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paperback. Condition: New. Language:Chinese.Paperback. Pub Date: 2021-08-01 Publisher: Hunan Science and Technology Press The content of this book includes astronomical observation skills. telescopes and observatories. Internet resources. and celestial targets for research; novices who are just getting started can learn a lot from it. Learn how to start exploring the starry sky with the skills and tricks; those who have experience in observing can get useful advice from an early age and make their observations more pro.