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The Night Sky Observer's Guide: Autumn & Winter (Anglais) Relié – 12 juin 1999

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Détails sur le produit

  • Relié
  • Editeur : Atlantic Books (12 juin 1999)
  • Langue : Anglais
  • ISBN-10: 0943396581
  • ISBN-13: 978-0943396583
  • Dimensions du produit: 7,6 x 21,6 x 27,9 cm
  • Moyenne des commentaires client : 5.0 étoiles sur 5  Voir tous les commentaires (1 commentaire client)
  • Classement des meilleures ventes d'Amazon: 191.032 en Livres anglais et étrangers (Voir les 100 premiers en Livres anglais et étrangers)
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Par Robert Netto le 26 février 2013
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Je crois, sans trop me tromper, qu'il s'agit là de l'ouvrage (en trois tomes) le plus complet et le mieux construit sur le ciel profond.

Un must, une référence, une mine d'informations.

Si vous êtes passionné(e) d'astronomie et que vous lisez l'anglais, vous avez trouvé votre Bible !
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Amazon.com: 19 commentaires
29 internautes sur 30 ont trouvé ce commentaire utile 
Both volumes - information among the finest we've ever seen. 10 août 2001
Par Bill Wiegert - Publié sur Amazon.com
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.
16 internautes sur 16 ont trouvé ce commentaire utile 
A top-shelf set of books in my astronomical library. 19 mai 1999
Par Un client - Publié sur Amazon.com
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.
12 internautes sur 12 ont trouvé ce commentaire utile 
Simply a must buy for large-scope owners 10 juillet 2001
Par Ritesh Laud - Publié sur Amazon.com
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.
14 internautes sur 15 ont trouvé ce commentaire utile 
Great All in one source for all levels of observers 11 janvier 1999
Par Un client - Publié sur Amazon.com
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.
9 internautes sur 9 ont trouvé ce commentaire utile 
all we have at the moment 11 juin 2014
Par Daniel Mounsey - Publié sur Amazon.com
This was a tremendous undertaking so I have to give credit there. I realize everyone else is jazzed about this source but there are several issues I have with it as a companion. They are priced very reasonably but the paper looks and feels like it came out of a photo copier and the pages are bright white, so it tends to have a cheap kind of feel to it. Crossen did a nice job in Volume 1 explaining the various types of deep sky objects and goes into some technical details about them. He also covers some of the historical lore about the various constellations. I also like how the volumes were done by season because you have most of the constellations that are visible, compressed into one volume.

There are technical details about how to observe and what telescopes to use. Volume 1 advises the observer to get the largest telescope they can afford and transport and basically gave little if any suggestion to the benefit of using smaller refractors for wide field targets, multiple stars and asterisms. This is an unfortunate and common bias often taught to beginners and it amazes me to no end that more experienced observers fail to express this fact. BTW, there are a surprising number of very interesting wide field star clusters missing from these sources.

Each constellation has a list of interesting multiple stars but are listed as ADS numbers instead of SAO. The problem with this is that most computerized telescopes use the SAO catalog to enter in multiple stars. So, basically what you have here are a list of countless doubles with no cross reference to log them into your handset as SAO's. Another issue are the size of the star charts which are nearly useless "at the eyepiece" because they're not detailed enough. For example, Sky Atlas 2000 is the same way in the sense that its star charts are good for star hopping, but not detailed enough for finding detailed targets "in the eyepiece".
Uranometria 2000 is excellent for this task.

It also would have been much easier if the star charts had been referenced by the page they were on instead of their own specific chart / table number. This is so frustrating because you have to sift through several pages to find the table number referenced by the deep sky object and to add further insult to injury, most of the maps are not even on the same page as the description of the object. NSOG also provides a list of variable stars but once again, the maps are severely lacking in detail and you would have to reference an AAVSO chart for a detailed comparison.

The biggest and worst issue are the descriptions of deep sky objects and it amazes me that observers actually like this stuff. It's such a shame that so much valuable space was wasted on nothing but a bunch of visual descriptions. It's like going backwards to T.W. Webb's Celestial Objects For Common Telescopes. The reason Burnham's Celestial Handbook was written was because a new era of astrophysical information was making its way and it was time to add current knowledge about the objects themselves! What a catastrophe that NSOG ignored new facts to share about some really interesting objects for the observer to contemplate at the eyepiece!

What we are faced with is page after page of dry, cold information. Very little if any astrophysical information is shared about the objects being observed except for the same old common Messier Objects which are a dime a dozen in any modern source and a few other deep sky objects. I'm just really disappointed that modern observers have such a shallow, cold and mechanical approach towards this beautiful and strange universe. To me, observers are like sheep. They continually express a cold and boring approach to observations. Open up any deep sky companion and we are continually bombarded with nothing but a bunch of visual descriptions.

Every observation is your own. No matter what any observer tells you about how and object looks, it will always look different to each observer. Stephen O'Meara made this very clear in his Caldwell Objects book. If you take five observers and have them look at the same object, they will all describe a different thing. This is so true and besides, seeing conditions, dark adaptation, sky darkness, aperture etc. play such a huge role in ones own personal experience, you can't always go by someone's description. I've been observing over 20 years and the last thing I need a lesson and a description on is how to observe an object. Just a brief paragraph is fine, but to make an entire reference this way is simply boring.

People always complain that Burnham's Celestial Handbook is outdated, but it covers such a vast array of really interesting stars and subjects, where NSOG is just filled with a bunch of DSO's, lacking any interesting content to contemplate what's being observed at the eyepiece. Where's the passion? Cold, modern sources are abundant enough as it is. When are amateur astronomers going to get it?
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