驼峰
发表于 2025-3-21 20:04:04
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Accommodation
发表于 2025-3-21 22:50:27
1431-9756 ion for easy identification of unknown targets. Full indexes by catalog numbers and names allow searches for specific objects.978-1-4419-9418-9978-1-4419-9419-6Series ISSN 1431-9756 Series E-ISSN 2197-6562
conquer
发表于 2025-3-22 04:14:25
1431-9756 photographs.Written as the result of a four-year observing pThis title is a comprehensive set of visual descriptions of deep-sky objects visible from the northern hemisphere. It is a record of the most extensive and systematic visual survey of the sky ever done in modern times. 3,000 deep-sky object
Medicare
发表于 2025-3-22 05:06:56
https://doi.org/10.1007/978-3-031-46015-9 had been known before. John Herschel finally published his monumental “General Catalogue of Nebulae and Clusters of Stars” in the . of 1864. An expanded version of this work, J. L. E. Dreyer’s 1888 ., remains to this day the principal deep-sky catalogue for astronomers.
单调性
发表于 2025-3-22 11:04:16
Tree-Partitions with Bounded Degree Trees were unaccountably fatiguing. I became more and more convinced that the reason for the telescope’s inadequacy was simply its monocularity; it was otherwise a fine instrument and its light grasp per se was satisfactory.
MUTE
发表于 2025-3-22 16:31:08
Book 2012e in the author‘s powerful binocular telescope. Objects in the book are organized by position for easy identification of unknown targets. Full indexes by catalog numbers and names allow searches for specific objects.
AV-node
发表于 2025-3-22 17:42:29
http://reply.papertrans.cn/11/1007/100630/100630_7.png
Ingenuity
发表于 2025-3-22 23:26:15
http://reply.papertrans.cn/11/1007/100630/100630_8.png
BRAWL
发表于 2025-3-23 03:23:32
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和平主义者
发表于 2025-3-23 07:20:19
Feng Zhou,Chen Zhang,Jiantao ZhangWhile describing the various objects (speaking into a tape recorder) as I looked at them in the eyepieces, I specifically looked for certain features and mentally ticked these off as I noted them. For example, as I observed a galaxy I would cover its .. The features in the descriptions are given below for each type of object.