{"id":500,"date":"2009-11-03T00:30:00","date_gmt":"2009-11-03T00:30:00","guid":{"rendered":"http:\/\/perezmedia.net\/beltofvenus\/2009\/11\/03\/ptolemaeus_and\/"},"modified":"2021-11-28T01:28:38","modified_gmt":"2021-11-28T01:28:38","slug":"ptolemaeus_and","status":"publish","type":"post","link":"https:\/\/perezmedia.net\/beltofvenus\/2009\/11\/03\/ptolemaeus_and\/","title":{"rendered":"Ptolemaeus and Surroundings"},"content":{"rendered":"<p style=\"text-align: center\"><a href=\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/images\/2009\/img2009082701_Ptolemaeuslg.jpg\" onmouseover=\"rollover('img2009082701')\" onmouseout=\"rollout('img2009082701')\"><img decoding=\"async\" src=\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/images\/2009\/img2009082701_PtolemaeusA.jpg\" name=\"img2009082701\" alt=\"Sketch of Ptolemaeus and Surroundings\" border=\"1\" color=\"FFFFFF\"><\/a><br \/>\n<script type=\"text\/javascript\"><br \/>\n<!--\nsetrollover(\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/images\/2009\/img2009082701_PtolemaeusB.jpg\");\n\/\/--><br \/>\n<\/script><\/p>\n<p style=\"text-align: center\"><b>Sketch of Ptolemaeus and Surroundings<\/b><br \/>\n<i>Move mouse over sketch to see labels. Click image for larger version.<\/i><\/p>\n<p><b>Observation Notes:<\/b><\/p>\n<p>Despite the bad seeing, Ptolemaeus and friends were large and stark enough to put on a good show at 120X. An interesting pillar of shadow within Ptolemaeus seemed bulbous at its tip. It seems likely that this little feature is caused by crater Ammonius. Sp\u00f6rer was a fairly rugged crater compared to deep Herschel. Lunar curvature was beautifully obvious across Ptolemaeus&#8217; expansive floor.<\/p>\n<table class=\"objectdata\">\n<tbody>\n<tr>\n<td><b>Subject<\/b><\/td>\n<td class=\"subject\">Ptolemaeus and Surroundings<\/td>\n<\/tr>\n<tr>\n<td><b>Classification<\/b><\/td>\n<td>Craters<\/td>\n<\/tr>\n<tr>\n<td><b>Position<\/b><\/td>\n<td>9.2\u00b0S, 1.8\u00b0W<\/td>\n<\/tr>\n<tr>\n<td><b>Phase\/Age<\/b><\/td>\n<td>8.1 Days \/ 57% Illuminated<\/td>\n<\/tr>\n<tr>\n<td><b>Size*<\/b><\/td>\n<td>Ptolemaeus: 153 km dia x 2400 m depth<br \/>\nAmmonius: 9 km dia x 1850 m depth<br \/>\nAlphonsus B<br \/>\nHerschel: 41 km dia x 3770 m depth<br \/>\nSp\u00f6rer: 28 km dia x 310 m depth<br \/>\nGylden: 47 km dia<\/td>\n<\/tr>\n<tr>\n<td><b>Date\/Time<\/b><\/td>\n<td>AUG 27, 2009, 10:00 PM MST (AUG 28, 2009, 05:00 UT)<\/td>\n<\/tr>\n<tr>\n<td><b>Observing Loc.<\/b><\/td>\n<td>Flagstaff, AZ &#8211; Home<\/td>\n<\/tr>\n<tr>\n<td><b>Instrument<\/b><\/td>\n<td>Orion SkyQuest XT8 (203 mm dia.\/1200 mm F\/L)<\/td>\n<\/tr>\n<tr>\n<td><b>Eyepieces\/Mag.<\/b><\/td>\n<td>Pentax XW10 (120X)<\/td>\n<\/tr>\n<tr>\n<td><b>Conditions<\/b><\/td>\n<td>Mostly clear, calm<\/td>\n<\/tr>\n<tr>\n<td><b>Seeing<\/b><\/td>\n<td>Ant. IV<\/td>\n<\/tr>\n<tr>\n<td><b>Sources<\/b><\/td>\n<td><i>Atlas of the Moon<\/i> by Anton\u00ed\u00adn R\u00fckl 2004<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>* Based on published data.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ptolemaeus and Surroundings<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[13,14,15],"tags":[],"class_list":["post-500","post","type-post","status-publish","format-standard","hentry","category-lunar","category-sg-lunar","category-sketch-gallery"],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":501,"url":"https:\/\/perezmedia.net\/beltofvenus\/2009\/11\/04\/drawn_to_the_un_7\/","url_meta":{"origin":500,"position":0},"title":"Drawn to the UniverseNOV 2009 &#8211; Ptolemaeus and Surroundings","author":"jperez1690","date":"November 4, 2009","format":false,"excerpt":"The Lunar crater, Ptolemaeus is the subject of the November 2009 Drawn to the Universe column. The focus is on creating a crater sketch along the rapidly changing terminator. In the tutorial, we use of 2H and HB pencils to shade the deep shadows and lighter surrounding terrain, while using\u2026","rel":"","context":"In &quot;Article&quot;","block_context":{"text":"Article","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/article\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":56,"url":"https:\/\/perezmedia.net\/beltofvenus\/2004\/11\/19\/alphonsus_and_a\/","url_meta":{"origin":500,"position":1},"title":"Alphonsus and Arzachel Craters","author":"jperez1690","date":"November 19, 2004","format":false,"excerpt":"Alphonsus and Arzachel","rel":"","context":"In &quot;Lunar&quot;","block_context":{"text":"Lunar","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/lunar\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":28,"url":"https:\/\/perezmedia.net\/beltofvenus\/2004\/09\/05\/observing_repor_2\/","url_meta":{"origin":500,"position":2},"title":"Observing Report &#8211; 09.05.2004","author":"jperez1690","date":"September 5, 2004","format":false,"excerpt":"20040905_01","rel":"","context":"In &quot;Observing Report&quot;","block_context":{"text":"Observing Report","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/observing-report\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":330,"url":"https:\/\/perezmedia.net\/beltofvenus\/2007\/05\/19\/vallis_schroter\/","url_meta":{"origin":500,"position":3},"title":"Vallis Schr&ouml;teri and Surroundings","author":"jperez1690","date":"May 19, 2007","format":false,"excerpt":"Vallis Schroteri and Surroundings","rel":"","context":"In &quot;Lunar&quot;","block_context":{"text":"Lunar","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/lunar\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":494,"url":"https:\/\/perezmedia.net\/beltofvenus\/2009\/10\/04\/bullialdus_and\/","url_meta":{"origin":500,"position":4},"title":"Bullialdus and Surroundings","author":"jperez1690","date":"October 4, 2009","format":false,"excerpt":"Bullialdus and Surroundings","rel":"","context":"In &quot;Lunar&quot;","block_context":{"text":"Lunar","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/lunar\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":50,"url":"https:\/\/perezmedia.net\/beltofvenus\/2004\/10\/24\/j_herschel_crat\/","url_meta":{"origin":500,"position":5},"title":"J. Herschel Crater","author":"jperez1690","date":"October 24, 2004","format":false,"excerpt":"J. Herschel","rel":"","context":"In &quot;Lunar&quot;","block_context":{"text":"Lunar","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/lunar\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/500","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/comments?post=500"}],"version-history":[{"count":1,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/500\/revisions"}],"predecessor-version":[{"id":913,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/500\/revisions\/913"}],"wp:attachment":[{"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/media?parent=500"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/categories?post=500"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/tags?post=500"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}