標(biāo)題: Titlebook: Observing Meteors, Comets, Supernovae and other Transient Phenomena; Neil Bone Book 1999 Springer-Verlag London 1999 Planet.Sunspot.observ [打印本頁] 作者: Fuctionary 時(shí)間: 2025-3-21 19:24
書目名稱Observing Meteors, Comets, Supernovae and other Transient Phenomena影響因子(影響力)
書目名稱Observing Meteors, Comets, Supernovae and other Transient Phenomena影響因子(影響力)學(xué)科排名
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書目名稱Observing Meteors, Comets, Supernovae and other Transient Phenomena網(wǎng)絡(luò)公開度學(xué)科排名
書目名稱Observing Meteors, Comets, Supernovae and other Transient Phenomena被引頻次
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作者: 敘述 時(shí)間: 2025-3-21 22:48
Neil Bone BScn Lebensweisen in abgewandelten Allelfrequenzen manifestierten. Viele Generationen mu?ten leben und vergehen, bis die Werkzeuge die genetischen Grundlagen ihrer Produzenten merklich ver?nderten und selbst dann war ihr Einflu? nur indirekt. Neuentwikkelte Techniken stellen den Menschen auch heute noc作者: gratify 時(shí)間: 2025-3-22 02:35
Neil Bone BScn Lebensweisen in abgewandelten Allelfrequenzen manifestierten. Viele Generationen mu?ten leben und vergehen, bis die Werkzeuge die genetischen Grundlagen ihrer Produzenten merklich ver?nderten und selbst dann war ihr Einflu? nur indirekt. Neuentwikkelte Techniken stellen den Menschen auch heute noc作者: stressors 時(shí)間: 2025-3-22 05:22 作者: 火花 時(shí)間: 2025-3-22 12:37 作者: Pseudoephedrine 時(shí)間: 2025-3-22 13:03 作者: GRATE 時(shí)間: 2025-3-22 20:15 作者: 擺動(dòng) 時(shí)間: 2025-3-22 23:42
Meteors,n of any persistent ionisation train along the meteor’s path. It is also useful to note any pronounced colour, or flaring and fragmentation in flight. Table 2.1 gives an example from the author’s observing log, recording activity during the Leonids of 1995 — a time when the shower was becoming more 作者: vasospasm 時(shí)間: 2025-3-23 03:39 作者: 夾死提手勢(shì) 時(shí)間: 2025-3-23 06:04 作者: 積極詞匯 時(shí)間: 2025-3-23 10:10 作者: IRS 時(shí)間: 2025-3-23 16:47 作者: Commentary 時(shí)間: 2025-3-23 18:11 作者: installment 時(shí)間: 2025-3-23 22:39
Neil Bone BScerl?uft oder nicht. Natürlich wollen Eltern gerne wissen, ob ihr Kind normal ist oder nicht, um so mehr, wenn sie bereits ein geistig oder k?rperlich behindertes Kind haben oder wenn sie befürchten müssen, da? z.B. eine Virusinfektion w?hrend der Schwangerschaft oder eine Plazentainsuffizienz sich s作者: 紅腫 時(shí)間: 2025-3-24 04:16 作者: 紅潤(rùn) 時(shí)間: 2025-3-24 10:26 作者: 吊胃口 時(shí)間: 2025-3-24 11:27 作者: 笨重 時(shí)間: 2025-3-24 17:30
Introduction,on. While it is no longer the case - as it was in the era of the wealthy gentleman scientist in the 19th century - that amateur equipment may actually be superior to that in professional observatories, developments in the manufacture of instruments, in particular the CCD camera, mean that, for a pri作者: Mercurial 時(shí)間: 2025-3-24 19:57
Meteors,rried out effectively. Naked-eye watches demand no more of the observer than willing and patience. Provided that the watch is of reasonable duration (preferably an hour, or multiples of an hour), and the observer takes care to record the sky transparency (as limiting magnitude) throughout it, the da作者: MURAL 時(shí)間: 2025-3-25 01:43 作者: single 時(shí)間: 2025-3-25 04:26 作者: 縮影 時(shí)間: 2025-3-25 08:28
The Moon, binoculars or a small telescope will allow lunar features to be resolved in reasonable detail, and many good maps are available for guidance (e.g. Rükl, 1991; Hatfield, 1968). The Moon presents an essentially unchanging face, and its captured rotation means that only 59% of the lunar terrain is vis作者: 保存 時(shí)間: 2025-3-25 14:31 作者: 錯(cuò)誤 時(shí)間: 2025-3-25 17:33
Small Bodies of the Solar System,the astronomical observer. Meteor activity, produced by small particles – meteoroids – usually of cometary origin, has already been discussed (Chapter 2). Further small bodies of interest are the asteroids (or minor planets), planetary satellites and comets. Since asteroids and satellites are in gen作者: 干涉 時(shí)間: 2025-3-25 20:04
Comets, comets may come within range of amateur telescopes, maybe a couple of which might even be sufficiently bright to be seen with the aid of 10 × 50 binoculars. Most are rather faint, and require skill and patience if they are to be observed. Certainly, few come to resemble the popular image, with a lo作者: Prosaic 時(shí)間: 2025-3-26 00:48
Variable Stars,ility. In most instances the variations are either too slow (of the order of months, years or decades) or too subtle (fractions of a magnitude) to be included in any discussion of readily observable transient astronomical phenomena. None the less, there is much value in systematic, long-term series 作者: Solace 時(shí)間: 2025-3-26 07:45 作者: cacophony 時(shí)間: 2025-3-26 12:13 作者: Accommodation 時(shí)間: 2025-3-26 16:00 作者: frugal 時(shí)間: 2025-3-26 20:37 作者: 驕傲 時(shí)間: 2025-3-27 00:12 作者: SHOCK 時(shí)間: 2025-3-27 04:16
1431-9756 Overview: Deals with unpredictable events (like, comets and supernovae)..Deals also with partly-predictable events (like meteors)..Provides the amateur astronomer with a perfect introduction that will give him 978-1-85233-017-0978-1-4471-0579-4Series ISSN 1431-9756 Series E-ISSN 2197-6562 作者: 煉油廠 時(shí)間: 2025-3-27 06:27 作者: 植物茂盛 時(shí)間: 2025-3-27 10:18 作者: Fabric 時(shí)間: 2025-3-27 16:59
The Moon,nd regions-with only a few comparatively recent crater additions (such as Tycho and Copernicus, estimated to be 100 million and 810 million years old respectively), dates back more or less to the end of the late stage of bombardment by small planetesimals around 3800 million years ago.作者: Intrepid 時(shí)間: 2025-3-27 17:57
Comets, no obvious tail. Only rarely are we treated to spectacular objects like C/1996 B2 Hyakutake, which appeared in the spring of 1996, or C/1995 O1 Hale-Bopp, which reached naked-eye visibility a year later. The arrival of such bright objects is unpredictable, and they may be easily visible for only a few weeks.作者: subordinate 時(shí)間: 2025-3-28 00:40
Aurorae and other Atmospheric Phenomena, or unusual formations such as lenticular clouds (Greenler, 1989; Minnaert, 1954). Many amateur observers marvelled at the succession of purple twilights in 1991 and 1992 which resulted from the injection of volcanic material into the stratosphere by the eruption of Mount Pinatubo.作者: HOWL 時(shí)間: 2025-3-28 05:53 作者: cavity 時(shí)間: 2025-3-28 09:31
The Planets,ely large telescope at favourable apparitions. Jupiter’s cloudscape presents a constantly changing appearance which can be followed in quite modest instruments. When tilted at their most wide-open aspect, the rings of Saturn are one of the most sublime sights in a telescope.作者: CLAY 時(shí)間: 2025-3-28 13:26 作者: farewell 時(shí)間: 2025-3-28 18:19
Variable Stars,included in any discussion of readily observable transient astronomical phenomena. None the less, there is much value in systematic, long-term series of observations of slowly varying red semiregular variables or long-period (Mira) stars by amateurs.作者: insular 時(shí)間: 2025-3-28 19:41
Information Sources,npredictable, as the preceding chapters have shown, there are others such as eclipses, occultations or meteor showers for which at least approximate predictions can be given, allowing some degree of advance preparation.作者: dagger 時(shí)間: 2025-3-29 02:43
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