page_title: S/2009 S 1
section_title: Discovery
hierarchical_section_title: S/2009 S 1 / Discovery
caption_attribution_description: English: The Cassini spacecraft captured this image of a small object in the outer portion of Saturn's B ring casting a shadow on the rings as Saturn approaches its August 2009 equinox. Ελληνικά: H φωτογραφία ανακάλυψης του S/2009 S 1 που πάρθηκε από το Κασίνι.
context_page_description: S/2009 S 1 is a "propeller moonlet" of Saturn orbiting at a distance of 117,000 km, in the outer part of the B Ring, and with a diameter of 300 m. The moonlet was discovered by the Cassini Imaging Team during the Cronian equinox event on 26 July 2009, when it cast a shadow 36 km long onto the B Ring. S/2009 S 1 protrudes 150 m north of the ring. The image was taken approximately 296,000 km from Saturn.
context_section_description: S/2009 S 1 was first identified by the Cassini Imaging Team on 26 July 2009. It was discovered during 2009's equinox by an approximately 36 kilometres (22 mi) long shadow that it cast on the planet Saturn's B ring. This particular moon is one of the smallest moons of Saturn.
caption: A wider perspective of the image above. S/2009 S 1 is in the center. The Cassini Division is on the right.
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