Guide to Observing Deep-Sky Objects: A Complete Global girro 2014年2月1日 11 阅读 0 评论 未分类 Guide to Observing Deep-Sky Objects: A Complete Global Resource for Astronomers (The Patrick Moore Practical Astronomy Series) Hardcover: 198 pages Publisher: Springer (November 16, 2007) Language: English ISBN-10: 0387728503 代发服务PDF电子书10元立即求助