{"id":2,"date":"2018-06-26T13:22:57","date_gmt":"2018-06-26T17:22:57","guid":{"rendered":"https:\/\/people.bsu.edu\/rberring\/?page_id=2"},"modified":"2023-09-06T16:10:46","modified_gmt":"2023-09-06T20:10:46","slug":"variable_star_research","status":"publish","type":"page","link":"https:\/\/people.bsu.edu\/rberring\/variable_star_research\/","title":{"rendered":"Variable Star Research"},"content":{"rendered":"<table style=\"width: 100%\">\n<tbody>\n<tr>\n<td style=\"width: 100%;text-align: left;border: 1px solid white\">Advancements in robotic telescopes has permitted the development of large-area surveys that cover large portions of the celestial sphere. \u00a0Large-area surveys like the <a href=\"http:\/\/www.astrouw.edu.pl\/asas\/\">All-Sky Automated Survey<\/a> (ASAS) and the <a href=\"https:\/\/skydot.lanl.gov\/nsvs\/nsvs.php\">Northern Sky Variability Survey<\/a> (NSVS) have changed the discovery of variable stars from the historically serendipitous discoveries to systematic searches. \u00a0With these systematic searches, large numbers of variable stars have been discovered to fainter magnitudes. \u00a0While these large-area surveys are good at discovering large-amplitude variable systems, the large number of newly discovered systems with the short periodicity and the observational cadence of the surveys makes the knowledge gained limited.<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 100%;text-align: left;border: 1px solid white\">Our group targets these systems with short periods that have not been targeted by prior studies. \u00a0It is the goal of our group to provide a comprehensive systematic study of these systems that cannot be provided by the large-area surveys due to the observational cadence of the large area surveys (1-2 times a day). \u00a0Studies with high observational cadence like the ones provided by our group can develop a comprehensive picture of these systems and greatly enhance the knowledge gained. \u00a0The large-area surveys are very good at discovering large amplitude stellar variability, but our work complements these surveys by providing a comprehensive picture.<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 100%;text-align: center;border: 1px solid white\" bgcolor=\"#BA0C2F\">\n<h2><span style=\"color: #ffffff\">Analysis procedure<\/span><\/h2>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 100%;text-align: left;border: 1px solid white\">We are in the process if developing a software analysis package to facilitate the analysis of our systems. All systems that are targeted by <a href=\"https:\/\/people.bsu.edu\/rberring\/main\/variable_star_team\/\">our research group<\/a> are analyzed the <a href=\"https:\/\/eclipsingbinaries.readthedocs.io\/en\/latest\/index.html\">EclipsingBinaries<\/a> python package. <em>Please note:<\/em> the python package is a continual work in progress. If you are interested in using the software package yourself, you can read the <a href=\"https:\/\/eclipsingbinaries.readthedocs.io\/en\/latest\/installation.html\">installation instructions<\/a>. If you are interested in contributing to the <em>EclipsingBinaries<\/em> project you can <a href=\"http:\/\/www.bsu.edu\/Components\/People\/Layouts\/ViewEmailV2.aspx?pid=251376\">contact me<\/a> for further details on how to contribute.<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 100%;text-align: center;border: 1px solid white\" bgcolor=\"#BA0C2F\">\n<h2><span style=\"color: #ffffff\">Objects Observed<\/span><\/h2>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 100%;text-align: left;border: 1px solid white\">The number of variable stars that our team has investigated is continually evolving, but to date the list of stars with light curves is given in Table 1.\u00a0 If you are interested in becoming a member of an <a href=\"http:\/\/people.bsu.edu\/rberring\/main\/variable_star_research\/variable_star_team\/\">active and enthusiastic team of like-minded researchers<\/a>, or would like further information regarding what we do and the recent results of individual objects can be found below, please feel free to <a href=\"https:\/\/www.bsu.edu\/Components\/People\/Layouts\/ViewEmailV2.aspx?pid=251376\">contact me<\/a>.<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 100%;text-align: center;border: 1px solid white\"><iframe loading=\"lazy\" src=\"https:\/\/docs.google.com\/spreadsheets\/d\/e\/2PACX-1vTFcLsliNDw7ryPrr10y7vHJYw614VZQ9f4TbkpWTVxntDp2AqFpe02zc1sQ1NG4VAwwCgtYwTbfFL9\/pubhtml?widget=true&amp;headers=false\" width=\"100%\" height=\"500\"><span style=\"width: 0px;overflow: hidden;line-height: 0\" class=\"mce_SELRES_start\">\ufeff<\/span><\/iframe><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 100%;text-align: left;border: 1px solid white\"><strong>Table 1:<\/strong> Variable stars observed by the Berrington Research Group. Stars are sorted by type of variability. Table contains additional information on each star indicting sky position, observability, and orbital phase. <em>Nota Bene (NB)<\/em>: Not all ephemerides may be correct, and will depend on observer location and time of observation.<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 100%;text-align: center;border: 1px solid white\">\n<h3><span style=\"color: #000000\">Results of individual objects<\/span><\/h3>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 100%;text-align: left;border: 1px solid white\">Stars that we have targeted to date are listed above. \u00a0Recent results presented by <a href=\"https:\/\/people.bsu.edu\/rberring\/main\/variable_star_team\/\">our research group<\/a> are listed below.\u00a0 <em>NB:<\/em> all pages that follow are works in progress. We post results as we have them.\u00a0 Links are to pages devoted to presenting the results of individual stellar systems.\u00a0 Any poster presentations and papers that have resulted from the work are given at the bottom of each page.<\/p>\n<ol>\n<li><a href=\"https:\/\/people.bsu.edu\/rberring\/variable_star_research\/asas-j061151-4519-7\/\">ASAS J061151-4519.7<\/a> [<a href=\"http:\/\/simbad.cfa.harvard.edu\/simbad\/sim-id?Ident=UCAC2+12368218&amp;submit=submit+id\"><span style=\"color: #000000\">\u03b1=06:11:50.8, \u03b4=-45:19:43<\/span><\/a>, J2000.0] Researcher:\u00a0<a href=\"https:\/\/people.bsu.edu\/rberring\/people\/caleb-whitcomb\/\">Caleb Whitcomb<\/a><\/li>\n<li><a href=\"https:\/\/people.bsu.edu\/rberring\/main\/variable_star_research\/nsvs-254037\/\">NSVS 254037<\/a> [<span style=\"color: #000000\"><a style=\"color: #000000\" href=\"http:\/\/simbad.u-strasbg.fr\/simbad\/sim-basic?Ident=nsvs+254037&amp;submit=SIMBAD+search\">\u03b1=00:28:28.0, \u03b4=+78:57:42.7<\/a><\/span>, J2000.0] Researcher:\u00a0<a href=\"https:\/\/people.bsu.edu\/rberring\/people\/kyle-koeller\/\">Kyle Koeller<\/a>,\u00a0<a href=\"https:\/\/people.bsu.edu\/rberring\/people\/ian-efsits\/\">Ian Efsits<\/a><\/li>\n<li><a href=\"https:\/\/people.bsu.edu\/rberring\/main\/variable_star_research\/nsvs-269017\/\">NSVS 269017<\/a> [\u03b1=01:41:16.5, \u03b4=+80:04:21.7, J2000.0] Researcher: <a href=\"https:\/\/people.bsu.edu\/rberring\/people\/tyler-redfern\/\">Tyler Redfern<\/a>, <a href=\"https:\/\/people.bsu.edu\/rberring\/people\/austin-speedy\/\">Austin Speedy<\/a><\/li>\n<li><a href=\"https:\/\/people.bsu.edu\/rberring\/main\/variable_star_research\/nsvs-801195\/\">NSVS 801195<\/a> [<span style=\"color: #000000\"><a style=\"color: #000000\" href=\"http:\/\/simbad.u-strasbg.fr\/simbad\/sim-id?Ident=NSVS+801195&amp;submit=submit+id\">\u03b1=11:00:53.9, \u03b4=+75:33:11.3<\/a><\/span>, J2000.0] Researcher: <a href=\"https:\/\/people.bsu.edu\/rberring\/people\/elijah-halliwell\/\">Elijah Halliwell<\/a><\/li>\n<li><a href=\"https:\/\/people.bsu.edu\/rberring\/main\/variable_star_research\/nsvs-896797\/\">NSVS 896797<\/a> [<span style=\"color: #000000\"><a style=\"color: #000000\" href=\"http:\/\/simbad.u-strasbg.fr\/simbad\/sim-basic?Ident=nsvs+4161544&amp;submit=SIMBAD+search\">\u03b1=13:27:50.5, \u03b4=+75:39:45.4<\/a><\/span>, J2000.0] Researcher: <a href=\"https:\/\/people.bsu.edu\/rberring\/people\/kyle-koeller\/\">Kyle Koeller<\/a><\/li>\n<li><a href=\"https:\/\/people.bsu.edu\/rberring\/nsvs-1088506\/\">NSVS 1088506<\/a> [<a href=\"http:\/\/simbad.u-strasbg.fr\/simbad\/sim-basic?Ident=nsvs+1088506&amp;submit=SIMBAD+search\">\u03b1=17:12:12.11 \u03b4=+68:33:24.1<\/a>, J2000.0] Researcher: <a href=\"https:\/\/people.bsu.edu\/rberring\/people\/alexander-canner\/\">Alexander Canner<\/a>, <a href=\"https:\/\/people.bsu.edu\/rberring\/people\/caleb-whitcomb\/\">Caleb Whitcomb<\/a><\/li>\n<li><a href=\"https:\/\/people.bsu.edu\/rberring\/main\/variable_star_research\/nsvs-2827877\/\">NSVS 2827877<\/a> [<span style=\"color: #000000\"><a style=\"color: #000000\" href=\"http:\/\/simbad.u-strasbg.fr\/simbad\/sim-basic?Ident=nsvs+2827877&amp;submit=SIMBAD+search\">\u03b1=16:27:44.2, \u03b4=+56:45:59.2<\/a><\/span>, J2000.0] Researcher: <a href=\"https:\/\/people.bsu.edu\/rberring\/people\/alexander-thomas\/\">Alexander Thomas<\/a><\/li>\n<li><a href=\"https:\/\/people.bsu.edu\/rberring\/main\/variable_star_research\/nsvs-2854398\/\">NSVS 2854398<\/a> [<a href=\"http:\/\/simbad.u-strasbg.fr\/simbad\/sim-basic?Ident=nsvs+2854398&amp;submit=SIMBAD+search\"><span style=\"color: #000000\">\u03b1=16:42:15.8, \u03b4=+66:07:03.5<\/span><\/a>, J2000.0] Researcher: <a href=\"https:\/\/people.bsu.edu\/rberring\/people\/alec-neal\/\">Alec Neal<\/a><\/li>\n<li><a href=\"https:\/\/people.bsu.edu\/rberring\/main\/variable_star_research\/nsvs-2910034\/\">NSVS 2910034<\/a> [\u03b1=17:15:39.2, \u03b4=+58:51:52.2, J2000.0] Researcher: <a href=\"https:\/\/people.bsu.edu\/rberring\/people\/r-wes-tobin\/\">Wes Tobin<\/a>, Olivia Krugman<\/li>\n<li><a href=\"https:\/\/people.bsu.edu\/rberring\/main\/variable_star_research\/nsvs-3350218\/\">NSVS 3350218<\/a> [<span style=\"color: #000000\"><a style=\"color: #000000\" href=\"http:\/\/simbad.u-strasbg.fr\/simbad\/sim-id?Ident=nsvs+3350218&amp;submit=submit+id\">\u03b1=22:11:14.5, \u03b4=+66:02:16.2<\/a><\/span>, J2000.0] Researcher: <a href=\"https:\/\/people.bsu.edu\/rberring\/people\/richard-gorby\/\">Richard Gorby<\/a>, <a href=\"https:\/\/people.bsu.edu\/rberring\/people\/hanbit-lee\/\">Hanbit Lee<\/a><\/li>\n<li><a href=\"https:\/\/people.bsu.edu\/rberring\/nsvs-3792718\/\">NSVS 3792718<\/a> [<span style=\"color: #000000\"><a style=\"color: #000000\" href=\"http:\/\/simbad.u-strasbg.fr\/simbad\/sim-basic?Ident=nsvs+3792718&amp;submit=SIMBAD+search\">\u03b1=00:50:46.7, \u03b4=+41:50:15.4<\/a><\/span>, J2000.0] Researcher: <a href=\"https:\/\/people.bsu.edu\/rberring\/people\/alec-neal\/\">Alec Neal<\/a><\/li>\n<li><a href=\"https:\/\/people.bsu.edu\/rberring\/nsvs-3820264\/\">NSVS 3820264<\/a> [<span style=\"color: #000000\"><a style=\"color: #000000\" href=\"http:\/\/simbad.u-strasbg.fr\/simbad\/sim-id?Ident=nsvs+3820264&amp;submit=submit+id\">\u03b1=01:20:53.0 \u03b4=+43:38:57.4<\/a><\/span>, J2000.0] Researcher: <a href=\"https:\/\/people.bsu.edu\/rberring\/people\/alexander-thomas\/\">Alexander Thomas<\/a><\/li>\n<li><a href=\"https:\/\/people.bsu.edu\/rberring\/nsvs-4161544\/\">NSVS 4161544<\/a> [<span style=\"color: #000000\"><a style=\"color: #000000\" href=\"http:\/\/simbad.u-strasbg.fr\/simbad\/sim-basic?Ident=nsvs+4161544&amp;submit=SIMBAD+search\">\u03b1=03:26:38.9, \u03b4=+42:43:24.8<\/a><\/span>, J2000.0] Researcher: <a href=\"https:\/\/people.bsu.edu\/rberring\/people\/tyler-redfern\/\">Tyler Redfern<\/a><\/li>\n<li><a href=\"https:\/\/people.bsu.edu\/rberring\/main\/variable_star_research\/nsvs-4312042\/\">NSVS 4312042<\/a> [\u03b1=04:55:19.6, \u03b4=+45:14:21.0, J2000.0] Researcher: <a href=\"https:\/\/people.bsu.edu\/rberring\/people\/r-wes-tobin\/\">Wes Tobin<\/a><\/li>\n<li><a href=\"https:\/\/people.bsu.edu\/rberring\/nsvs-5196635\/\">NSVS 5196635<\/a> [<span style=\"color: #000000\"><a style=\"color: #000000\" href=\"http:\/\/simbad.u-strasbg.fr\/simbad\/sim-basic?Ident=nsvs+5196635&amp;submit=SIMBAD+search\">\u03b1=15:57:05.3, \u03b4=+50:05:27.9<\/a><\/span>, J2000.0] Researcher: <a href=\"https:\/\/people.bsu.edu\/rberring\/people\/nate-sparrow\/\">Nate Sparrow<\/a><\/li>\n<li><a href=\"https:\/\/people.bsu.edu\/rberring\/variable_star_research\/nsvs-5214334\/\">NSVS 5214334<\/a> [<a href=\"http:\/\/simbad.cfa.harvard.edu\/simbad\/sim-id?Ident=nsvs+5214334&amp;NbIdent=1&amp;Radius=2&amp;Radius.unit=arcmin&amp;submit=submit+id\"><span style=\"color: #000000\">\u03b1=16:15:06.0, \u03b4=+44:58:21.7<\/span><\/a>, J2000.0] Researcher: <a href=\"https:\/\/people.bsu.edu\/rberring\/people\/alec-neal\/\">Alec Neal<\/a><\/li>\n<li><a href=\"https:\/\/people.bsu.edu\/rberring\/nsvs-6099331\/\">NSVS 6099331<\/a> [<a href=\"http:\/\/simbad.u-strasbg.fr\/simbad\/sim-basic?Ident=nsvs+6099331&amp;submit=SIMBAD+search\">\u03b1=22:25:16.03 \u03b4=+41:27:51.99<\/a>, J2000.0] Researcher: <a href=\"https:\/\/people.bsu.edu\/rberring\/people\/lauren-wines\/\">Lauren Wines<\/a>, <a href=\"https:\/\/people.bsu.edu\/rberring\/people\/madeline-shepley\/\">Madeline Shepley<\/a><\/li>\n<li><a href=\"https:\/\/people.bsu.edu\/rberring\/variable_star_research\/nsvs-6103255\/\">NSVS 6103255<\/a> [<a href=\"http:\/\/simbad.u-strasbg.fr\/simbad\/sim-id?Ident=nsvs+6103255&amp;NbIdent=1&amp;Radius=2&amp;Radius.unit=arcmin&amp;submit=submit+id\">\u03b1=22:29:35.20 \u03b4=+37:57:31.44<\/a>, J2000.0] Researcher: <a href=\"https:\/\/people.bsu.edu\/rberring\/people\/melanie-isenbarger\/\">Melanie Isenbarger<\/a><\/li>\n<\/ol>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>Advancements in robotic telescopes has permitted the development of large-area surveys that cover large portions of the celestial sphere. \u00a0Large-area surveys like the All-Sky Automated Survey (ASAS) and the Northern Sky Variability Survey (NSVS) have changed the discovery of variable stars from the historically serendipitous discoveries to systematic searches. \u00a0With these systematic searches, large numbers [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":33,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"template-page\/page-full-width.php","meta":{"footnotes":""},"class_list":["post-2","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Variable Star Research - Berrington Research Group<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/people.bsu.edu\/rberring\/variable_star_research\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Variable Star Research - Berrington Research Group\" \/>\n<meta property=\"og:description\" content=\"Advancements in robotic telescopes has permitted the development of large-area surveys that cover large portions of the celestial sphere. \u00a0Large-area surveys like the All-Sky Automated Survey (ASAS) and the Northern Sky Variability Survey (NSVS) have changed the discovery of variable stars from the historically serendipitous discoveries to systematic searches. \u00a0With these systematic searches, large 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Cepheid variables are pulsating stars that brighten and fade in a predictable pattern. The illustrated graph shows that V1 completes a pulsation cycle every 31.4 days. The red dots on the graph represent observations by the American Association of Variable Star Observers (AAVSO), who partnered with the Space Telescope Science Institute's Hubble Heritage Project to study the star. The four stars on the graph denote observations made by the Hubble Space Telescope's Wide Field Camera 3. Ten amateur astronomers from around the world made 214 observations of V1 between July 2010 and December 2010, obtaining four pulsation cycles. The AAVSO study allowed the Hubble Heritage team to target Hubble observations that would capture the star at its brightest and dimmest phases.\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/people.bsu.edu\\\/rberring\\\/variable_star_research\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/people.bsu.edu\\\/rberring\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Variable Star Research\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/people.bsu.edu\\\/rberring\\\/#website\",\"url\":\"https:\\\/\\\/people.bsu.edu\\\/rberring\\\/\",\"name\":\"Berrington Research Group\",\"description\":\"--Per intellectu est ambulabimus ad astra.\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/people.bsu.edu\\\/rberring\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Variable Star Research - Berrington Research Group","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/people.bsu.edu\/rberring\/variable_star_research\/","og_locale":"en_US","og_type":"article","og_title":"Variable Star Research - Berrington Research Group","og_description":"Advancements in robotic telescopes has permitted the development of large-area surveys that cover large portions of the celestial sphere. \u00a0Large-area surveys like the All-Sky Automated Survey (ASAS) and the Northern Sky Variability Survey (NSVS) have changed the discovery of variable stars from the historically serendipitous discoveries to systematic searches. \u00a0With these systematic searches, large numbers [&hellip;]","og_url":"https:\/\/people.bsu.edu\/rberring\/variable_star_research\/","og_site_name":"Berrington Research Group","article_publisher":"https:\/\/www.facebook.com\/robert.c.berrington","article_modified_time":"2023-09-06T20:10:46+00:00","og_image":[{"width":1280,"height":985,"url":"https:\/\/assets.people.bsu.edu\/wp-content\/uploads\/sites\/5\/2018\/07\/10094351\/opo1115e.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_site":"@rberring","twitter_misc":{"Est. reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/people.bsu.edu\/rberring\/variable_star_research\/","url":"https:\/\/people.bsu.edu\/rberring\/variable_star_research\/","name":"Variable Star Research - Berrington Research Group","isPartOf":{"@id":"https:\/\/people.bsu.edu\/rberring\/#website"},"primaryImageOfPage":{"@id":"https:\/\/people.bsu.edu\/rberring\/variable_star_research\/#primaryimage"},"image":{"@id":"https:\/\/people.bsu.edu\/rberring\/variable_star_research\/#primaryimage"},"thumbnailUrl":"https:\/\/bsu-wpe-people.s3.amazonaws.com\/wp-content\/uploads\/sites\/5\/2018\/07\/10094351\/opo1115e.jpg","datePublished":"2018-06-26T17:22:57+00:00","dateModified":"2023-09-06T20:10:46+00:00","breadcrumb":{"@id":"https:\/\/people.bsu.edu\/rberring\/variable_star_research\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/people.bsu.edu\/rberring\/variable_star_research\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/people.bsu.edu\/rberring\/variable_star_research\/#primaryimage","url":"https:\/\/bsu-wpe-people.s3.amazonaws.com\/wp-content\/uploads\/sites\/5\/2018\/07\/10094351\/opo1115e.jpg","contentUrl":"https:\/\/bsu-wpe-people.s3.amazonaws.com\/wp-content\/uploads\/sites\/5\/2018\/07\/10094351\/opo1115e.jpg","width":1280,"height":985,"caption":"This illustration shows the rhythmic rise and fall of starlight from the Cepheid variable star V1 over a seven-month period. Cepheid variables are pulsating stars that brighten and fade in a predictable pattern. The illustrated graph shows that V1 completes a pulsation cycle every 31.4 days. The red dots on the graph represent observations by the American Association of Variable Star Observers (AAVSO), who partnered with the Space Telescope Science Institute's Hubble Heritage Project to study the star. The four stars on the graph denote observations made by the Hubble Space Telescope's Wide Field Camera 3. Ten amateur astronomers from around the world made 214 observations of V1 between July 2010 and December 2010, obtaining four pulsation cycles. The AAVSO study allowed the Hubble Heritage team to target Hubble observations that would capture the star at its brightest and dimmest phases."},{"@type":"BreadcrumbList","@id":"https:\/\/people.bsu.edu\/rberring\/variable_star_research\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/people.bsu.edu\/rberring\/"},{"@type":"ListItem","position":2,"name":"Variable Star Research"}]},{"@type":"WebSite","@id":"https:\/\/people.bsu.edu\/rberring\/#website","url":"https:\/\/people.bsu.edu\/rberring\/","name":"Berrington Research Group","description":"--Per intellectu est ambulabimus ad astra.","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/people.bsu.edu\/rberring\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"https:\/\/people.bsu.edu\/rberring\/wp-json\/wp\/v2\/pages\/2","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/people.bsu.edu\/rberring\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/people.bsu.edu\/rberring\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/people.bsu.edu\/rberring\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/people.bsu.edu\/rberring\/wp-json\/wp\/v2\/comments?post=2"}],"version-history":[{"count":0,"href":"https:\/\/people.bsu.edu\/rberring\/wp-json\/wp\/v2\/pages\/2\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/people.bsu.edu\/rberring\/wp-json\/wp\/v2\/media\/33"}],"wp:attachment":[{"href":"https:\/\/people.bsu.edu\/rberring\/wp-json\/wp\/v2\/media?parent=2"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}