Arthropathy 发表于 2025-3-23 12:21:38

Guided Astrophotography Through a Telescope,The last chapter showed that piggyback photos can cover relatively wide areas of the sky, but that they don’t capture much detail on deep sky objects having a small angular size. By taking pictures through your telescope instead of a camera lens, you can get larger and better images of deep sky objects.

Anecdote 发表于 2025-3-23 16:47:16

http://reply.papertrans.cn/43/4201/420008/420008_12.png

贸易 发表于 2025-3-23 18:03:34

http://reply.papertrans.cn/43/4201/420008/420008_13.png

Nomadic 发表于 2025-3-24 00:07:04

Astrophotography Without a Sidereal Drive,Previous chapters have covered basic astrophotography, how to calculate exposure values, what you can realistically expect from various optics, and suggestions for travel and astrophotography. This chapter covers a few techniques for shooting astrophotos with modest equipment. Later chapters will cover more advanced topics.

rectocele 发表于 2025-3-24 05:19:49

http://reply.papertrans.cn/43/4201/420008/420008_15.png

正式演说 发表于 2025-3-24 09:21:20

http://reply.papertrans.cn/43/4201/420008/420008_16.png

指耕作 发表于 2025-3-24 10:54:38

http://reply.papertrans.cn/43/4201/420008/420008_17.png

光亮 发表于 2025-3-24 16:36:00

http://reply.papertrans.cn/43/4201/420008/420008_18.png

Hyperalgesia 发表于 2025-3-24 19:02:52

Grundbegriffe des Projektmanagements,ta on which to base forecasts of repair and maintenance costs. Research into simple models for predicting the new-build cost of bridges has led to the development of equally simple models for predicting the costs of repair contracts exceeding £10k in value. These models, based on the principle of co

赤字 发表于 2025-3-24 23:49:49

Valentin L. Popov,Markus Heß,Emanuel Willertpredispositions. But is it possible, in general, to arrive at an idea, even if only a completely general and approximate one, of the possible relation between the power of these means of resolution and the extent of the problem or problems to be resolved? We hope that the reader will understand that
页: 1 [2] 3 4
查看完整版本: Titlebook: H-Spaces from a Homotopy Point of View; James Stasheff Book 1970 Springer-Verlag Berlin Heidelberg 1970 Finite.Homotopie.Topologischer Rau