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Explanation: What causes the patterns in Saturn's rings? The Cassini spacecraft, soon ending its 13 years orbiting Saturn, has sent back another spectacular image of Saturn's immense ring system in unprecedented detail. The physical cause for some of Saturn's ring structures is not always understood. The cause for the beautifully geometric type of ring structure shown here in ring of Saturn, however, is surely a density wave. A small moon systematically perturbing the orbits of ring particles circling Saturn at slightly different distances causes such a density wave bunching. Also visible on the lower right of the image is a bending wave, a vertical wave in ring particles also caused by the gravity of a nearby moon. Cassini's final orbits are allowing a series of novel scientific measurements and images of the Solar System's most grand ring system.
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Based on Astronomy Picture
Of the Day
Publications with keywords: Saturn - cassini spacecraft
Publications with words: Saturn - cassini spacecraft
See also:
- APOD: 2025 February 23 Á Saturn in Infrared from Cassini
- APOD: 2025 January 19 Á Titan Touchdown: Huygens Descent Movie
- APOD: 2024 December 8 Á Aurora around Saturns North Pole
- Saturn at Night
- APOD: 2024 August 27 Á Moon Eclipses Saturn
- APOD: 2024 June 23 Á The Colors of Saturn from Cassini
- Crescent Enceladus