{"id":656533,"date":"2026-10-25T10:16:09","date_gmt":"2026-10-25T10:16:09","guid":{"rendered":"https:\/\/www.newsbeep.com\/il\/656533\/"},"modified":"2026-10-25T10:16:09","modified_gmt":"2026-10-25T10:16:09","slug":"the-sky-today-on-sunday-october-25-dione-crosses-saturn","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/il\/656533\/","title":{"rendered":"The Sky Today on Sunday, October 25: Dione crosses Saturn"},"content":{"rendered":"<p>\t\t\tBack to Article List\t\t<\/p>\n<p>\n\t\t\t\tDione and its shadow cross Saturn\u2019s disk this evening, while several more of the ringed planet\u2019s moons stand nearby.\t\t\t<\/p>\n<p><\/p>\n<p>\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1597\" height=\"925\" src=\"https:\/\/www.newsbeep.com\/il\/wp-content\/uploads\/2026\/10\/saturn-moons10252026.png\" class=\"attachment-large size-large wp-post-image\" alt=\"Telescopic simulation of Saturn and its moons, dated October 25, 2026, 10 P.M. EDT. Saturn is shown ringed at center, with Dione and its shadow labeled near the top of the globe. Tethys glows at far left and Rhea at far right. A 15 arcsecond scale bar sits at lower right.\"\/><\/p>\n<p>\n\t\t\t\t\t\tDione and its tiny shadow transit Saturn early in the evening on October 25. Credit: Stellarium\/Oleg Pluton\t\t\t\t\t<\/p>\n<p class=\"has-text-align-center wp-block-paragraph\">Looking for a sky event this week? Check out our full\u00a0<a href=\"https:\/\/www.astronomy.com\/the-sky-this-week\/the-sky-this-week-from-october-23-to-30-2026\/\" rel=\"nofollow noopener\" target=\"_blank\">Sky This Week<\/a>\u00a0column.\u00a0<\/p>\n<p class=\"has-text-align-center wp-block-paragraph\">October 24: <a href=\"https:\/\/www.astronomy.com\/observing\/the-sky-today-saturday-october-24-2026\/\" rel=\"nofollow noopener\" target=\"_blank\">Mercury stands still<\/a><\/p>\n<p class=\"has-text-align-left wp-block-paragraph\">Saturn\u2019s small moon Dione transits the disk this evening at 8:43 p.m. EDT, best seen from the eastern half of the U.S. However, the transit itself will be difficult to watch visually no matter your location, and will be best captured via high-speed video. Even if you aren\u2019t an advanced photographer, however, you can watch Dione enter and exit the disk, as well as track several of Saturn\u2019s other moons throughout the night.\u00a0<\/p>\n<p class=\"wp-block-paragraph\">Around 9 P.M. EDT (8 P.M. CDT), Saturn is well above the horizon, in the east for Midwestern observers and the southeast for those along the East Coast. It\u2019s the brightest point of light in this part of the sky and should be visible to the naked eye even with the Moon nearby. You\u2019ll need a telescope to spot its rings and moons, however, and the larger the better to help cut through the Moon\u2019s glare. Prior to the transit\u2019s start, 10th-magnitude Dione is approaching the planet\u2019s northeastern limb, with similarly bright Tethys east of the rings and Rhea to their west. Brighter Titan, which shines around magnitude 8.5, is also visible far west of Saturn all evening, about 2\u2019 from the planet\u2019s center.\u00a0<\/p>\n<p class=\"wp-block-paragraph\">As Dione begins its transit, it will likely seem to disappear for visual observers, as its tiny disk will be difficult to pick out against Saturn\u2019s bright cloud tops. Video capture might also nab the moon\u2019s shadow, which will cross the far northern polar region of the planet, appearing around 9:40 P.M. EDT and disappearing roughly half an hour later, before Dione reaches the northwestern limb. The moon does this just before 10:40 P.M. EDT \u2014 now, visual observers will see it pop into view just off the limb and begin pulling away from Saturn to the west.\u00a0<\/p>\n<p class=\"wp-block-paragraph\">Sunrise: 7:22 A.M.<br \/>Sunset: 6:06 P.M.<br \/>Moonrise: 5:33 P.M.<br \/>Moonset: 6:46 A.M.<br \/>Moon Phase: Full<br \/>*Times for sunrise, sunset, moonrise, and moonset are given in local time from 40\u00b0 N 90\u00b0 W. The Moon\u2019s illumination is given at 10 P.M. local time from the same location.\u00a0<\/p>\n<p class=\"wp-block-paragraph\">Alison Klesman\u00a0is senior editor of\u00a0Astronomy\u00a0magazine. She holds a Ph.D. in astronomy and has studied a variety of topics, from minor planets to supermassive black holes.<\/p>\n","protected":false},"excerpt":{"rendered":"Back to Article List Dione and its shadow cross Saturn\u2019s disk this evening, while several more of the&hellip;\n","protected":false},"author":2,"featured_media":656534,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[85,46,2928,141,43844],"class_list":["post-656533","post","type-post","status-publish","format-standard","has-post-thumbnail","category-science","tag-il","tag-israel","tag-observing","tag-science","tag-sky-tonight"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/posts\/656533","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/comments?post=656533"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/posts\/656533\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/media\/656534"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/media?parent=656533"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/categories?post=656533"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/tags?post=656533"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}