File:Going the distance (hd video) (7971868462).jpg
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editDescriptionGoing the distance (hd video) (7971868462).jpg |
A very large and bright prominence erupted off the surface of the Sun around 19:00 UT on August 31, 2012 and just kept going. This video from the STEREO Behind spacecraft shows the prominence and the coronal mass ejection (CME) in which it is embedded as it leaves the Sun (orange, EUVI) and travels through the fields of view of COR1 (green), COR2 (red), and HI1 (blue) telescopes before it finally disappears from HI1 around the end of September 2, still clearly visible more than two days after it erupted. While CMEs are routinely seen in the Heliographic Imager (HI) telescopes, it's very rare for prominences to stay visible for so long. The HI1 field of view ranges from 4 to 24 degrees away from the Sun. To get a sense of scale, we know the Sun is roughly 860,000 miles wide?and look how far the prominence holds together. And this CME is so bright it initially saturates the COR1 telescope. Also visible in the movie is the planet Venus, which appears as a bright spot on the right side of the COR2 field. Venus is extremely bright and its image is saturated on the COR2 detector. It also creates a couple of artifacts in the movie due to internal reflections within the HI1 telescope. The first of these artifacts is a loop-like feature near the position of the planet on the left side of the HI1 field. The second is a large bubble-like feature on the opposite side of the HI1 image--this is more easily seen at the start of the movie. Both of these artifacts are explained on the STEREO and SDO websites. NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission. Follow us on Twitter Like us on Facebook Find us on Instagram |
Date | |
Source | Going the distance [hd video] |
Author | NASA Goddard Space Flight Center from Greenbelt, MD, USA |
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This image was originally posted to Flickr by NASA Goddard Photo and Video at https://flickr.com/photos/24662369@N07/7971868462. It was reviewed on 17 September 2016 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
17 September 2016
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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 | 21:33, 17 September 2016 | 976 × 720 (281 KB) | Vanished Account Byeznhpyxeuztibuo (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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