![\"R](\"https:\/\/www.popastro.com\/variablestar\/wp-content\/uploads\/sites\/3\/2017\/11\/RCrB_LC_2016may-2017july.png\")
<\/p>\nThere was a time when observers would be encouraged to monitor R Coronae Borealis (R CrB) on a regular basis to check for any sudden fades.\u00a0 The “standard pattern” was that R CrB would spend most of its time near magnitude 6.0 but at times, unpredictable in advance, it would start to fade.\u00a0<\/p>\n
Over the weeks which followed it would sometimes fade by just a magnitude or two, but on other occasions would produce a more dramatic fade, possible by as much as nine magnitudes.\u00a0 On each occasion, however, it would return back to maximum. In most cases this would happen after an interval of a few months, but in exceptional cases there might be a longer delay of a year or two.<\/p>\n
The fade that started in mid 2007 was different, however. The fade of nine magnitudes was not that unusual. What was unusual was that R CrB stayed faint year after year.\u00a0 There were occasional short lived brightenings of a few magnitudes, but after each one it would fade back down again. Not until the autumn of 2014 did a brightening return R CrB to binocular visibility.\u00a0 However, this one again fell short, peaking near magnitude 7.0 in early March 2015.\u00a0 By late June it was back at minimum once more.<\/p>\n
The most recent recovery began in mid 2016.\u00a0 By November R CrB was visible in binoculars.\u00a0 In early 2017, however, it seemed to be “running out of steam” – near magnitude 7.5 – raising fears that it would soon plummet in brightness again.<\/p>\n
These fears were not be be realised.\u00a0 Towards the end of May, there were signs that R CrB was starting to resume its brightening.\u00a0 The subsequent rise in brightness has been slow, but by July it was around half a magnitude brighter.\u00a0 R CrB is still nearly a magnitude below its “normal” maximum level, but maybe, just maybe, this time it will finally get there.<\/p>\n
<\/p>\n
More information about R Coronae Borealis, including a finder chart, can be found in\u00a0\u00a0this guide<\/p>\n
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There was a time when observers would be encouraged to monitor R Coronae Borealis (R CrB) on a regular basis to check for any sudden fades.\u00a0 The “standard pattern” was that R CrB would spend most of its time nearRead more<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[2],"tags":[],"class_list":["post-2392","post","type-post","status-publish","format-standard","hentry","category-variable-stars"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t