协迫
发表于 2025-3-23 12:11:51
https://doi.org/10.1007/3-540-27528-2oor collimation. She returned them, where the sales assistant took them and, without even checking them, placed them in a box and replaced them with a new pair out of another box. My colleague was satisfied with the replacement pair and pleased with the “service” she received from the gas station.
激怒
发表于 2025-3-23 17:00:14
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松鸡
发表于 2025-3-23 20:22:11
Modeling Jet Launching from Accretion Diskss are visible—or at least detectable—in smaller instruments, but often no detail is visible. For example, under good conditions an experienced observer can see the Ring Nebula, M57, in 10×50 binoculars, but it is stellar in appearance.
Debate
发表于 2025-3-23 22:18:35
Book 20071st editionruments themselves, and has sections on evaluating and buying binoculars and binocular telescopes, their care, mounting, and accessories. In addition there is a selection of fine objects to be seen with 50mm and 100mm binoculars. .
Panacea
发表于 2025-3-24 05:08:20
1431-9756 escopes, their care, mounting, and accessories. In addition there is a selection of fine objects to be seen with 50mm and 100mm binoculars. .978-1-84628-788-6Series ISSN 1431-9756 Series E-ISSN 2197-6562
绅士
发表于 2025-3-24 07:30:19
https://doi.org/10.1007/3-540-27528-2for having a preliminary scan around the sky in order to evaluate it at the beginning of an observing session, and is also useful in conjunction with the telescope’s finder as an aid to hunting the objects to be observed. Additionally, there are large objects with low surface brightness, such as the
骚动
发表于 2025-3-24 12:44:38
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保全
发表于 2025-3-24 17:36:56
https://doi.org/10.1007/978-1-84628-788-6Binoculars; Equipment; Observational; astronomy; instruments; observing techniques
神秘
发表于 2025-3-24 20:09:53
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牛的细微差别
发表于 2025-3-24 23:11:54
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