{"id":43838,"date":"2023-04-18T14:13:18","date_gmt":"2023-04-18T14:13:18","guid":{"rendered":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/?post_type=purple_issue&#038;p=43838"},"modified":"2023-04-27T14:55:12","modified_gmt":"2023-04-27T14:55:12","slug":"the-sky-guide-challenge-20","status":"publish","type":"post","link":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/2023\/04\/18\/the-sky-guide-challenge-20\/","title":{"rendered":"The Sky Guide challenge"},"content":{"rendered":"\n<p class=\"has-text-align-center\">This one\u2019s tricky: try to photograph Jupiter during its daytime meeting with the Moon <\/p>\n\n<div class=\"no-tts wp-block-image article-in-image bild\"><figure class=\"no-tts aligncenter\"><img loading=\"lazy\" width=\"2048\" height=\"1550\" src=\"https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2023\/04\/a5f6750e-78a6-47ce-a5cc-dd0f40ca3caf.jpg\" alt=\"\" class=\"no-tts wp-image-43837\" srcset=\"https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2023\/04\/a5f6750e-78a6-47ce-a5cc-dd0f40ca3caf.jpg 2048w, https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2023\/04\/a5f6750e-78a6-47ce-a5cc-dd0f40ca3caf-300x227.jpg 300w, https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2023\/04\/a5f6750e-78a6-47ce-a5cc-dd0f40ca3caf-1024x775.jpg 1024w, https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2023\/04\/a5f6750e-78a6-47ce-a5cc-dd0f40ca3caf-768x581.jpg 768w, https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2023\/04\/a5f6750e-78a6-47ce-a5cc-dd0f40ca3caf-1536x1163.jpg 1536w\" sizes=\"(max-width: 2048px) 100vw, 2048px\" \/><figcaption>Take great care as the Sun will be up and relatively close by. Observing from safely inside the shadow of a building is a good strategy<\/figcaption><\/figure><\/div>\n\n<p class=\"article-full-body sans-serif\">There\u2019s no denying that the occultation or close pass (depending on your location) event with the Moon and Jupiter on 17 May will be hard to observe as it takes place during daylight hours. However, given clear skies, Jupiter can definitely be seen in a blue sky, either using binoculars or through a telescope. Your challenge this month is to go one further and try to photograph the planet. <\/p>\n\n<p class=\"article-full-body sans-serif\">A daylight sky will greatly reduce contrast in the visible spectrum, but as long as you can locate Jupiter, switching to an infrared pass filter combined with an infrared-sensitive camera should make it possible to improve the view. If you don\u2019t have such equipment, don\u2019t worry. It\u2019s still possible to get an unfiltered shot of the planet using a DSLR, but you may need to work a bit harder to separate its dim, low-contrast disc from the sky. <\/p>\n\n<p class=\"article-full-body sans-serif\">The event on 17 May will have the benefit of the Moon being nearby, but even this may be challenging. With a waning crescent phase at 7% illumination, the Moon too will appear quite indistinct against the blue sky. <\/p>\n\n<p class=\"article-full-body sans-serif\">There are various ways to locate the Moon. The easiest is to catch it earlier as it rises in darker skies. This is around 04:30 BST (03:30 UT) from the centre of the UK. Using a polar-aligned equatorial telescope mount, you\u2019ll need to set the drive to its lunar rate, then centre the view on the Moon\u2019s disc. If you\u2019re unsure about the precision of the polar alignment, you\u2019ll need to schedule in periodic checks. <\/p>\n\n<p class=\"article-full-body sans-serif\">Another method is to estimate where the Moon will be at a set time and try to locate it that way. At 11:24 BST (10:24 UT), the Moon will appear at an altitude around 47\u00b0 due south. This should give you enough information to get into the general area. As ever, take great care when looking as the Sun will be up and relatively close by. Observing from safely inside the shadow of a building so the Sun can\u2019t be seen is a good strategy to keep safe. <\/p>\n\n<p class=\"article-full-body sans-serif\">Once you have managed to locate the Moon, Jupiter should be a lot easier to find. Just be prepared for its disc to be extremely low in contrast, almost a ghost of its nighttime self. Use the Moon as your focus target, taking care to focus as accurately as possible. The sky can be bright, but don\u2019t allow it to overexpose or you won\u2019t be able to recover the planet. Once taken, adjust the levels of the image using your favourite image-editing program, darkening the sky with the mid-point slider and tweaking to bring out weak Jupiter at its best. <\/p>\n\n<p class=\"footer\">PHOTO: PETE LAWRENCE<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This one\u2019s tricky: try to photograph Jupiter during its daytime meeting with the Moon <\/p>\n","protected":false},"author":24,"featured_media":43837,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ub_ctt_via":"","purple_page_number":"55","purple_custom_meta_purple_page_number":"55","purple_seq_number":"1","purple_custom_meta_purple_seq_number":"1","purple_source_article":"article_55-1.xml","purple_custom_meta_purple_source_article":"article_55-1.xml","purple_source_issue":"May-2023","purple_custom_meta_purple_source_issue":"May-2023","purple_external_id":"May-2023-55-1","purple_custom_meta_purple_external_id":"May-2023-55-1","purple_issue_code":"|0000086564||","purple_custom_meta_purple_issue_code":"|0000086564||","purple_android_product":"com.im.skyatnight.216","purple_custom_meta_purple_android_product":"com.im.skyatnight.216","purple_ios_product":"com.im.skyatnight.216","purple_custom_meta_purple_ios_product":"com.im.skyatnight.216","purple_web_product":"","purple_custom_meta_purple_web_product":"","purple_publication_id":"075fab74-0a21-4201-866a-899d6c41c40c","purple_migrated":"","kt_blocks_editor_width":""},"categories":[22],"tags":[14],"featured_image_src":"https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2023\/04\/a5f6750e-78a6-47ce-a5cc-dd0f40ca3caf.jpg","author_info":{"display_name":"importmanagerhub@sprylab.com","author_link":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/author\/importmanagerhubsprylab-com\/"},"acf":{"readingTimeMinutes":"3","apple_news_title":""},"uagb_featured_image_src":{"full":["https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2023\/04\/a5f6750e-78a6-47ce-a5cc-dd0f40ca3caf.jpg",2048,1550,false],"thumbnail":["https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2023\/04\/a5f6750e-78a6-47ce-a5cc-dd0f40ca3caf-150x150.jpg",150,150,true],"medium":["https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2023\/04\/a5f6750e-78a6-47ce-a5cc-dd0f40ca3caf-300x227.jpg",300,227,true],"medium_large":["https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2023\/04\/a5f6750e-78a6-47ce-a5cc-dd0f40ca3caf-768x581.jpg",768,581,true],"large":["https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2023\/04\/a5f6750e-78a6-47ce-a5cc-dd0f40ca3caf-1024x775.jpg",800,605,true],"1536x1536":["https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2023\/04\/a5f6750e-78a6-47ce-a5cc-dd0f40ca3caf-1536x1163.jpg",1536,1163,true],"2048x2048":["https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2023\/04\/a5f6750e-78a6-47ce-a5cc-dd0f40ca3caf.jpg",2048,1550,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":"This one\u2019s tricky: try to photograph Jupiter during its daytime meeting with the Moon","_links":{"self":[{"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/posts\/43838"}],"collection":[{"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/users\/24"}],"replies":[{"embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/comments?post=43838"}],"version-history":[{"count":6,"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/posts\/43838\/revisions"}],"predecessor-version":[{"id":44399,"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/posts\/43838\/revisions\/44399"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/media\/43837"}],"wp:attachment":[{"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/media?parent=43838"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/categories?post=43838"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/tags?post=43838"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}