{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Heliometer Observations For Determination Of Stellar Parallax Made At The Royal Observatory, Cape Of Good Hope","author_name":"David, Sir Gill","thumbnail_url":"https://www.ebooknetworking.net/books/140/861/big1408612119.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1408612119.html\">Heliometer Observations For Determination Of Stellar Parallax Made At The Royal Observatory, Cape Of Good Hope</a>","width":400,"height":300}