{"id":10103,"date":"2015-03-11T07:00:30","date_gmt":"2015-03-11T11:00:30","guid":{"rendered":"http:\/\/hobbyspace.com\/Blog\/?p=10103"},"modified":"2015-03-11T01:13:22","modified_gmt":"2015-03-11T05:13:22","slug":"eso-a-grand-extravaganza-of-new-stars-in-the-altar","status":"publish","type":"post","link":"https:\/\/hobbyspace.com\/Blog\/?p=10103","title":{"rendered":"ESO: A grand extravaganza of new stars in The Altar"},"content":{"rendered":"

The latest cool astronomical\u00a0report from the European Southern Observatory<\/a> (ESO):<\/p>\n

A Grand Extravaganza of New Stars<\/a><\/strong><\/p>\n

\"Star<\/a><\/p>\n

This dramatic landscape in the southern constellation of Ara (The Altar) is a treasure trove of celestial objects. Star clusters, emission nebulae and active star-forming regions are just some of the riches observed in this region lying some 4000 light-years from Earth. This beautiful new image is the most detailed view of this part of the sky so far, and was taken using the VLT Survey Telescope at ESO\u2019s Paranal Observatory in Chile.<\/p>\n

At the centre of the image is the open star cluster NGC 6193<\/a>, containing around thirty bright stars and forming the heart of the Ara OB1 association. The two brightest stars are very hot giant stars. Together, they provide the main source of illumination for the nearby emission nebula, the Rim Nebula, or NGC 6188<\/a>, which is visible to the right of the cluster.<\/p>\n

A stellar association is a large grouping of loosely bound stars that have not yet completely drifted away from their initial formation site. OB associations consist largely of very young blue\u2013white stars, which are about 100 000 times brighter than the Sun and between 10 and 50 times more massive.<\/p>\n

http:\/\/cdn.eso.org\/videos\/medium_podcast\/eso1510a.m4v<\/a><\/video><\/div>\n

The Rim Nebula is the prominent wall of dark and bright clouds marking the boundary between an active star-forming region within the molecular cloud, known as RCW 108, and the rest of the association [1]<\/a>. The area around RCW 108 is made up of mostly hydrogen \u2014 the primary ingredient in star formation. Such areas are also known as H II regions<\/a>.<\/p>\n

The ultraviolet radiation and intense stellar wind from the stars of NGC 6193 seem to be driving the next generation of star formation in the surrounding clouds of gas and dust. As cloud fragments collapse they heat up and eventually form new stars.<\/p>\n

As the cloud creates new stars, it is simultaneously being eroded by the winds and radiation emitted by previous stars, and by violent supernova explosions. In this way, such star-forming H II regions tend to have a lifespan of just a few million years. Star formation is a very inefficient process, with only around 10% of the available material contributing to the process \u2014 the rest is blown off into space.<\/p>\n

The Rim Nebula also shows signs of being in the early phase of \u201cpillar formation\u201d, meaning that in the future it could end up looking similar to other well-known star-forming regions, such as the Eagle Nebula<\/a> (Messier 16, containing the famous\u00a0Pillars of Creation<\/a>) and the Cone Nebula<\/a> (part of NGC 2264).<\/p>\n

This single spectacular image was actually created from more than 500 individual pictures taken through four different colour filters with the VLT Survey Telescope. The total exposure time was more than 56 hours. It is the most detailed view of this region yet achieved.<\/p>\n

http:\/\/cdn.eso.org\/videos\/medium_podcast\/eso1510b.m4v<\/a><\/video><\/div>\n","protected":false},"excerpt":{"rendered":"

The latest cool astronomical\u00a0report from the European Southern Observatory (ESO): A Grand Extravaganza of New Stars This dramatic landscape in the southern constellation of Ara (The Altar) is a treasure trove of celestial objects. Star clusters, emission nebulae and active star-forming regions are just some of the riches observed in this region lying some 4000 … Continue reading ESO: A grand extravaganza of new stars in The Altar<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[12],"tags":[],"class_list":["post-10103","post","type-post","status-publish","format-standard","hentry","category-astronomy"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p34aWK-2CX","jetpack-related-posts":[{"id":11218,"url":"https:\/\/hobbyspace.com\/Blog\/?p=11218","url_meta":{"origin":10103,"position":0},"title":"ESO: Sibling Stars in the cluster IC 4651","author":"TopSpacer","date":"August 19, 2015","format":false,"excerpt":"The latest report from\u00a0ESO\u00a0(European Southern Observatory): Sibling Stars Open star clusters like the one seen here are not just perfect subjects for pretty pictures. Most stars form within clusters and these clusters can be used by astronomers as laboratories to study how stars evolve and die. The cluster captured here\u2026","rel":"","context":"In "Astronomy"","block_context":{"text":"Astronomy","link":"https:\/\/hobbyspace.com\/Blog\/?cat=12"},"img":{"alt_text":"This rich view of a tapestry of colourful stars was captured by the Wide Field Imager (WFI) camera, on the MPG\/ESO 2.2-metre telescope at ESO\u2019s La Silla Observatory in Chile. It shows a open cluster of stars known as IC 4651, a stellar grouping that lies at in the constellation of Ara (The Altar).","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2015\/08\/eso1534a1.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":12177,"url":"https:\/\/hobbyspace.com\/Blog\/?p=12177","url_meta":{"origin":10103,"position":1},"title":"ESO: A nebula glows with the reflected light of a new star","author":"TopSpacer","date":"February 10, 2016","format":false,"excerpt":"The latest public report from the\u00a0ESO\u00a0(European Southern Observatory) : A Star\u2019s Moment in the Spotlight A newly formed star lights up the surrounding cosmic clouds in this new image from ESO\u2019s La Silla Observatory in Chile. Dust particles in the vast clouds that surround the star HD 97300 diffuse its\u2026","rel":"","context":"In "Astronomy"","block_context":{"text":"Astronomy","link":"https:\/\/hobbyspace.com\/Blog\/?cat=12"},"img":{"alt_text":"A newly formed star lights up the surrounding cosmic clouds in this image from ESO\u2019s La Silla Observatory in Chile. Dust particles in the vast clouds that surround the star HD 97300 diffuse its light, like a car headlight in enveloping fog, and create the reflection nebula IC 2631. Although HD 97300 is in the spotlight for now, the very dust that makes it so hard to miss heralds the birth of additional, potentially scene-stealing, future stars.","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/02\/eso1605a1-1024x946.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":11087,"url":"https:\/\/hobbyspace.com\/Blog\/?p=11087","url_meta":{"origin":10103,"position":2},"title":"ESO: First detection of Lithium ejected from a nova","author":"TopSpacer","date":"July 29, 2015","format":false,"excerpt":"A new report from ESO (European Southern Observatory): First Detection of Lithium from an Exploding Star The chemical element lithium has been found for the first time in material ejected by a nova. Observations of Nova Centauri 2013 made using telescopes at ESO\u2019s La Silla Observatory, and near Santiago in\u2026","rel":"","context":"In "Astronomy"","block_context":{"text":"Astronomy","link":"https:\/\/hobbyspace.com\/Blog\/?cat=12"},"img":{"alt_text":"eso1531a[1]","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2015\/07\/eso1531a1-885x1024.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":9313,"url":"https:\/\/hobbyspace.com\/Blog\/?p=9313","url_meta":{"origin":10103,"position":3},"title":"ESO: Beautiful view of a bright star cluster","author":"TopSpacer","date":"November 26, 2014","format":false,"excerpt":"This week's finding from the European Space Observatory (ESO): A Colourful Gathering of Middle-aged Stars The MPG\/ESO 2.2-metre telescope at ESO\u2019s La Silla Observatory in Chile has captured a richly colourful view of the bright star cluster NGC 3532. Some of the stars still shine with a hot bluish colour,\u2026","rel":"","context":"In "Astronomy"","block_context":{"text":"Astronomy","link":"https:\/\/hobbyspace.com\/Blog\/?cat=12"},"img":{"alt_text":"The colourful star cluster NGC 3532","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2014\/11\/eso1439a-1024x989.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":21935,"url":"https:\/\/hobbyspace.com\/Blog\/?p=21935","url_meta":{"origin":10103,"position":4},"title":"ESO: Small hot stars display giant magnetic spots and super-flares","author":"TopSpacer","date":"June 1, 2020","format":false,"excerpt":"The latest report from ESO (European Southern Observatory): Hot stars are plagued by giant magnetic spots, ESO data shows Astronomers using European Southern Observatory (ESO) telescopes have discovered giant spots on the surface of extremely hot stars hidden in stellar clusters. Not only are these stars plagued by magnetic spots,\u2026","rel":"","context":"In "Astronomy"","block_context":{"text":"Astronomy","link":"https:\/\/hobbyspace.com\/Blog\/?cat=12"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2020\/05\/eso2009a1-500x300.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":12276,"url":"https:\/\/hobbyspace.com\/Blog\/?p=12276","url_meta":{"origin":10103,"position":5},"title":"ESO: “The Realm of Buried Giants” – crimson nebula lit by rare, massive stars","author":"TopSpacer","date":"March 2, 2016","format":false,"excerpt":"Here is a new report from the\u00a0European Southern Observatory (ESO): The Realm of Buried Giants In this huge new image clouds of crimson gas are illuminated by rare, massive stars that have only recently ignited and are still buried deep in thick dust clouds. 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For example the filaments to the right of the image are the remnants of an ancient supernova (SNR G332.4-00.4, also known as RCW 103), and the glowing red filaments at the lower left surround an unusual and very hot star (RCW 104, surrounding the Wolf\u2013Rayet star WR 75). Patches of dark obscuring dust are also visible across the entire cosmic landscape.","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/03\/eso1607a1-1024x618.jpg?resize=350%2C200","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/10103","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10103"}],"version-history":[{"count":1,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/10103\/revisions"}],"predecessor-version":[{"id":10105,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/10103\/revisions\/10105"}],"wp:attachment":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10103"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10103"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10103"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}