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The Night Sky Observer's Guide (Inglés) Tapa dura – oct 1998

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Opiniones de clientes más útiles en (beta) 18 opiniones
28 de 29 personas piensan que la opinión es útil
Both volumes - information among the finest we've ever seen. 10 de agosto de 2001
Por Bill Wiegert - Publicado en
Formato: Tapa dura
If it wasn't for the fact that this work is such an exhaustive expression of observational material, and partially devoted to users of larger telescopes, it would most certainly be placed on the Belmont Society's "Required Reading List". As it is, these two wonderful volumes of information are both extraordinarily useful and educationally priceless for intermediate beginners and the advanced amateur. It is mostly "tilted" at users of larger scopes, but those of us who have an interest in small and medium-sized instruments will greatly appreciate its enormous cache of useful information - i.e.: just double stars alone, to cite an example.
By itself, the data is worth the price of admission. But the foundational text is a bottomless well from which to draw buckets of valuable knowledge about all the known types of deep space objects. This information is compiled in an ideal arrangement, and is laid out in logical and sensible format. Explanations and informative text are among the finest we've ever seen. The sheer quantity of information, along with an exemplary written style gives the impression that this work was composed by scores of eminent astrophysicists and astronomers, all contributing within the realms of their individual specialties, and then edited by a single omnipotent director. And sure enough, there is a lengthy acknowledgment to the contributors, the roster of which is very extensive, and the complexion of which is almost exclusively amateur.
The work is divided into two volumes or seasonal groups - Volume #1 is dedicated to Fall and Winter constellations, and #2 consists of Spring and Summer. Each volume is divided into segments, which present its constellations in alphabetical order. Each constellation begins with an impressively detailed list of double stars. Then there are the deep sky objects - dark nebulae, emission nebulae, globulars, galaxies, etc. Each individual object is given a description and a graphic rating (5 stars for the very best, and so on) with notes that justify its rank. Additionally, objects are listed in chart form by type as well. Sad to say, objects below a minimal southern latitude are not included.
For the most part, object descriptions are presented as seen with apertures between 8 and 12 inches (and larger). Roughly 30 percent of the observations are described as seen with smaller apertures, and some binocular objects are listed as well. As mentioned, the double star listings are superbly done. There are over 2,100 worthy examples of these. This list is among the most detailed we've ever seen.
These are a pair of really big books! There's an interesting but typical reaction displayed upon seeing one close-up for the first time. They dwarf the average encyclopedia edition (remember those?). They are even bigger than the law books you see behind the District Attorney's desk on a TV serial. And we appreciate the hard glossy cover with no separate jacket to rip or lose. They aren't cheap books either. It would seem practical for the amateur on a budget to acquire them separately.
Kepple and Sanner are amateur astronomers who've created a magnificent work, worthy of commendation reserved for meritorious professionals. The magnitude of their efforts is astonishing, even considering that all of it was pieced together from smaller works that they themselves authored quite some time ago. We are so impressed with the quality of this work, that we've given it "Honorable Mention" status on the Belmont Society's "Required Reading" list. The only reason it didn't make the main list is because many amateurs do not have access to, or are deprived of the opportunity or the means to use larger aperture telescopes.
Very highly recommended.
15 de 15 personas piensan que la opinión es útil
A top-shelf set of books in my astronomical library. 19 de mayo de 1999
Por Un cliente - Publicado en
Formato: Tapa dura
Finally a set of books that has the amateur with large apeture telescope in mind. The majority of the observations were made with 12-1/2" to 25" telescopes under varied conditions and locations. The drawings are more useful than the usual photographs as drawings with accompanying descriptions and photos accurately reflect what an observer can expect to see at the eyepiece. The multitude of star field charts are useful and the arrangement of objects by constellation is handy as well. Overall, a very good presentation and a work that will prove useful at the telescope in the field.
11 de 11 personas piensan que la opinión es útil
Simply a must buy for large-scope owners 10 de julio de 2001
Por Ritesh Laud - Publicado en
Formato: Tapa dura
This is the first volume of an incredible deep sky reference work for amateurs. First of all, the introduction written by Craig Crossen (noted astronomer and author) is the finest overview of basic layman's astronomy theory and observing conventions that I have run across.
The rest of the book consists of sketches or photographs and descriptions of hundreds of deep sky objects in all constellations visible from mid-northern latitudes during the Fall and Winter seasons. The second book covers Spring and Summer. Objects are described as to how they appear with telescopes of different apertures. The majority of objects are for large scope owners, e.g. 12"+, but the brighter objects like Messier are even described for 4" scopes.
The maps and finder charts are adequate but you'll need a good star chart to complement them and confirm that you've got your target. Each constellation chapter begins with a table of interesting double and multiple stars, an excellent and thoughtful inclusion for medium-size scope owners who may not be able to see many of the DSOs or for those in cities where DSOs are wiped out by light pollution.
I haven't seen a guide to compare to NSOG in depth of coverage. The two large volumes are enough to keep large scope owners busy for many years. There are nice guides out there with better descriptions of far fewer objects (e.g. The Universe From Your Backyard by Eicher), but for sheer quantity NSOG leaves them all in the dust.
10 de 10 personas piensan que la opinión es útil
What an Accomplishment!! 22 de diciembre de 1998
Por Un cliente - Publicado en
Formato: Tapa dura
I just received my hefty copy of this wonderful and encyclopedic work in today's mail. I can't remember the last time I was so completely satisfied and thrilled with a book purchase! If you are at all serious about amateur astronomy, this book is truly a "MUST OWN" item. When people told me it was "even better than Burnham's" classic work I thought they must be exaggerating. They weren't. It is better than Burnham's in all matters of practical significance to the amateur observer. It covers many more celestial objects and contains much detailed and useful information about each one. The layout and design of the pages are much superior to Burnham's as well, as are the ubiquitous maps, drawings and illustrations. Burnham's still has more "star lore" material, -- so you'll want to keep your old copies -- but all in all this is a much more usable and complete observer's guide. Truly this is a solid five star product! Congratulations to the authors on their incredible accomplishment!
13 de 14 personas piensan que la opinión es útil
Great All in one source for all levels of observers 11 de enero de 1999
Por Un cliente - Publicado en
Formato: Tapa dura
Got my books about a month ago. Have had two chances to use them at night. The information and presentation is excellent. Each chapter has a highlight box for the best object in the constellation. It also covers objects from very bright to dimmer ones for the large scope owners. Tables in the front list interestring stars and doubles, enough to keep a lot of observers happy for a long time. The data is accurate and the descriptions are quick concise and organized for different scopes. I wanted to give it 4.5 stars as the only two things I don't like and these are MINOR!
1 the paper is too bright a white. A lot of glare when using it at night with a red flashlight
2 the organization by seasons is less obvious too me than straight alphabetical order. You need both books if you stay out several hours so no benefit by doing it this way.