{"id":43487,"date":"2023-03-23T11:23:36","date_gmt":"2023-03-23T11:23:36","guid":{"rendered":"https:\/\/www.skyatnightmagazine.com\/?p=117332"},"modified":"2023-03-23T12:35:11","modified_gmt":"2023-03-23T12:35:11","slug":"a-guide-to-the-cats-eye-nebula","status":"publish","type":"rss_feed","link":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/rss_feed\/a-guide-to-the-cats-eye-nebula\/","title":{"rendered":"A guide to the Cat\u2019s Eye Nebula"},"content":{"rendered":"<p class=\"rssexcerpt\"> Facts about the Cat&#8217;s Eye Nebula and how to observe and photograph it from Earth. <\/p><p class=\"rssauthor\">By Iain Todd\n                \t\t<\/p><p class=\"rssbyline\">Published: Thursday, 23 March 2023 at 12:00 am<\/p><hr class=\"no-tts wp-block-separator\"\/><?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?>\n<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.0 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/REC-html40\/loose.dtd\">\n<html><body> <p class=\"&quot;p1&quot;\">The Cat\u2019s Eye Nebula, also known as NGC 6543, is a planetary nebula located 3,000 lightyears away in the constellation Draco.<\/p>\n<p class=\"&quot;p1&quot;\">It was one of the first <a href=\"&quot;https:\/\/www.skyatnightmagazine.com\/space-science\/planetary-nebula\/&quot;\">planetary nebula<\/a> to be discovered, and is a wonderful example of this very special kind of cosmic cloud.<\/p>\n<p class=\"&quot;p1&quot;\">Planetary nebulae don\u2019t actually have anything to do with planets: they\u2019re called so because they often have a spherical, puffed-out appearance like a planet.<\/p>\n<ul><li><a href=\"&quot;https:\/\/www.skyatnightmagazine.com\/space-science\/nebula-look-like-animals\/&quot;\"><em><strong>Nebulae that look like animals<\/strong><\/em><\/a><\/li>\n<\/ul><div class=\"&quot;image-handler__container\" image-handler__container--full=\"\" style=\"&quot;padding-bottom:\" calc=\"\"> <picture><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2019\/10\/08-NGC6543-004-578aaaf.jpg?webp=true&amp;quality=90&amp;resize=300%2C190,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2019\/10\/08-NGC6543-004-578aaaf.jpg?quality=90&amp;resize=300%2C190,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2019\/10\/08-NGC6543-004-578aaaf.jpg?webp=true&amp;quality=90&amp;resize=355%2C225,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2019\/10\/08-NGC6543-004-578aaaf.jpg?quality=90&amp;resize=355%2C225,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2019\/10\/08-NGC6543-004-578aaaf.jpg?webp=true&amp;quality=90&amp;resize=405%2C256&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2019\/10\/08-NGC6543-004-578aaaf.jpg?quality=90&amp;resize=405%2C256&quot;\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2019\/10\/08-NGC6543-004-578aaaf.jpg?webp=true&amp;quality=90&amp;resize=554%2C350&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2019\/10\/08-NGC6543-004-578aaaf.jpg?quality=90&amp;resize=554%2C350&quot;\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2019\/10\/08-NGC6543-004-578aaaf.jpg?webp=true&amp;quality=90&amp;resize=620%2C392&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2019\/10\/08-NGC6543-004-578aaaf.jpg?quality=90&amp;resize=620%2C392&quot;\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2019\/10\/08-NGC6543-004-578aaaf.jpg?webp=true&amp;quality=90&amp;resize=408%2C258&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2019\/10\/08-NGC6543-004-578aaaf.jpg?quality=90&amp;resize=408%2C258&quot;\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2019\/10\/08-NGC6543-004-578aaaf.jpg?webp=true&amp;quality=90&amp;resize=556%2C352&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2019\/10\/08-NGC6543-004-578aaaf.jpg?quality=90&amp;resize=556%2C352&quot;\" type=\"&quot;image\/jpeg&quot;\"><img class=\"&quot;wp-image-41264\" align=\"\" size-full=\"\" image-handler__image=\"\" image-handler__image--full=\"\" no-wrap=\"\" js-lazyload=\"\" data-src=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2019\/10\/08-NGC6543-004-578aaaf.jpg?quality=90&amp;resize=620%2C392&quot;\" width=\"&quot;800&quot;\" height=\"&quot;506&quot;\" alt=\"&quot;&quot;\" title=\"&quot;&quot;\"\/><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div><div class=\"&quot;caption-hold&quot;\"><figcaption class=\"&quot;wp-caption-text&quot;\"><span class=\"&quot;caption-copy&quot;\"><i class=\"&quot;icon-arrow\" icon-camera-circle=\"\"\/> The Cat\u2019s Eye Nebula. Credit: Michael Breite, Stefan Heutz, Wolfgang Ries \/ CCDGuide.com<\/span><\/figcaption><span class=\"&quot;im-image-caption&quot;\"\/><\/div>\n<p class=\"&quot;p1&quot;\">Planetary nebulae are one of the final stages of a Sun-like star, as they run out of fuel and begin losing their outer layers into space.<\/p>\n<p class=\"&quot;p1&quot;\">As a result, <a href=\"&quot;https:\/\/www.skyatnightmagazine.com\/space-science\/beginners-guide-nebulae\/&quot;\">nebulae<\/a> like the Cat\u2019s Eye Nebula give us a glimpse of our own Sun\u2019s fate.<\/p>\n<p>Is this <a href=\"&quot;https:\/\/www.skyatnightmagazine.com\/space-science\/what-will-happen-to-solar-system-future\/&quot;\">what will happen to out Solar System in future<\/a>?<\/p>\n<p>At the centre of the Cat\u2019s Eye Nebula is a dying Wolf Rayet star, the sort of which can be seen in the <a href=\"&quot;https:\/\/www.skyatnightmagazine.com\/news\/webb-telescope-wolf-rayet-wr-124\/&quot;\">Webb Telescope\u2019s image of WR 124<\/a>.<\/p>\n<p class=\"&quot;p1&quot;\"><a href=\"&quot;https:\/\/www.skyatnightmagazine.com\/space-science\/hubble-space-telescope-facts-history\/&quot;\">Hubble Space Telescope<\/a> images of the Cat\u2019s Eye Nebula<span class=\"&quot;Apple-converted-space&quot;\">\u00a0 <\/span>show a sort of dart board pattern of concentric rings emanating outwards from the centre.<\/p>\n<p class=\"&quot;p1&quot;\">These are shells of cosmic dust being ejected out into space.<\/p>\n<p class=\"&quot;p1&quot;\">Each ring that can be seen in the Hubble images is the edge of a one of these spherical shells expanding outwards.<\/p>\n<div class=\"&quot;image-handler__container\" image-handler__container--full=\"\" style=\"&quot;padding-bottom:\" calc=\"\"> <picture><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2023\/03\/cats-eye-nebula-1994-232b808.jpeg?webp=true&amp;quality=90&amp;resize=300%2C300,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2023\/03\/cats-eye-nebula-1994-232b808.jpeg?quality=90&amp;resize=300%2C300,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2023\/03\/cats-eye-nebula-1994-232b808.jpeg?webp=true&amp;quality=90&amp;resize=355%2C355,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2023\/03\/cats-eye-nebula-1994-232b808.jpeg?quality=90&amp;resize=355%2C355,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2023\/03\/cats-eye-nebula-1994-232b808.jpeg?webp=true&amp;quality=90&amp;resize=405%2C405&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2023\/03\/cats-eye-nebula-1994-232b808.jpeg?quality=90&amp;resize=405%2C405&quot;\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2023\/03\/cats-eye-nebula-1994-232b808.jpeg?webp=true&amp;quality=90&amp;resize=554%2C554&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2023\/03\/cats-eye-nebula-1994-232b808.jpeg?quality=90&amp;resize=554%2C554&quot;\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2023\/03\/cats-eye-nebula-1994-232b808.jpeg?webp=true&amp;quality=90&amp;resize=620%2C620&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2023\/03\/cats-eye-nebula-1994-232b808.jpeg?quality=90&amp;resize=620%2C620&quot;\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2023\/03\/cats-eye-nebula-1994-232b808.jpeg?webp=true&amp;quality=90&amp;resize=408%2C408&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2023\/03\/cats-eye-nebula-1994-232b808.jpeg?quality=90&amp;resize=408%2C408&quot;\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2023\/03\/cats-eye-nebula-1994-232b808.jpeg?webp=true&amp;quality=90&amp;resize=556%2C556&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2023\/03\/cats-eye-nebula-1994-232b808.jpeg?quality=90&amp;resize=556%2C556&quot;\" type=\"&quot;image\/jpeg&quot;\"><img class=\"&quot;wp-image-117334\" align=\"\" size-full=\"\" image-handler__image=\"\" image-handler__image--full=\"\" no-wrap=\"\" js-lazyload=\"\" data-src=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2023\/03\/cats-eye-nebula-1994-232b808.jpeg?quality=90&amp;resize=620%2C620&quot;\" width=\"&quot;800&quot;\" height=\"&quot;800&quot;\" alt=\"&quot;&quot;\" title=\"&quot;&quot;\"\/><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div><div class=\"&quot;caption-hold&quot;\"><figcaption class=\"&quot;wp-caption-text&quot;\"><span class=\"&quot;caption-copy&quot;\"><i class=\"&quot;icon-arrow\" icon-camera-circle=\"\"\/> A 1994 Hubble image of the Cat\u2019s Eye Nebula. Credit: Credit: J.P. Harrington and K.J. Borkowski (University of Maryland), and NASA<\/span><\/figcaption><span class=\"&quot;im-image-caption&quot;\"\/><\/div>\n<p class=\"&quot;p1&quot;\">Astronomers observing the Cat\u2019s Eye Nebula with Hubble deduced that the star that produces the nebula ejects material in pulses of energy every 1,500 years or so.<\/p>\n<p class=\"&quot;p1&quot;\">Each dust shell ejected by the star contains about the same amount of mass as all the <a href=\"&quot;https:\/\/www.skyatnightmagazine.com\/space-science\/planets-solar-system-guide\/&quot;\">planets in our Solar System<\/a>.<\/p>\n<p class=\"&quot;p1&quot;\">These expanding shell patterns could be a result of cycles of activity that the star is experiencing, just like our own Sun\u2019s <a href=\"&quot;https:\/\/www.skyatnightmagazine.com\/space-science\/understanding-sun-science-solar-cycle\/&quot;\">solar cycle<\/a>.<\/p>\n<p class=\"&quot;p1&quot;\">Or perhaps the material is being ejected smoothly, but the rings are generated at a later stage by waves rippling through the expanding material.<\/p>\n<h2 class=\"&quot;p1&quot;\"><strong>How to see the Cat\u2019s Eye Nebula from Earth<\/strong><\/h2>\n<div class=\"&quot;image-handler__container\" image-handler__container--full=\"\" style=\"&quot;padding-bottom:\" calc=\"\"> <picture><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2020\/12\/Ursa-Major-Minor-Draco-e9cf828.jpg?webp=true&amp;quality=90&amp;resize=300%2C220,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2020\/12\/Ursa-Major-Minor-Draco-e9cf828.jpg?quality=90&amp;resize=300%2C220,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2020\/12\/Ursa-Major-Minor-Draco-e9cf828.jpg?webp=true&amp;quality=90&amp;resize=355%2C261,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2020\/12\/Ursa-Major-Minor-Draco-e9cf828.jpg?quality=90&amp;resize=355%2C261,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2020\/12\/Ursa-Major-Minor-Draco-e9cf828.jpg?webp=true&amp;quality=90&amp;resize=405%2C297,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2020\/12\/Ursa-Major-Minor-Draco-e9cf828.jpg?quality=90&amp;resize=405%2C297,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2020\/12\/Ursa-Major-Minor-Draco-e9cf828.jpg?webp=true&amp;quality=90&amp;resize=554%2C407,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2020\/12\/Ursa-Major-Minor-Draco-e9cf828.jpg?quality=90&amp;resize=554%2C407,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2020\/12\/Ursa-Major-Minor-Draco-e9cf828.jpg?webp=true&amp;quality=90&amp;resize=620%2C455,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2020\/12\/Ursa-Major-Minor-Draco-e9cf828.jpg?quality=90&amp;resize=620%2C455,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2020\/12\/Ursa-Major-Minor-Draco-e9cf828.jpg?webp=true&amp;quality=90&amp;resize=408%2C299,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2020\/12\/Ursa-Major-Minor-Draco-e9cf828.jpg?quality=90&amp;resize=408%2C299,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2020\/12\/Ursa-Major-Minor-Draco-e9cf828.jpg?webp=true&amp;quality=90&amp;resize=556%2C408,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2020\/12\/Ursa-Major-Minor-Draco-e9cf828.jpg?quality=90&amp;resize=556%2C408,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><img class=\"&quot;wp-image-56943\" align=\"\" size-full=\"\" image-handler__image=\"\" image-handler__image--full=\"\" no-wrap=\"\" js-lazyload=\"\" data-src=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2020\/12\/Ursa-Major-Minor-Draco-e9cf828.jpg?quality=90&amp;resize=620%2C455&quot;\" width=\"&quot;1500&quot;\" height=\"&quot;1101&quot;\" alt=\"&quot;&quot;\" title=\"&quot;&quot;\"\/><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div><div class=\"&quot;caption-hold&quot;\"><figcaption class=\"&quot;wp-caption-text&quot;\"><span class=\"&quot;caption-copy&quot;\"><i class=\"&quot;icon-arrow\" icon-camera-circle=\"\"\/> Chart showing the location of the Cat\u2019s Eye Nebula in Draco. Credit: Pete Lawrence<\/span><\/figcaption><span class=\"&quot;im-image-caption&quot;\"\/><\/div>\n<p class=\"&quot;p3&quot;\"><span class=\"&quot;s1&quot;\">You can see the Cat\u2019s Eye Nebula (NGC6543) from Earth by locating the constellation Draco and observing the nebula through a small telescope.<\/span><\/p>\n<p class=\"&quot;p3&quot;\"><span class=\"&quot;s1&quot;\">This bright planetary nebula is a favourite of astronomers, given its interesting shape and structure.<\/span><\/p>\n<p class=\"&quot;p3&quot;\"><span class=\"&quot;s1&quot;\">Higher-powered telescopes will reveal a blue-green disc that is spectacular, and makes it really worth tracking the nebula down.<\/span><\/p>\n<h2 class=\"&quot;p3&quot;\"><strong><span class=\"&quot;s1&quot;\">Photographing the Cat\u2019s Eye Nebula<\/span><\/strong><\/h2>\n<div class=\"&quot;image-handler__container\" image-handler__container--full=\"\" style=\"&quot;padding-bottom:\" calc=\"\"> <picture><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2023\/03\/cats-eye-nebula-image-af192ad.jpg?webp=true&amp;quality=90&amp;resize=300%2C224,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2023\/03\/cats-eye-nebula-image-af192ad.jpg?quality=90&amp;resize=300%2C224,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2023\/03\/cats-eye-nebula-image-af192ad.jpg?webp=true&amp;quality=90&amp;resize=355%2C265,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2023\/03\/cats-eye-nebula-image-af192ad.jpg?quality=90&amp;resize=355%2C265,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2023\/03\/cats-eye-nebula-image-af192ad.jpg?webp=true&amp;quality=90&amp;resize=405%2C303,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2023\/03\/cats-eye-nebula-image-af192ad.jpg?quality=90&amp;resize=405%2C303,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2023\/03\/cats-eye-nebula-image-af192ad.jpg?webp=true&amp;quality=90&amp;resize=554%2C414&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2023\/03\/cats-eye-nebula-image-af192ad.jpg?quality=90&amp;resize=554%2C414&quot;\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2023\/03\/cats-eye-nebula-image-af192ad.jpg?webp=true&amp;quality=90&amp;resize=620%2C463&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2023\/03\/cats-eye-nebula-image-af192ad.jpg?quality=90&amp;resize=620%2C463&quot;\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2023\/03\/cats-eye-nebula-image-af192ad.jpg?webp=true&amp;quality=90&amp;resize=408%2C305,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2023\/03\/cats-eye-nebula-image-af192ad.jpg?quality=90&amp;resize=408%2C305,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2023\/03\/cats-eye-nebula-image-af192ad.jpg?webp=true&amp;quality=90&amp;resize=556%2C415&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2023\/03\/cats-eye-nebula-image-af192ad.jpg?quality=90&amp;resize=556%2C415&quot;\" type=\"&quot;image\/jpeg&quot;\"><img class=\"&quot;wp-image-117336\" align=\"\" size-full=\"\" image-handler__image=\"\" image-handler__image--full=\"\" no-wrap=\"\" js-lazyload=\"\" data-src=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2023\/03\/cats-eye-nebula-image-af192ad.jpg?quality=90&amp;resize=620%2C463&quot;\" width=\"&quot;1000&quot;\" height=\"&quot;747&quot;\" alt=\"&quot;&quot;\" title=\"&quot;&quot;\"\/><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div><div class=\"&quot;caption-hold&quot;\"><figcaption class=\"&quot;wp-caption-text&quot;\"><span class=\"&quot;caption-copy&quot;\"><i class=\"&quot;icon-arrow\" icon-camera-circle=\"\"\/> The Cat\u2019s Eye Nebula photographed by Franz Klauser \/ CCDGuide.com<\/span><\/figcaption><span class=\"&quot;im-image-caption&quot;\"\/><\/div>\n<p class=\"&quot;p5&quot;\"><span class=\"&quot;s1&quot;\">The simplest camera set-up for photographing a planetary nebula is probably a DSLR camera and a medium focal-length lens on a static tripod.<\/span><\/p>\n<p class=\"&quot;p5&quot;\"><span class=\"&quot;s1&quot;\">The Cat\u2019s Eye Nebula is just about bright enough that, if you can get to reasonably dark skies, you should be able to pick up signs of it with that setup.<\/span><\/p>\n<p class=\"&quot;p5&quot;\"><span class=\"&quot;s1&quot;\">Try a <a href=\"&quot;https:\/\/www.skyatnightmagazine.com\/astrophotography\/stars\/star-trails-how-to\/&quot;\"><span class=\"&quot;s2&quot;\">star trail<\/span><\/a>-style shot, in which you take multiple long-ish exposures \u2013 30-seconds at least \u2013 and stack them together with star trail-creation software.<\/span><\/p>\n<p class=\"&quot;p5&quot;\"><span class=\"&quot;s1&quot;\">You should see that the Cat\u2019s Eye Nebula stands out from the stars as a greenish-blue arc.<\/span><\/p> <\/body><\/html>\n<hr class=\"no-tts wp-block-separator\"\/>","protected":false},"excerpt":{"rendered":"<p> Facts about the Cat&#8217;s Eye Nebula and how to observe and photograph it from Earth. <\/p>\n","protected":false},"author":24,"featured_media":43488,"template":"","categories":[34],"acf":{"readingTimeMinutes":"3"},"uagb_featured_image_src":{"full":["https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2023\/03\/a-guide-to-the-cats-eye-nebula.jpg",1200,800,false],"thumbnail":["https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2023\/03\/a-guide-to-the-cats-eye-nebula-150x150.jpg",150,150,true],"medium":["https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2023\/03\/a-guide-to-the-cats-eye-nebula-300x200.jpg",300,200,true],"medium_large":["https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2023\/03\/a-guide-to-the-cats-eye-nebula-768x512.jpg",768,512,true],"large":["https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2023\/03\/a-guide-to-the-cats-eye-nebula-1024x683.jpg",800,534,true],"1536x1536":["https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2023\/03\/a-guide-to-the-cats-eye-nebula.jpg",1200,800,false],"2048x2048":["https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2023\/03\/a-guide-to-the-cats-eye-nebula.jpg",1200,800,false]},"uagb_author_info":{"display_name":"importmanagerhub@sprylab.com","author_link":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/author\/importmanagerhubsprylab-com\/"},"uagb_comment_info":0,"uagb_excerpt":"Facts about the Cat's Eye Nebula and how to observe and photograph it from Earth.","_links":{"self":[{"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/rss_feed\/43487"}],"collection":[{"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/rss_feed"}],"about":[{"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/types\/rss_feed"}],"author":[{"embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/users\/24"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/media\/43488"}],"wp:attachment":[{"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/media?parent=43487"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/categories?post=43487"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}