1. Hubblecast 66: Hubble uncovers the secrets of the Ring Nebula — The ESA astronomy podcast

    05:29

    from HubbleESA Added 58 3 2

    This episode of the Hubblecast explores the Ring Nebula (Messier 57). Although this nebula is one of the most famous objects in our skies, more than 200 years after its discovery astronomers are still unveiling some of its secrets. The Ring Nebula was discovered in the late 18th century, but its true shape and structure has remained unclear. Now, a team of astronomers has used the NASA/ESA Hubble Space Telescope, alongside existing ground-based data, to explore the Ring Nebula in depth. The astronomers wanted to better understand the nebula's structure, evolution, physical conditions, and motion — and it turns out that the Ring Nebula is not actually very ring-shaped after all. Hubblecast 66 showcases stunning new Hubble images of this beautiful object, showing the bright, colourful centre of the nebula, and the dramatically turbulent space that surrounds it. More information and download options: http://www.spacetelescope.org/videos/heic1310a/ Credit: ESA/Hubble Directed by: Nicola Guttridge Visual design and editing: Martin Kornmesser Written by: Nicola Guttridge Presented by: Joe Liske (Dr J) Narration: Sara Mendes da Costa Animations: Martin Kornmesser Images: ESA/Hubble and NASA - Images of Messier 57: ESA/Hubble & NASA, the Hubble Heritage team (STScI/AURA), the Large Binocular Telescope Observatory (LBTO), and C.R. O'Dell - The Little Dumbbell Nebula, Messier 76: Adam Block/Mount Lemmon SkyCenter/University of Arizona Web and technical support: Mathias Andre and Raquel Yumi Shida Music: Toomas Erm Cinematography: Peter Rixner (www.perix.de) Executive producer: Lars Lindberg Christensen

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    • The Ring Nebula - Starmap

      05:22

      from Star Map Added 1,330 2 0

      A dive into the Ring Nebula, a planetary nebula in the Lyra constellation. The film shows the real shape of M57 and describes the formation of the nebula. Beginners in astronomy will find some guidance for observing the nebula with small telescopes.

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      • Exploring the Ring Nebula (3D)

        01:51

        from HubbleESA Added 179 2 0

        This video begins with a zoom into the constellation of Lyra, to the location of the Ring Nebula and the new composite Hubble/Large Binocular Telescope image. Then the three-dimensional model of the Ring Nebula, developed from the new observations, is explored. The main ring glows in the light of nitrogen, shown in red. That ring is filled with oxygen emission, shown in green. Perpendicular lobes are filled with the hottest emission from helium, shown in blue. Dense dark knots line the interior of the ring, and their shadows glow like spikes in Hydrogen emission, shown in red. Hydrogen emission also reveals the inner and outer halos. A circuit around the 3D model showcases the more accurate and most detailed structure that astronomers have uncovered. More information and download-options: http://www.spacetelescope.org/videos/heic1310e/ Credit: NASA, ESA; G. Bacon, F. Summers and M. Estacion (STScI)

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        • Fly-around and zoom into the Ring Nebula (3D)

          00:58

          from HubbleESA Added 70 1 0

          This video begins with a zoom into the constellation of Lyra, to the location of the Ring Nebula and the new composite Hubble/Large Binocular Telescope image. The view cross-fades to a three-dimensional model of the Ring Nebula that was developed from new Hubble observations. A circuit around the 3D model showcases the main ring structure, the perpendicular lobes, the spike-like emission in the shadows of dense knots, and the halos surrounding the nebula. More information and download-options: http://www.spacetelescope.org/videos/heic1310b/ Credit: NASA, ESA, G. Bacon and F. Summers (STScI)

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          • Zooming in on Messier 57, the Ring Nebula

            00:56

            from HubbleESA Added 71 2 0

            This video zooms in on planetary nebula Messier 57, known as the Ring Nebula. The sequence begins with a view of the night sky near the constellation of Lyra. It then zooms through observations from the Digitized Sky Survey 2, and ends with a view of the nebula obtained by Hubble. The data of the region surrounding the Ring Nebula’s central region are provided by the Large Binocular Telescope Observatory. More information and download-options: http://www.spacetelescope.org/videos/heic1310f/ Credit: NASA, ESA, Digitized Sky Survey 2, and the Large Binocular Telescope Observatory (LBTO)

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            • Fly to the Ring Nebula

              00:54

              from Dário Fonseca Added 51 0 0

              This is the left channel of a stereoscopic simulation made with Partiview/Digital Universe Atlas.

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              • New Hubble observations reveal the structure of the Ring Nebula

                00:36

                from HubbleESA Added 25 1 0

                This is an artist’s impression of the Ring Nebula’s structure, fading from the new Hubble image into a 3D visualisation. It is based on new Hubble observations of the nebula, which is actually shaped a little like a distorted doughnut. Although the centre of this doughnut may look empty, it is actually full of lower density material that stretches both towards and away from us, creating a shape similar to a rugby ball slotted into the doughnut’s central gap. The space around the nebula is turbulent and full of knotty structures that formed in the nebula's past. The brightest part of this nebula is what we see as the colourful main ring. This is composed of gas thrown off by a dying star at the centre of the nebula. More information and download-options: http://www.spacetelescope.org/videos/heic1310c/ Credit: ESA/Hubble and NASA, M. Kornmesser.

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                • Visualisation of the 3D structure of the Ring Nebula

                  00:30

                  from HubbleESA Added 52 2 0

                  This image uses a 3D effect to visualise the Ring Nebula’s structure. The brightest part of this nebula is what we see as the colourful main ring. This is composed of gas thrown off by a dying star at the centre of the nebula. More information and download-options: http://www.spacetelescope.org/videos/heic1310d/ Credit: ESA/Hubble and NASA, M. Kornmesser.

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                  • M57 Ring Nebula OIII Halo

                    00:19

                    from Kenneth Crawford Added 72 1 0

                    Very faint outer OIII halo - this is a blink between the OIII and Ha inverted for higher contrast. See the finished result here ; http://www.imagingdeepsky.com/Nebulae/M57/M57.htm www.imagingdeepsky.com

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