{"id":450,"date":"2008-12-06T21:03:31","date_gmt":"2008-12-06T21:03:31","guid":{"rendered":"http:\/\/perezmedia.net\/beltofvenus\/2008\/12\/06\/jupitereuropa_t\/"},"modified":"2021-11-28T01:14:09","modified_gmt":"2021-11-28T01:14:09","slug":"jupitereuropa_t","status":"publish","type":"post","link":"https:\/\/perezmedia.net\/beltofvenus\/2008\/12\/06\/jupitereuropa_t\/","title":{"rendered":"Jupiter-Europa Transit: DEC 6\/7, 2008"},"content":{"rendered":"<div class=\"imageblock\">\n<a href=\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/images\/2008\/img2008120601_JupiterLG.jpg\" onmouseover=\"rollover('img2008120601')\" onmouseout=\"rollout('img2008120601')\"><img decoding=\"async\" src=\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/images\/2008\/img2008120601_JupiterA.jpg\" name=\"img2008120601\" alt=\"Digital Sketch: Jupiter-Europa Transit Entry\" border=\"1\" color=\"FFFFFF\"><\/a><br \/>\n<script type=\"text\/javascript\"><br \/>\n<!--\nsetrollover(\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/images\/2008\/img2008120601_JupiterB.jpg\");\n\/\/--><br \/>\n<\/script><\/p>\n<p class=\"caption\">Digital Sketch: Jupiter-Europa Transit Entry<\/p>\n<p class=\"subcaption\">Move mouse over sketch above to view Europa&#8217;s motion.<br \/>\nClick for larger version.<\/p>\n<\/div>\n<p><b>Observation Notes:<\/b><\/p>\n<p>I brought the telescope out at sunset to view the moon and Venus with the kids. I tried to locate Jupiter in the still-bright sky with no success. I went inside to check Starry Night Pro to get a better relative position of Venus to Jupiter when I noticed a transit of Europa was due in another 20 minutes. With a better idea of Jupiter&#8217;s position, I was able to find it and noticed Europa about to plunge into the planet&#8217;s disc.<\/p>\n<p>Europa was entering Jupiter&#8217;s softer, shadowed side, so it was difficult to tell when the moon first entered the Jovian profile. I estimated first contact at 5:30 pm local time (APR 7, 2008 &#8211; 00:30 UT). It&#8217;s funny how at this stage, Europa looked like a zit on Jupiter&#8217;s wide, fuzzy cheek. Six minutes later, the moon finally seemed to melt into the planet. Not much further to the east, the bright, ruddy spot that was Io, also made progress against a denim-blue sky toward a transit of its own.<\/p>\n<p>Europa&#8217;s shadow was due to begin a transit 40 minutes later. I tried to view it, but by that time, Jupiter was too low and the view much too blurry to make out any hint of a shadow. It was still an enjoyable, and in my opinion, impressive event to witness. The above image is a digital sketch based on a rough drawing that I did on the back of a used envelope.<\/p>\n<table class=\"objectdata\">\n<tbody>\n<tr>\n<td><b>Subject<\/b><\/td>\n<td class=\"subject\">Jupiter-Europa Transit Entry<\/td>\n<\/tr>\n<tr>\n<td><b>Classification<\/b><\/td>\n<td>Planet<\/td>\n<\/tr>\n<tr>\n<td><b>Position*<\/b><\/td>\n<td>Sagittarius [RA: 19:40:47.9 \/ Dec: -021:48:27]<\/td>\n<\/tr>\n<tr>\n<td><b>Size*<\/b><\/td>\n<td>34&#8243; (Equatorial diameter)<\/td>\n<\/tr>\n<tr>\n<td><b>Brightness*<\/b><\/td>\n<td>-1.97<\/td>\n<\/tr>\n<tr>\n<td><b>Date\/Time<\/b><\/td>\n<td>DEC 6, 2008 &#8211; 5:30 &#8211; 5:36 PM<br \/>\n(DEC 7, 2008 &#8211; 00:30 &#8211; 00:36 UT)<\/td>\n<\/tr>\n<tr>\n<td><b>Observing Loc.<\/b><\/td>\n<td>Flagstaff, Arizona, USA &#8211; Home<\/td>\n<\/tr>\n<tr>\n<td><b>Instrument<\/b><\/td>\n<td>Orion SkyQuest XT8 Dobsonian (203 mm dia.\/1200 mm F\/L)<\/td>\n<\/tr>\n<tr>\n<td><b>Eyepieces\/Mag.<\/b><\/td>\n<td>Pentax XW 10 + 2X Barlow (240X)<\/td>\n<\/tr>\n<tr>\n<td><b>Conditions<\/b><\/td>\n<td>Clear, cool<\/td>\n<\/tr>\n<tr>\n<td><b>Seeing<\/b><\/td>\n<td>3\/10<\/td>\n<\/tr>\n<tr>\n<td><b>Transparency<\/b><\/td>\n<td>Twilight &#8211; Mag 1 NELM<\/td>\n<\/tr>\n<tr>\n<td><b>*Sources<\/b><\/td>\n<td>Starry Night Pro Plus 5.8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>Jupiter-Europa Transit: 20081206<\/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":[44,68,69,15],"tags":[],"class_list":["post-450","post","type-post","status-publish","format-standard","hentry","category-planetary","category-sg-jupiter","category-sg-planetary","category-sketch-gallery"],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":112,"url":"https:\/\/perezmedia.net\/beltofvenus\/2005\/03\/09\/jupiter_march_9\/","url_meta":{"origin":450,"position":0},"title":"Jupiter &#8211; March 9, 2005","author":"jperez1690","date":"March 9, 2005","format":false,"excerpt":"Jupiter 20050309","rel":"","context":"In &quot;Planetary&quot;","block_context":{"text":"Planetary","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/planetary\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":481,"url":"https:\/\/perezmedia.net\/beltofvenus\/2009\/07\/23\/jupiter_impact\/","url_meta":{"origin":450,"position":1},"title":"Jupiter, Impact Scar, Callisto, and Shadow Transit &#8211; JUL 23, 2009 09:00 UT","author":"jperez1690","date":"July 23, 2009","format":false,"excerpt":"Sketch of Jupiter, Callisto, Impact Scar and Shadow Transit Click image to view larger version. Observation Notes: Jupiter put on a great show tonight! The impact feature is still hanging on and was readily visible through my 8 inch Dob at 120X and 240X. The best part was the addition\u2026","rel":"","context":"In &quot;Planetary&quot;","block_context":{"text":"Planetary","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/planetary\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":308,"url":"https:\/\/perezmedia.net\/beltofvenus\/2006\/12\/10\/conjunction_of\/","url_meta":{"origin":450,"position":2},"title":"Conjunction of Mercury, Mars, Jupiter, and Beta Scorpii","author":"jperez1690","date":"December 10, 2006","format":false,"excerpt":"Conjunction of Mercury, Mars, Jupiter, and Beta Scorpii","rel":"","context":"In &quot;Planetary&quot;","block_context":{"text":"Planetary","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/planetary\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":483,"url":"https:\/\/perezmedia.net\/beltofvenus\/2009\/08\/27\/jupiter_with_tr\/","url_meta":{"origin":450,"position":3},"title":"Jupiter and Transits &#8211; AUG 27, 2009 04:45 UT","author":"jperez1690","date":"August 27, 2009","format":false,"excerpt":"Sketch of Jupiter, Europa + Shadow, Ganymede + Shadow, and Io Move mouse over image to view labels. Click to view larger version. Observation Notes: I enjoyed a beautiful dance between Jupiter, three moons and two shadows. 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