{"id":467,"date":"2009-04-23T23:16:48","date_gmt":"2009-04-23T23:16:48","guid":{"rendered":"http:\/\/perezmedia.net\/beltofvenus\/2009\/04\/23\/h-alpha_solar_a\/"},"modified":"2021-11-28T01:20:52","modified_gmt":"2021-11-28T01:20:52","slug":"h-alpha_solar_a","status":"publish","type":"post","link":"https:\/\/perezmedia.net\/beltofvenus\/2009\/04\/23\/h-alpha_solar_a\/","title":{"rendered":"Solar H-Alpha: APR 24, 2009 &#8211; 00:55 UT"},"content":{"rendered":"<div class=\"imageblock\"><a href=\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/images\/2009\/img2009042301_Solarlg.jpg\" onmouseover=\"rollover('img2009042301')\" onmouseout=\"rollout('img2009042301')\"><img decoding=\"async\" src=\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/images\/2009\/img2009042301_SolarA.jpg\" name=\"img2009042301\" alt=\"Solar H-Alpha Sketch - APR 24, 2009 - 00:55 UT\"><\/a><br \/>\n<script type=\"text\/javascript\"><br \/>\n<!--\nsetrollover(\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/images\/2009\/img2009042301_SolarB.jpg\");\n\/\/--><br \/>\n<\/script><\/p>\n<p class=\"caption\">H-Alpha Solar Sketch<\/p>\n<p><i>Move mouse over sketch above to view labels<br \/>\nClick image for larger version.<\/i><\/p>\n<\/div>\n<p><b>Observation Notes:<\/b><\/p>\n<p>Today was first light for the new Coronado PST that arrived this morning. The views were excellent, and although there were no sunspots to study, a number of prominences decorated the limb. It was amazing to watch how quickly they changed from minute to minute. The strongest of the bunch was at PA 215\u00b0, standing like a pillar and fluttering southward at the tip. I broke out the astrometric eyepiece and measured it at 1\/31 solar diameter, or 28,000 miles (41,000 km) in height. A dirigible of plasma levitated consistently at PA 260\u00b0 and remained there during a half hour of observing. Another at PA 65\u00b0 began as a bright lump that rapidly developed a polyp that separated and flowed downward like a drop of red food coloring entering water.<\/p>\n<p>I wasn&#8217;t planning on a sketch, but I couldn&#8217;t help it. I used digital tools to add color, glow, and mottling. I&#8217;m not sure if I&#8217;ll stick with that format down the road, but it&#8217;s a starting point. I have a lot to learn!<\/p>\n<p>[Edit APR 25, 2009]: I realized that the PST does not mirror the image as I assumed it did. I have flipped my sketch to the correct orientation and have fixed my PA estimates to match.<\/p>\n<table class=\"objectdata\">\n<tbody>\n<tr>\n<td><b>Subject<\/b><\/td>\n<td class=\"subject\">Solar H-Alpha<\/td>\n<\/tr>\n<tr>\n<td><b>Sunspots<\/b><\/td>\n<td>0<\/td>\n<\/tr>\n<tr>\n<td><b>Sunspot Groups<\/b><\/td>\n<td>0<\/td>\n<\/tr>\n<tr>\n<td><b>Date\/Time<\/b><\/td>\n<td>APR 23, 2009 05:55 &#8211; 06:22 PM MST<br \/>\n(APR 24, 2009 00:55 &#8211; 01:22 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>Coronado PST &#8211; 40 mm f\/10<\/td>\n<\/tr>\n<tr>\n<td><b>Eyepieces\/Mag.<\/b><\/td>\n<td>Pentax XW 10 (40X); Meade Astrometric Eyepiece (33X)<\/td>\n<\/tr>\n<tr>\n<td><b>Conditions<\/b><\/td>\n<td>Partly Cloudy, Breezy<\/td>\n<\/tr>\n<tr>\n<td><b>Seeing<\/b><\/td>\n<td>Ant. III<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>Solar 2009042301<\/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":[97,15,98],"tags":[],"class_list":["post-467","post","type-post","status-publish","format-standard","hentry","category-sg-solar","category-sketch-gallery","category-solar"],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":498,"url":"https:\/\/perezmedia.net\/beltofvenus\/2009\/10\/25\/solar_h-alpha_o\/","url_meta":{"origin":467,"position":0},"title":"Solar H-Alpha: OCT 25, 2009 &#8211; 21:00 UT","author":"jperez1690","date":"October 25, 2009","format":false,"excerpt":"Solar 2009102501","rel":"","context":"In &quot;SG-Solar&quot;","block_context":{"text":"SG-Solar","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/sg-solar\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":489,"url":"https:\/\/perezmedia.net\/beltofvenus\/2009\/09\/27\/solar_h-alpha_s\/","url_meta":{"origin":467,"position":1},"title":"Solar H-Alpha: SEP 27, 2009 &#8211; 21:15 UT","author":"jperez1690","date":"September 27, 2009","format":false,"excerpt":"Solar 2009092701","rel":"","context":"In &quot;SG-Solar&quot;","block_context":{"text":"SG-Solar","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/sg-solar\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":470,"url":"https:\/\/perezmedia.net\/beltofvenus\/2009\/05\/03\/solar_h-alpha_m\/","url_meta":{"origin":467,"position":2},"title":"Solar H-Alpha: MAY 3, 2009 &#8211; 18:30 UT","author":"jperez1690","date":"May 3, 2009","format":false,"excerpt":"Solar 2009050301","rel":"","context":"In &quot;SG-Solar&quot;","block_context":{"text":"SG-Solar","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/sg-solar\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":574,"url":"https:\/\/perezmedia.net\/beltofvenus\/2011\/07\/28\/drawn_to_the_un_23\/","url_meta":{"origin":467,"position":3},"title":"Drawn to the UniverseJUNE 2011 &#8211; H-Alpha Solar","author":"jperez1690","date":"July 28, 2011","format":false,"excerpt":"H-Alpha Sketch of SunClick image to view larger version. Subject:H-Alpha Sun Issue:June 2011 Astronomy Now Basic Media:Graphite and erasers white stock Featured Technique:Preparing an H-Alpha Solar Sketch that captures surface features and prominences along the limb. Suggested Sketching Materials: Clipboard and acid-free drawing paper HB and 2H graphite pencils Charcoal\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":585,"url":"https:\/\/perezmedia.net\/beltofvenus\/2012\/06\/08\/transit_of_venu\/","url_meta":{"origin":467,"position":4},"title":"Transit of Venus &#8211; June 5\/6, 2012","author":"jperez1690","date":"June 8, 2012","format":false,"excerpt":"H-Alpha view of the Venus Transit - June 5, 2012 - 22:51 UT Wow! Two amazing solar events within a couple weeks of each other--Annular Eclipse and Venus Transit! The first bookend Venus transit occurred during the summer of 2004, a couple months before I got my first telescope and\u2026","rel":"","context":"In &quot;Observing Report&quot;","block_context":{"text":"Observing Report","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/observing-report\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/perezmedia.net\/beltofvenus\/wp-content\/uploads\/2012\/06\/img20120605_IMG_7842-Edit_md-e1703478999248.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":584,"url":"https:\/\/perezmedia.net\/beltofvenus\/2012\/05\/22\/annular_solar_e\/","url_meta":{"origin":467,"position":5},"title":"Annular Solar Eclipse &#8211; Monument Valley &#8211; May 20, 2012","author":"jperez1690","date":"May 22, 2012","format":false,"excerpt":"The annular eclipse that skidded out of Asia, across the Pacific and into the Western US put on a great show Sunday afternoon. We drove up to Monument Valley and set up on the side of the dirt road that runs through the monument. Eclipse watchers were everywhere, viewing with\u2026","rel":"","context":"In &quot;Lunar&quot;","block_context":{"text":"Lunar","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/lunar\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/perezmedia.net\/beltofvenus\/wp-content\/uploads\/2012\/05\/img20120520_IMG_7709_md.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/467","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=467"}],"version-history":[{"count":1,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/467\/revisions"}],"predecessor-version":[{"id":903,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/467\/revisions\/903"}],"wp:attachment":[{"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/media?parent=467"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/categories?post=467"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/tags?post=467"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}