In this photo, taken on April 2 2014, the Cassini spacecraft captured three magnificent sights at once: Saturn’s north polar vortex and hexagon along with its expansive rings.
The hexagon, which is wider than two Earths, owes its appearance to the jet stream that forms its perimeter. The jet stream forms a six-lobed, stationary wave which wraps around the north polar regions at a latitude of roughly 77 degrees North.
This view looks toward the sunlit side of the rings from about 37 degrees above the plane of the rings. The image was taken with the Cassini spacecraft wide-angle camera using a spectral filter which preferentially admits wavelengths of near-infrared light centred at 752 nanometres. The view was obtained at a distance of approximately 2.2 million kilometres from Saturn and at a Sun-Saturn-spacecraft, or phase, angle of 43 degrees. Image scale is 131 kilometres per pixel.
Originally published by Cosmos as Saturn’s hexagon
Cosmos
Curated content from the editorial staff at Cosmos Magazine.
Read science facts, not fiction...
There’s never been a more important time to explain the facts, cherish evidence-based knowledge and to showcase the latest scientific, technological and engineering breakthroughs. Cosmos is published by The Royal Institution of Australia, a charity dedicated to connecting people with the world of science. Financial contributions, however big or small, help us provide access to trusted science information at a time when the world needs it most. Please support us by making a donation or purchasing a subscription today.