{"id":6217,"date":"2019-06-15T15:51:50","date_gmt":"2019-06-15T22:51:50","guid":{"rendered":"http:\/\/vernabob.com\/blog\/2019\/06\/15\/helene-a-trojan-moon-of-saturn-in-3d-2\/"},"modified":"2019-06-15T15:51:50","modified_gmt":"2019-06-15T22:51:50","slug":"helene-a-trojan-moon-of-saturn-in-3d-2","status":"publish","type":"post","link":"https:\/\/vernabob.com\/blog\/2019\/06\/15\/helene-a-trojan-moon-of-saturn-in-3d-2\/","title":{"rendered":"Helene, a Trojan Moon of Saturn In 3D"},"content":{"rendered":"<p><a href='http:\/\/vernabob.com\/graphics\/imageview.php?image=http:\/\/vernabob.com\/blog\/wp-content\/uploads\/2019\/06\/helene-3d.jpg' title='Helene'><img src='http:\/\/vernabob.com\/blog\/wp-content\/uploads\/2019\/06\/helene-3d.jpg' alt='Helene' width='500' \/><\/a><\/p>\n<p>Today&#8217;s Astronomy Picture of the Day featured this interesting 3D image of Helene, one of the planet Saturn&#8217;s Trojan moons. From <a href=\"https:\/\/apod.nasa.gov\/apod\/ap190615.html\">APOD<\/a>:<\/p>\n<blockquote><p><strong>Explanation<\/strong>: Get out your red\/blue glasses and float next to Helene, small, icy moon of Saturn. Appropriately named, Helene is one of four known Trojan moons, so called because it orbits at a Lagrange point. A Lagrange point is a gravitationally stable position near two massive bodies, in this case Saturn and larger moon Dione. In fact, irregularly shaped ( about 36 by 32 by 30 kilometers) Helene orbits at Dione&#8217;s leading Lagrange point while brotherly ice moon Polydeuces follows at Dione&#8217;s trailing Lagrange point. The sharp stereo anaglyph was constructed from two Cassini images captured during a close flyby in 2011. It shows part of the Saturn-facing hemisphere of Helene mottled with craters and gully-like features.<\/p><\/blockquote>\n<p>Click on the image to enlarge.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Today&#8217;s Astronomy Picture of the Day featured this interesting 3D image of Helene, one of the planet Saturn&#8217;s Trojan moons. From APOD: Explanation: Get out your&#46;&#46;&#46;<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32,9],"tags":[],"class_list":["post-6217","post","type-post","status-publish","format-standard","hentry","category-bobs-3d-stuff","category-nerd-stuff"],"_links":{"self":[{"href":"https:\/\/vernabob.com\/blog\/wp-json\/wp\/v2\/posts\/6217","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vernabob.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vernabob.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vernabob.com\/blog\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/vernabob.com\/blog\/wp-json\/wp\/v2\/comments?post=6217"}],"version-history":[{"count":0,"href":"https:\/\/vernabob.com\/blog\/wp-json\/wp\/v2\/posts\/6217\/revisions"}],"wp:attachment":[{"href":"https:\/\/vernabob.com\/blog\/wp-json\/wp\/v2\/media?parent=6217"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vernabob.com\/blog\/wp-json\/wp\/v2\/categories?post=6217"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vernabob.com\/blog\/wp-json\/wp\/v2\/tags?post=6217"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}