{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Southern close visual binaries: MK spectral classification and evolutionary status","author_name":"Christopher Corbally","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0007AY9X2.html\">Southern close visual binaries: MK spectral classification and evolutionary status</a>","width":400,"height":300}