteroids reside, on average, only about 260 million kilometres from Earth — right around the corner in astronomical terms. Yet they've horned their way into this picture of thousands of galaxies scattered across space and time at inconceivably farther distances.
This Hubble photo of a random patch of sky is part of the Frontier Fields survey. The colourful image contains thousands of galaxies, including massive yellowish ellipticals and majestic blue spirals. Much smaller, fragmentary blue galaxies are sprinkled throughout the field. The reddest objects are most likely the farthest galaxies, whose light has been stretched into the red part of the spectrum by the expansion of space. Intruding across the picture are asteroid trails that appear as curved or S-shaped streaks. Rather than leaving one long trail, the asteroids appear in multiple Hubble exposures that have been combined into one image. Of the 20 total asteroid sightings for this field, seven are unique objects. Of these seven asteroids, only two were earlier identified. The others were too faint to be seen previously. The trails look curved due to an observational effect called parallax. As Hubble orbits around Earth, an asteroid will appear to move along an arc with respect to the vastly more distant background stars and galaxies. The motion of Earth around the Sun, and the motion of the asteroids along their orbits, are other contributing factors to the apparent skewing of asteroid paths. All the asteroids were found manually, the majority by "blinking" consecutive exposures to capture apparent asteroid motion. Astronomers found a unique asteroid for every 10 to 20 hours of exposure time. The Frontier Fields program is a collaboration among several space telescopes and ground-based observatories to study six massive galaxy clusters and their effects. Using a different camera, pointing in a slightly different direction, Hubble photographed six so-called "parallel fields" at the same time it photographed the massive galaxy clusters. This maximised Hubble's observational efficiency in doing deep space exposures. These parallel fields are similar in depth to the famous Hubble Deep Field, and include galaxies about four-billion times fainter than can be seen by the human eye. This picture is of the parallel field for the galaxy cluster Abell 370. It was assembled from images taken in visible and infrared light. The field's position on the sky is near the ecliptic, the plane of our Solar System. This is the zone in which most asteroids reside, which is why Hubble astronomers saw so many crossings. Hubble deep-sky observations taken along a line-of-sight near the plane of our Solar System commonly record asteroid trails. |
تاریخ | |
منبع | https://www.spacetelescope.org/images/opo1733a/ |
پدیدآور |
NASA, ESA, and B. Sunnquist and J. Mack (STScI) Acknowledgment: NASA, ESA, and J. Lotz (STScI) and the HFF Team |
اجازهنامه
ESA/Hubble images, videos and web texts are released by the ESA under the Creative Commons Attribution 4.0 International license and may on a non-exclusive basis be reproduced without fee provided they are clearly and visibly credited. Detailed conditions are below; see the ESA copyright statement for full information. For images created by NASA or on the hubblesite.org website, or for ESA/Hubble images on the esahubble.org site before 2009, use the {{PD-Hubble}} tag.
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۶ نوامبر 2017
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کنونی | ۱۰ ژوئیهٔ ۲۰۲۲، ساعت ۱۲:۲۳ | ۲٬۱۴۶ در ۲٬۴۰۰ (۱٫۷ مگابایت) | Don-vip | full-res | |
۶ نوامبر ۲۰۱۷، ساعت ۱۵:۵۴ | ۱٬۲۸۰ در ۱٬۴۳۲ (۳۹۳ کیلوبایت) | Jmencisom | User created page with UploadWizard |
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صاحب امتیاز/ارائه کننده | NASA, ESA, and B. Sunnquist and J. Mack (STScI)Acknowledgment: NASA, ESA, and J. Lotz (STScI) and the HFF Team |
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منبع | ESA/Hubble |
عنوان کوتاه |
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عنوان تصویر |
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شرایط استفاده |
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تاریخ و زمان تولید دادهها | ۶ مهٔ ۲۰۲۲، ساعت ۰۹:۰۰ |
توضیحات پرونده JPEG | Photobombing asteroids from our solar system have snuck their way into this deep image of the universe taken by NASA’s Hubble Space Telescope. These asteroids are right around the corner in astronomical terms, residing roughly 160 million miles from Earth. Yet they’ve horned their way into this picture of thousands of galaxies scattered across space and time at inconceivably farther distances. |
واژههای کلیدی | Abell 370 |
اطلاعات تماس |
ESA Office, Space Telescope Science Institute, 3700 San Martin Dr Baltimore, MD, 21218 United States |
نسخه IIM | ۴ |