{"id":225350,"date":"2025-10-19T15:05:08","date_gmt":"2025-10-19T15:05:08","guid":{"rendered":"https:\/\/www.newsbeep.com\/au\/225350\/"},"modified":"2025-10-19T15:05:08","modified_gmt":"2025-10-19T15:05:08","slug":"watch-comets-lemmon-and-swan-make-their-closest-approach-to-earth-live-online-on-oct-20","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/au\/225350\/","title":{"rendered":"Watch comets Lemmon and SWAN make their closest approach to Earth live online on Oct. 20"},"content":{"rendered":"<p>Comets C\/2025 A6 Lemmon &amp; C\/2025 R2 SWAN at their closest approach to Earth \u2013 online observation &#8211; YouTube<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.newsbeep.com\/au\/wp-content\/uploads\/2025\/10\/1760886308_980_maxresdefault.jpg\" alt=\"Comets C\/2025 A6 Lemmon &amp; C\/2025 R2 SWAN at their closest approach to Earth \u2013 online observation - YouTube\" data-aspect-ratio=\"16\/9\" loading=\"lazy\"\/><\/p>\n<p><a class=\"watch-on-youtube-tD0jJnuuwq8\" href=\"https:\/\/youtu.be\/tD0jJnuuwq8\" target=\"_blank\" data-url=\"https:\/\/youtu.be\/tD0jJnuuwq8\" referrerpolicy=\"no-referrer-when-downgrade\" data-hl-processed=\"none\" rel=\"nofollow noopener\">Watch On <\/a><\/p>\n<p id=\"a0b99621-ac64-4455-9cb3-fc882edc8cf5\">Two comets, C\/2025 A4 (Lemmon) and C\/2025 R2 (SWAN), are about to reach their closest approach to Earth and you can watch the action unfold live online.<\/p>\n<p>Astronomer Gianluca Masi and his Virtual Telescope Project will host a special livestream on Oct. 20 beginning at 1:30 p.m. EDT (1730 GMT) to watch as both comets make a close pass to Earth, making them well placed for observations.<\/p>\n<p><a id=\"elk-seasonal\" href=\"\" data-url=\"\" target=\"_blank\" referrerpolicy=\"no-referrer-when-downgrade\" data-hl-processed=\"none\"\/><\/p>\n<p id=\"a0b99621-ac64-4455-9cb3-fc882edc8cf5-2\">&#8220;So far, living in the Northern hemisphere, I could admire C\/2025 A6 Lemmon only,<br \/>but C\/2025 R2 SWAN is quickly joining the show and we are ready to amaze every<br \/>astronomy lover with our live feed!&#8221; Masi told Space.com in an email.<\/p>\n<p>You may like<\/p>\n<p>You can watch the cosmic show live here on Space.com courtesy of the Virtual Telescope Project or on the <a data-analytics-id=\"inline-link\" href=\"https:\/\/www.virtualtelescope.eu\/webtv\/\" target=\"_blank\" data-url=\"https:\/\/www.virtualtelescope.eu\/webtv\/\" referrerpolicy=\"no-referrer-when-downgrade\" data-hl-processed=\"none\" rel=\"nofollow noopener\">project&#8217;s website<\/a> or <a data-analytics-id=\"inline-link\" href=\"https:\/\/www.youtube.com\/@GianMasiVirtualTelescope\/streams\" target=\"_blank\" data-url=\"https:\/\/www.youtube.com\/@GianMasiVirtualTelescope\/streams\" referrerpolicy=\"no-referrer-when-downgrade\" data-hl-processed=\"none\" rel=\"nofollow noopener\">YouTube channel<\/a>, weather permitting.<\/p>\n<p><a id=\"elk-3666c538-5e37-4db3-b377-90442b57a9e7\" href=\"\" data-url=\"\" target=\"_blank\" referrerpolicy=\"no-referrer-when-downgrade\" data-hl-processed=\"none\"\/>Rare double-comet encounter<\/p>\n<p id=\"d555a3b9-b94b-4acf-8c96-d4d1fbd255ab\">Having two right comets visible in the sky around the same time is a rare cosmic treat. During the event, Comet Lemmon (C\/2025 A6) will pass about 56 million miles (90 million kilometers) from Earth, while Comet Swan (C\/2025 R2) will soar even closer, at roughly 24 million miles (39 million km). Both are expected to peak in brightness between Oct. 20 and Oct. 21.<\/p>\n<p>Comet C\/2025 A6 (Lemmon) was discovered in January 2025 and has been steadily brightening as it soars through the inner <a data-analytics-id=\"inline-link\" href=\"https:\/\/www.space.com\/16080-solar-system-planets.html\" data-before-rewrite-localise=\"https:\/\/www.space.com\/16080-solar-system-planets.html\" rel=\"nofollow noopener\" target=\"_blank\">solar system<\/a>. Lemmon is visible in a pair of binoculars or small telescopes in the western evening sky after sunset, slowly climbing higher each night as it moves northward.<\/p>\n<p id=\"54d6cd4f-d341-430a-bfde-b2ec13af08bf\">Comet C\/2025 R2 (SWAN) was discovered in September 2025 by the <a data-analytics-id=\"inline-link\" href=\"https:\/\/www.space.com\/18501-soho-solar-heliospheric-observatory.html\" data-before-rewrite-localise=\"https:\/\/www.space.com\/18501-soho-solar-heliospheric-observatory.html\" rel=\"nofollow noopener\" target=\"_blank\">Solar and Heliospheric Observatory<\/a>&#8216;s SWAN instrument. It is best viewed in the predawn sky, when the comet appears low on the eastern horizon as it continues its journey away from <a data-analytics-id=\"inline-link\" href=\"https:\/\/www.space.com\/58-the-sun-formation-facts-and-characteristics.html\" data-before-rewrite-localise=\"https:\/\/www.space.com\/58-the-sun-formation-facts-and-characteristics.html\" rel=\"nofollow noopener\" target=\"_blank\">the sun<\/a>.<\/p>\n<p class=\"newsletter-form__strapline\">Breaking space news, the latest updates on rocket launches, skywatching events and more!<\/p>\n<p>If you&#8217;re hoping to spot the comets yourself, check out our guides to the <a data-analytics-id=\"inline-link\" href=\"https:\/\/www.space.com\/26021-best-binoculars.html\" data-before-rewrite-localise=\"https:\/\/www.space.com\/26021-best-binoculars.html\" rel=\"nofollow noopener\" target=\"_blank\">best binoculars<\/a> and <a data-analytics-id=\"inline-link\" href=\"https:\/\/www.space.com\/31229-best-beginner-telescopes.html\" data-before-rewrite-localise=\"https:\/\/www.space.com\/31229-best-beginner-telescopes.html\" rel=\"nofollow noopener\" target=\"_blank\">best telescopes for beginners<\/a>, as well as our <a data-analytics-id=\"inline-link\" href=\"https:\/\/www.space.com\/how-to-view-and-photograph-comets#:~:text=Long%20exposures%20are%20required%20when,the%20camera%20stationary%20when%20shooting.\" data-before-rewrite-localise=\"https:\/\/www.space.com\/how-to-view-and-photograph-comets#:~:text=Long%20exposures%20are%20required%20when,the%20camera%20stationary%20when%20shooting.\" rel=\"nofollow noopener\" target=\"_blank\">how to photograph comets guide<\/a>. And don&#8217;t forget to explore our <a data-analytics-id=\"inline-link\" href=\"https:\/\/www.space.com\/16149-night-sky.html\" data-before-rewrite-localise=\"https:\/\/www.space.com\/16149-night-sky.html\" rel=\"nofollow noopener\" target=\"_blank\">night sky<\/a> guide for more celestial highlights this month.<\/p>\n<p>Editor&#8217;s note: If you capture a photo of Comet Lemmon or Comet SWAN and would like to share it with Space.com, send your images and comments to spacephotos@space.com.<\/p>\n","protected":false},"excerpt":{"rendered":"Comets C\/2025 A6 Lemmon &amp; C\/2025 R2 SWAN at their closest approach to Earth \u2013 online observation &#8211;&hellip;\n","protected":false},"author":2,"featured_media":225351,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[64,63,128,285],"class_list":{"0":"post-225350","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-space","8":"tag-au","9":"tag-australia","10":"tag-science","11":"tag-space"},"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/posts\/225350","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/comments?post=225350"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/posts\/225350\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/media\/225351"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/media?parent=225350"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/categories?post=225350"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/tags?post=225350"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}