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Sunday, 28 June 2020

NASA grab a decabe of sun watching into an hour on video: NASA’s Solar Dynamics Observatory (SDO) has gathered 425 million high-resolution images of the Sun, amassing 20 million gigabytes of data over the past 10 years.


As of June 2020, NASA’s Solar Dynamics Observatory — SDO — has now been watching the Sun non-stop for over a full decade. From its orbit in space around the Earth, SDO has gathered 425 million high-resolution images of the Sun, amassing 20 million gigabytes of data over the past 10 years. This information has enabled countless new discoveries about the workings of our closest star and how it influences the solar system. With a triad of instruments, SDO captures an image of the Sun every 0.75 seconds. The Atmospheric Imaging Assembly (AIA) instrument alone captures images every 12 seconds at 10 different wavelengths of light. This 10-year time-lapse showcases photos taken at a wavelength of 17.1 nanometers, which is an extreme ultraviolet wavelength that shows the Sun’s outermost atmospheric layer — the corona. Compiling one photo every hour, the movie condenses a decade of the Sun into 61 minutes. The video shows the rise and fall in an activity that occurs as part of the Sun’s 11-year solar cycle and notable events, like transiting planets and eruptions. The custom music, titled “Solar Observer,” was composed by musician Lars Leonhard (https://www.lars-leonhard.de/). While SDO has kept an unblinking eye pointed towards the Sun, there have been a few moments it missed. The dark frames in the video are caused by Earth or the Moon eclipsing SDO as they pass between the spacecraft and the Sun. A longer blackout in 2016 was caused by a temporary issue with the AIA instrument that was successfully resolved after a week. The images where the Sun is off-centre were observed when SDO was calibrating its instruments. SDO and other NASA missions will continue to watch our Sun in the years to come, providing further insights about our place in space and information to keep our astronauts and assets safe. Some noteworthy events appear briefly in this time-lapse. Use the time links below to jump to each event, or follow the links to more detailed views. 6:20 June 7, 2011-- A massive prominence eruption explodes from the lower right of the Sun. See the video: https://www.youtube.com/watch?v=HloC4... https://svs.gsfc.nasa.gov/10801 12:24 June 5, 2012-- The transit of Venus across the face of the Sun. Won’t happen again until 2117. See the video: https://www.youtube.com/watch?v=4Z9rM... https://svs.gsfc.nasa.gov/10996 13:06 July 19, 2012-- A complex loop of magnetic fields and plasma forms and lasts for hours. See the video: https://www.youtube.com/watch?v=HFT7A... https://svs.gsfc.nasa.gov/11168 13:50 Aug. 31, 2012-- The most iconic eruption of this solar cycle bursts from the lower left of the Sun. See the video: https://www.youtube.com/watch?v=GrnGi... https://svs.gsfc.nasa.gov/11095 20:25 Sept. 29, 2013-- A prominence eruption forms a long 'canyon’ that is then covered with loops of plasma. See the video: https://www.youtube.com/watch?v=Qurh_... https://svs.gsfc.nasa.gov/11379 26:39 Oct. 8, 2014-- Active regions on the Sun resembles a jack o’ lantern just in time for Halloween. https://svs.gsfc.nasa.gov/11711 36:18 May 9, 2016-- Mercury transits across the face of the Sun. Smaller and more distant than Venus it is hard to spot. See the video: https://www.youtube.com/watch?v=PhO6U... https://svs.gsfc.nasa.gov/12235 43:20 July 5, 2017-- A large sunspot group spends two weeks crossing the face of the Sun. See the video: https://www.youtube.com/watch?v=SungF... https://svs.gsfc.nasa.gov/12105 44:20 Sept. 6, 2017-- The most powerful sequence of flares during this solar cycle crackle for several days, peaking at X9.3. See the video: https://www.youtube.com/watch?v=q-ZQB... https://svs.gsfc.nasa.gov/12706 57:38 Nov. 11, 2019-- Mercury transits the Sun once more for SDO. The next transit won’t be until 2032. See the video: https://www.youtube.com/watch?v=0yNzS... https://svs.gsfc.nasa.gov/13425 Read more: https://www.nasa.gov/feature/goddard/... Music: "Solar Observer" written and produced for this video by Lars Leonhard (https://www.lars-leonhard.de/) Video credit: NASA's Goddard Space Flight Center/SDO Scott Wiessinger (USRA): Lead Producer Tom Bridgman (GST): Lead Data Visualizer Mara Johnson-Groh (Wyle Information Systems): Lead Science Writer This video is public domain and along with other supporting visualizations can be downloaded from NASA Goddard's Scientific Visualization Studio at https://svs.gsfc.nasa.gov/13641 If you liked this video, subscribe to the NASA Goddard YouTube channel: https://www.youtube.com/NASAGoddard Follow NASA’s Goddard Space Flight Center · Instagram http://www.instagram.com/nasagoddard · Twitter http://twitter.com/NASAGoddard · Twitter http://twitter.com/NASAGoddardPix · Facebook: http://www.facebook.com/NASAGoddard · Flickr http://www.flickr.com/photos/gsfc

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