1. Abell 1689 in 60 Seconds


    from cxcpub Added 77 0 0

    Abell 1689 is a massive cluster of galaxies located about 2.3 billion light-years away.

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    • NASA SDO - Summer Takes the Fall; September 1-30, 2012


      from Camilla Corona Added 55 1 0

      A look at the Sun from September 1 through September 30, 2012. The video combines three wavelengths with similar temperatures, highlighting different parts of the solar corona. During this segment we also see the start of the Fall Eclipse Season, where Earth moves in between the Solar Dynamics Observatory spacecraft and the Sun. This happens twice a year, for three weeks near the equinox and Earth blocks the view of the Sun for a period of time each day. Any spacecraft observing the Sun from an orbit around Earth has to contend with such eclipses, but SDO's orbit is designed to minimize them as much as possible. The first day of fall 2012 was on September 22, 2012. While nothing is different on the Sun, it is Earth's orbit and tilt providing us with the four different seasons. Credit: NASA SDO

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      • Antique Photons Observatory Report


        from M.Allen Taylor Added 174 0 0

        Episode 5b - The Night Mode Tool The second in a three part series where I demo the tools contained in The Imager's Toolkit, a suite of imaging tools for the Astrophotographer. To learn more about The Imager's Toolkit please visit my website at mallentaylor.com Music by Trafic De Blues licensed Creative Commons "BY" Video by M.Allen Taylor, licensed Creative Commons "BY"

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        • SciLapse - London, Science Hack Day 2010


          from Edward Gomez Added 37 0 0

          A quick time lapse from a few of us geeky scientists who hadn't slept after a nice of science hacking!

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          • Seoul English Edu-Center


            from Miron Hermanovich Added 68 0 0

            Last week went to a astronomical observatory. We saw Jupiter through a big telescope. I could see the stripes of clouds on Jupiter and four moons of Jupiter. It was great fun! I want to go there one more time to see the Moon. This time we could't see it.

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            • Pleiades Occultation July 20 2006


              from Andreas Gada Added 57 2 0

              On October 20, 2006 the Pleiades were occultated by the 24-day-old waning crescent Moon. To document the passage of the moon through the Pleiades Andreas Gada took 1063 images at 10-second intervals using a Canon 20Da camera attached to a Starfire 130 ED APO refractor from his property at Oak Heights, Ontario. By using .5 second exposures at f/6 and ISO 800 he was able to capture earthshine on the moon and stars down to 9th magnitude. These images were imported into ProShow Gold to create a spectacular 100x time-lapse movie of this event. You may want to view the show several times to see all the subtle details: * the clouds moving past the moon at the beginning when the moon was low on the horizon; * the disappearance of the stars behind the bright limb of the moon (17 in all) and their re-appearance (16 in all) from behind the dark limb some time later as the moon glides gracefully across the screen; * the twinkling of the brighter stars; * the slow drift of the stars in the frame caused by polar alignment; * the slight image shift halfway through the sequence when the scope was bumped.

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              • Solar Telescope


                from Hands On! Inc. Added 46 0 0

                Video demonstration of the Sun Spotter solar telescope exhibit designed by Hands On! Inc. with C.W. Shaw. For more information on this exhibit and others, vist our website at www.hofl.org.

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                • Asteroid/NEO 2004 BL86


                  from Jason Enevoldsen Added 158 0 0

                  Asteroid/NEO 2004 BL86 imaged from Seattle as it crosses M44 (Beehive Cluster). The images were taken once per minute and are played back at 6fps, resulting in 1 hours of real time for each 10 seconds of video. The asteroid enters from the bottom near the center and moves up and left. The light blotches that appear across large parts of the image are passing clouds and haze. Scope: Stellarvue SVR90T with SFFR6 flattener/reducer Mount: Atlas EQ-G Camera: Nikon D800 103 images, each at ISO800, 6s SQM: 17.16

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                  • Comets Bitin' the Dust


                    from Richard Bell Added 168 0 0

                    Originally created for a program I gave at the Kalamazoo Astronomical Society's Astronomy Day celebration on May 7, 2011. Features a collection of movies from the Solar and Heliospheric Observatory (SOHO) showing comets disintegration (for the most part) when they pass too close to the Sun.

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                    • Assessing the Threat of Asteroid Impacts on Earth - David E.Trilling, Northern Arizona University


                      from Kavli Frontiers of Science Added 62 0 0

                      Assessing the Threat of Asteroid Impacts on Earth: Current knowledge and outstanding questions for Near Earth Objects David E.Trilling, Northern Arizona University Near Earth Objects (NEOs) are bodies whose orbits bring them close to the Earths orbit. NEOs made the news in February, 2013, when a school bus-sized asteroid exploded over the Russian city of Chelyabinsk [1]. More recently, NEOs have been in the news again with NASA’s plan to retrieve an NEO and place it in orbit near the Moon, where astronauts can easily explore the captured body [2]. Despite the importance of NEOs — an impact could ruin your day — and their obvious appeal to the public, a number of key questions about NEOs remain unknown. For example, we do not know well the total number of Chelyabinsk ¬sized objects [3], which means that our understanding of the impact risk is not good, and our list of targets for spacecraft exploration is quite small. Remarkably, we also do not know well the source regions of NEOs, nor the physical properties of many NEOs, though our knowledge in both areas is increasing rapidly. Some NEOs have recently been found [4] to have large quantities of volatile material (ice and gas of water, carbon dioxide, and carbon monoxide), reinforcing the idea that NEOs in the early Solar System may have brought some of the ingredients for life to Earth. I will present an overview of the state of NEO knowledge. I will describe recent and com¬ing exploration techniques, using both ground-based and space-based platforms. I will also briefly review several related NEO topics, including impact mitigation and mining plans. In the coming few years, I expect substantially enhanced NEO activities, from new tele¬scope assets being employed to commitment to space exploration tasks, and a consequent improvement in our knowledge of the properties of NEOs. References: [1]http://www.youtube.com/watch?v=svzB0QYNIWI [2]http://tinyurl.com/nockb6o (Space Review: 30 Sept 2013) [3]Harris2008, Nature,453,1178(http://tinyurl.com/cavkvg) [4]http://tinyurl.com/l2vgvns (Bad Astronomy: 24 Sept 2013) Background Review Articles: Asteroids and Us, Bill Nye, 2013. http://www.billnye.com/asteroids-and-us-2/ and http://www.huffingtonpost.com/tag/asteroids-getting-ready (a series of short articles)

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