有害
发表于 2025-3-28 14:55:10
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老巫婆
发表于 2025-3-28 21:29:16
Vom liberalen zum sozialen Privatrecht?, ‘scope has inspired many amateurs to try their hand at astronomical sketching and astrophotography. This chapter explores some of the extraordinary achievements of amateurs using modest equipment and more than a little enthusiasm.
prediabetes
发表于 2025-3-28 23:01:22
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Corporeal
发表于 2025-3-29 05:09:50
Getting Serious to set up and cool down fast enough to make observations worthwhile on most clear nights. Many diehard observers reckon an 8-inch or 10-inch (20- or 35-cm) Dobsonian comes pretty darn close to that ideal for reasons that we will supply in this chapter.
Legion
发表于 2025-3-29 09:08:30
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眨眼
发表于 2025-3-29 13:29:19
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Biguanides
发表于 2025-3-29 15:58:14
,Der Bereitschaftsarzt im Straßenverkehr, means more photons bathing the human retina and with it, the promise of seeing ever greater detail. Unfortunately, few make the transition to larger apertures, but when they do, few ever look back. This chapter is devoted to the monsters of the Dobsonian world and the observers lucky enough to own and use them.