{"id":2952,"date":"2019-08-05T14:59:15","date_gmt":"2019-08-05T13:59:15","guid":{"rendered":"http:\/\/www.popastro.com\/main_spa1\/variablestar\/?p=2952"},"modified":"2019-08-05T14:59:15","modified_gmt":"2019-08-05T13:59:15","slug":"three-bright-semi-regular-variables-for-summer","status":"publish","type":"post","link":"https:\/\/www.popastro.com\/variablestar\/2019\/08\/05\/three-bright-semi-regular-variables-for-summer\/","title":{"rendered":"Three Bright Semi-Regular Variables for Summer."},"content":{"rendered":"

If you are looking to add some new variables to your observing list, then here are some stars you may want to consider.<\/p>\n

Delphinus contains two easy to find variables: EU Del and U Del. Both EU Del and U Del are pulsating red giants and both are classified as semi-regulars (SRB). EU Del has an amplitude of 5.4 – 6.7 and a period of about 59 days. U Del has an amplitude of 6.1 – 7.6 and a period of about 120 days.<\/p>\n

In the nearby constellation of Serpens, the bright variable Tau 4 Ser can be found not far from R Serpentis. Tau 4 Ser is another semi-regular variable (SRB) with an amplitude of 5.9 – 7.1, and a period of 87 days.<\/p>\n

Below are finder charts for these stars, which have been adapted from the BAA Charts.<\/p>\n

 <\/p>\n

\"\" \"\"<\/p>\n

 <\/p>\n

 <\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

If you are looking to add some new variables to your observing list, then here are some stars you may want to consider. Delphinus contains two easy to find variables: EU Del and U Del. Both EU Del and URead more<\/span><\/a><\/p>\n","protected":false},"author":22,"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-2952","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