{"id":2112,"date":"2019-01-13T16:31:33","date_gmt":"2019-01-13T16:31:33","guid":{"rendered":"http:\/\/www.star-gazing.co.uk\/WebPage\/?p=2112"},"modified":"2019-01-19T15:14:25","modified_gmt":"2019-01-19T15:14:25","slug":"lunar-eclipse-20190121","status":"publish","type":"post","link":"https:\/\/www.star-gazing.co.uk\/WebPage\/lunar-eclipse-20190121\/","title":{"rendered":"Total Lunar Eclipse &#8211; 21st January 2019."},"content":{"rendered":"<p>In the early hours of Monday the 21st of January there is a total lunar eclipse.<br \/>\nThis is caused by The Moon moving through The Earth&#8217;s shadow.<br \/>\nThe Sun, Earth and Moon are completely lined up in a straight line, with The Earth in the middle.<\/p>\n<p>Here&#8217;s a composite image of a lunar eclipse taken in 2007.<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium_large wp-image-2175\" src=\"http:\/\/www.star-gazing.co.uk\/WebPage\/wp-content\/uploads\/2019\/01\/Lunar-Eclipse-flattenedSingleForWeb-768x207.jpg\" alt=\"\" width=\"768\" height=\"207\" srcset=\"https:\/\/www.star-gazing.co.uk\/WebPage\/wp-content\/uploads\/2019\/01\/Lunar-Eclipse-flattenedSingleForWeb-768x207.jpg 768w, https:\/\/www.star-gazing.co.uk\/WebPage\/wp-content\/uploads\/2019\/01\/Lunar-Eclipse-flattenedSingleForWeb-600x162.jpg 600w, https:\/\/www.star-gazing.co.uk\/WebPage\/wp-content\/uploads\/2019\/01\/Lunar-Eclipse-flattenedSingleForWeb-300x81.jpg 300w, https:\/\/www.star-gazing.co.uk\/WebPage\/wp-content\/uploads\/2019\/01\/Lunar-Eclipse-flattenedSingleForWeb-1024x276.jpg 1024w, https:\/\/www.star-gazing.co.uk\/WebPage\/wp-content\/uploads\/2019\/01\/Lunar-Eclipse-flattenedSingleForWeb-210x57.jpg 210w, https:\/\/www.star-gazing.co.uk\/WebPage\/wp-content\/uploads\/2019\/01\/Lunar-Eclipse-flattenedSingleForWeb.jpg 1500w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/p>\n<p>The complete eclipse is visible from the UK, although you will need to stay up until the early hours of the morning to view it.\u00a0That is if the weather decides to co-operate with us.<\/p>\n<p>At the start of the eclipse, The Moon will be 46\u00b0 above the south-western horizon.<br \/>\nAs the eclipse progresses, The Moon will get lower and lower in the sky.<br \/>\nAt the end of the eclipse The Moon will very low in the north-western sky.<br \/>\nMake sure that you take this into account and view the eclipse with a clear horizon in this direction if you want to see it right up until the end.<\/p>\n<p>For more details about the eclipse <strong><a href=\"http:\/\/www.eclipsewise.com\/lunar\/LEprime\/2001-2100\/LE2019Jan21Tprime.html\" target=\"_blank\" rel=\"noopener\">click here<\/a> <\/strong>to visit Fred Espanek&#8217;s fabulous Web site for more details:<\/p>\n<p>To learn how to photograph the Eclipse visit <strong><a href=\"https:\/\/astrobackyard.com\/supermoon-lunar-eclipse\/?fbclid=IwAR0-VSER7VFcDp-EJULAzFs7dEf0t8fFcTmyo0qnNmuZwrTjy1UIyemdRSw\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #ffffff;\">AstroBackYard&#8217;s<\/span> <\/a><\/strong>Web site by <a href=\"https:\/\/astrobackyard.com\/supermoon-lunar-eclipse\/?fbclid=IwAR0-VSER7VFcDp-EJULAzFs7dEf0t8fFcTmyo0qnNmuZwrTjy1UIyemdRSw\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #ffffff;\"><strong>clicking here.<\/strong><\/span><\/a><\/p>\n<p>The diagram below shows how the Moon goes into the Earth&#8217;s shadow.<br \/>\nI have added the times that The Moon reaches crucial points during the eclipse.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-2116\" src=\"http:\/\/www.star-gazing.co.uk\/WebPage\/wp-content\/uploads\/2019\/01\/LunarEclipse-20190121-768x650.png\" alt=\"\" width=\"529\" height=\"448\" srcset=\"https:\/\/www.star-gazing.co.uk\/WebPage\/wp-content\/uploads\/2019\/01\/LunarEclipse-20190121-768x650.png 768w, https:\/\/www.star-gazing.co.uk\/WebPage\/wp-content\/uploads\/2019\/01\/LunarEclipse-20190121-600x508.png 600w, https:\/\/www.star-gazing.co.uk\/WebPage\/wp-content\/uploads\/2019\/01\/LunarEclipse-20190121-300x254.png 300w, https:\/\/www.star-gazing.co.uk\/WebPage\/wp-content\/uploads\/2019\/01\/LunarEclipse-20190121-210x178.png 210w, https:\/\/www.star-gazing.co.uk\/WebPage\/wp-content\/uploads\/2019\/01\/LunarEclipse-20190121.png 900w\" sizes=\"auto, (max-width: 529px) 100vw, 529px\" \/><\/p>\n<p><strong><span style=\"color: #ffffff;\">02:36<\/span> <span style=\"color: #ffffff;\">&#8211; The eclipse begins.<\/span><\/strong><br \/>\nAt this time The Moon&#8217;s limb touches the outer penumbral part of the Earth&#8217;s shadow.<br \/>\nIt will slip gradually into this fainter shadow, but any change in brightness as the Sun&#8217;s direct light is cut off is unlikely to be noticed until it gets much deeper into the penumbra.<\/p>\n<p>When The Moon is deepest into the penumbra, you may be able to see a bit of darkening of the left hand limb at this stage.<br \/>\nThis is more noticeable if you take a slightly under-exposed image of the Moon just before the partial umbral phase begins.<\/p>\n<p><strong><span style=\"color: #ffffff;\">03:33<\/span> <span style=\"color: #ffffff;\">&#8211;\u00a0The Moon reaches the Earth&#8217;s darker umbral shadow.<\/span><\/strong><br \/>\nAt this time the drop-off of light on that side of The Moon is very dramatic as all direct light from the Sun is prevented from reaching the surface.<\/p>\n<p>There will be very little colour for a while, but within about 30 minutes, as more of The Moon goes into the umbra, we should hopefully be able to see some red colour starting to appear on the Moon. The only light reaching the Moon&#8217;s surface within the Umbra is passing through the Earth&#8217;s atmosphere. Most of the blue in the sunlight is scattered in the Earth&#8217;s atmosphere, so predominantly red coloured light reaches the lunar surface.<\/p>\n<p>The further The Moon moves into the umbra, the darker and redder it will become.<\/p>\n<p><span style=\"color: #ffffff;\">How dark will The Moon get?<\/span><br \/>\nThat depends on two things:<\/p>\n<p>1. How deep The Moon goes into the umbra.<br \/>\nDuring this eclipse The Moon passes a little bit north of the central shadow, so will be a bit brighter than other eclipses where the path is more central.<\/p>\n<p>2. Cloud cover around the limb of The Earth. The more cloud there is, the less light reaches The Moon.<br \/>\nOf course we have trouble doing local weather forecasts, so don&#8217;t expect a forecast for around the whole circumference of The Earth!<\/p>\n<p><strong><span style=\"color: #ffffff;\">04:41 <\/span><span style=\"color: #ffffff;\">&#8211;\u00a0<\/span><span style=\"color: #ffffff;\">Totality begins.<\/span><\/strong><br \/>\nThe Moon is now completely within The Earth&#8217;s umbral shadow.<br \/>\nNo direct light from the Sun reaches the lunar surface.<br \/>\nHopefully we will now have a lovely glowing red Moon shining in the only light reaching the Moons surface.<br \/>\nAs the ruddy Moon is a lot fainter than normal, longer exposures can be used to reveal the star background behind The Moon, without over-exposing it. These make for great images.<\/p>\n<p>Also look out for a turquoise tinge at the beginning and end of totality, which is light passing through The Earth&#8217;s ozone layer.<br \/>\nSee the image I took below during the 2015 lunar eclipse which shows this effect really well.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-2126\" src=\"http:\/\/www.star-gazing.co.uk\/WebPage\/wp-content\/uploads\/2019\/01\/DSC_0306-1-768x630.jpg\" alt=\"\" width=\"428\" height=\"351\" srcset=\"https:\/\/www.star-gazing.co.uk\/WebPage\/wp-content\/uploads\/2019\/01\/DSC_0306-1-768x630.jpg 768w, https:\/\/www.star-gazing.co.uk\/WebPage\/wp-content\/uploads\/2019\/01\/DSC_0306-1-600x492.jpg 600w, https:\/\/www.star-gazing.co.uk\/WebPage\/wp-content\/uploads\/2019\/01\/DSC_0306-1-300x246.jpg 300w, https:\/\/www.star-gazing.co.uk\/WebPage\/wp-content\/uploads\/2019\/01\/DSC_0306-1-210x172.jpg 210w, https:\/\/www.star-gazing.co.uk\/WebPage\/wp-content\/uploads\/2019\/01\/DSC_0306-1.jpg 1000w\" sizes=\"auto, (max-width: 428px) 100vw, 428px\" \/><\/p>\n<p>The area of the lunar limb towards the edge of the shadow (north) may appear to be a bit brighter throughout totality as it is not so deep within the umbra.<\/p>\n<p>This is especially pronounced at the beginning and end of totality, when the Moon is closer to the edge of the umbra.<\/p>\n<p>An long exposure of the eclipse from the 28th of September 2015, showing background stars.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium_large wp-image-2178\" src=\"http:\/\/www.star-gazing.co.uk\/WebPage\/wp-content\/uploads\/2019\/01\/EclipsedMoon28092015ForWeb-768x514.png\" alt=\"\" width=\"768\" height=\"514\" srcset=\"https:\/\/www.star-gazing.co.uk\/WebPage\/wp-content\/uploads\/2019\/01\/EclipsedMoon28092015ForWeb-768x514.png 768w, https:\/\/www.star-gazing.co.uk\/WebPage\/wp-content\/uploads\/2019\/01\/EclipsedMoon28092015ForWeb-600x401.png 600w, https:\/\/www.star-gazing.co.uk\/WebPage\/wp-content\/uploads\/2019\/01\/EclipsedMoon28092015ForWeb-300x201.png 300w, https:\/\/www.star-gazing.co.uk\/WebPage\/wp-content\/uploads\/2019\/01\/EclipsedMoon28092015ForWeb-1024x685.png 1024w, https:\/\/www.star-gazing.co.uk\/WebPage\/wp-content\/uploads\/2019\/01\/EclipsedMoon28092015ForWeb-210x140.png 210w, https:\/\/www.star-gazing.co.uk\/WebPage\/wp-content\/uploads\/2019\/01\/EclipsedMoon28092015ForWeb.png 1500w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/p>\n<p><span style=\"color: #ffffff;\"><strong>05:13\u00a0<\/strong>&#8211;<strong> Maximum Eclipse.<\/strong><\/span><br \/>\nWe are now halfway through the eclipse.<br \/>\nSo now time to make the most of the next 30 minutes we have left of totality.<\/p>\n<p>Just before totality ends,\u00a0don&#8217;t forget to look out for that turquoise tinge, which is light passing through The Earth&#8217;s ozone layer.<\/p>\n<p><span style=\"color: #ffffff;\"><strong>05:43 &#8211;<\/strong> <strong>Totality ends.<\/strong><br \/>\n<\/span>The Moon has now started to move back into the lighter shadow of the penumbra.<br \/>\nSome direct sunlight is now hitting the lunar surface.<br \/>\nThe brighter lit portion of The Moon gradually gets bigger until direct sunlight reaches all parts of The Moon&#8217;s visible disk.<br \/>\nAny red colour which may have been visible will fade as the portion directly lit by The Sun increases.<\/p>\n<p><span style=\"color: #ffffff;\"><strong>06:50<\/strong> &#8211; <strong>Second penumbral phase begins.<\/strong><br \/>\n<\/span>A repeat of the first penumbral phase of the eclipse now plays out in reverse.<br \/>\nBy this time, The Moon is getting very low in the north-western sky.<\/p>\n<p><span style=\"color: #ffffff;\"><strong>But don&#8217;t forget to look behind you (Yes, it&#8217;s that season!).<\/strong><br \/>\nVenus and Jupiter will be visible over in the eastern sky, shining like bright beacons.<\/span><\/p>\n<p>The sky should now be getting brighter as dawn approaches.<\/p>\n<p><span style=\"color: #ffffff;\"><strong>07:48<\/strong> &#8211; <strong>Penumbral Eclipse ends. The end of the eclipse.<\/strong><br \/>\n<\/span>The show is now all over.<\/p>\n<p>Hopefully, if the clouds co-operated, we will all be very happy, but very tired bunnies.<\/p>\n<p>The sky will be very bright and it will be either time to go to bed, or to get ready to go to work.<br \/>\nI&#8217;ve got a few planetarium shows to do that day!<\/p>\n<p>Here&#8217;s hoping for some happy eclipsing.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the early hours of Monday the 21st of January there is a total lunar eclipse. This is caused by The Moon moving through The Earth&#8217;s shadow. The Sun, Earth and Moon are completely lined up in a straight line, with The Earth in the middle. Here&#8217;s a composite image of a lunar eclipse taken [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"slim_seo":{"title":"Total Lunar Eclipse - 21st January 2019. - Star-Gazing","description":"In the early hours of Monday the 21st of January there is a total lunar eclipse. This is caused by The Moon moving through The Earth's shadow. The Sun, Earth an"},"footnotes":""},"categories":[3,1],"tags":[],"class_list":["post-2112","post","type-post","status-publish","format-standard","hentry","category-blog","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/www.star-gazing.co.uk\/WebPage\/wp-json\/wp\/v2\/posts\/2112","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.star-gazing.co.uk\/WebPage\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.star-gazing.co.uk\/WebPage\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.star-gazing.co.uk\/WebPage\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.star-gazing.co.uk\/WebPage\/wp-json\/wp\/v2\/comments?post=2112"}],"version-history":[{"count":21,"href":"https:\/\/www.star-gazing.co.uk\/WebPage\/wp-json\/wp\/v2\/posts\/2112\/revisions"}],"predecessor-version":[{"id":2180,"href":"https:\/\/www.star-gazing.co.uk\/WebPage\/wp-json\/wp\/v2\/posts\/2112\/revisions\/2180"}],"wp:attachment":[{"href":"https:\/\/www.star-gazing.co.uk\/WebPage\/wp-json\/wp\/v2\/media?parent=2112"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.star-gazing.co.uk\/WebPage\/wp-json\/wp\/v2\/categories?post=2112"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.star-gazing.co.uk\/WebPage\/wp-json\/wp\/v2\/tags?post=2112"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}