{"id":1,"date":"2024-07-27T07:50:59","date_gmt":"2024-07-27T07:50:59","guid":{"rendered":"http:\/\/spacechallenge.asia\/?p=1"},"modified":"2024-08-02T07:20:49","modified_gmt":"2024-08-02T07:20:49","slug":"night-sky-notes-seeing-double","status":"publish","type":"post","link":"https:\/\/spacechallenge.asia\/th\/night-sky-notes-seeing-double\/","title":{"rendered":"August\u2019s Night Sky Notes: Seeing Double"},"content":{"rendered":"
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During the summer months, we tend to miss the views of Saturn, Jupiter and other heavenly bodies. But it can be a great time to look for other items, like globular star clusters such as Messier 13, open star clusters such as the Coma Star Cluster (Melotte 111), but also\u00a0double stars<\/a>!<\/span><\/p>\n<\/div>\n

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What Are Double Stars?<\/span><\/h2>\n<\/div>\n<\/div>\n<\/div>\n
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If you have seen any movies or read any books that refer to having two suns in the sky, that would be a\u00a0double star system<\/em>. These star systems typically come in two types \u2013 binary and optical doubles. Binary stars are two stars that are gravitationally bound and orbit each other, and optical double stars only\u00a0appear<\/em>\u00a0to be close together when viewed from Earth, but in reality, are extremely far apart from another, and are not affected by each other\u2019s gravity. With a small telescope, in moderately light polluted skies, summer offers great views of these stellar groupings from the Northern Hemisphere:<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n

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