This book promises to help intermediate-level amateur astrophotographers make observations that actually provide useful scientific information, while at the same time delaying as long as possible the twin perils of amateur astronomers: bankruptcy and death by sleep deprivation.
We aren't talking wobbly department store refractors and point-and-shoot cameras here. If you want to collect reliable data, Hubbell recommends as a minimum an astrograph and a professional 16-bit CCD camera. Hubbell (no relation to 'Ed') advises readers to obtain new equipment only when the experiment demands it. Selecting the right equipment depends on your scientific goals, and this book helps the reader to decide rationally what equipment you need. There's lots of accurate technical information that every amateur needs to know about imaging and equipment for astrophotography, presented in an well written format, and nicely published by Springer.
Later chapters include brief discussions of photometry and spectroscopy, and sections on image calibration and data analysis. For readers coming from engineering, where nothing is done without a written documented procedure, a bunch of SOPs are included.
The focus is entirely on equipment, image analysis, and data analysis. Hubbell doesn't provide any suggestions about what kinds of experiments might be appropriate for an enthusiastic amateur with a brand new eight-incher. An introductory book like this won't turn anyone into an astrophysicist. (See here for some books that will.) But you still need equipment to get good data, and for that this book is a good step in the right direction.
dec 15, 2012
his book has been around for years. It's finally been updated
to include information on digital cameras, but still contains
a lot of stuff about film. But let's face it: film is obsolete.
CCDs (and even some high-end CMOS chips) have higher dynamic range,
greater light sensitivity, and much better efficiency in the red
than film. Almost no professional astronomer uses film anymore.
The other unique feature of this book is the dreadful quality of the photographs, which are all grayscale and mostly blurry. The exception is a few color plates in the middle of the book, which are of good quality. Aspiring astrophotographers will find the poor quality of Covington's images discouraging: if this is the best they can expect, even with an expensive 16-inch SCT, they might reason, better forget astrophotography altogether. However, it's possible that Covington may just be using a bad camera, or maybe he has vision problems--even the photographs of earthly objects, such as his darkroom and his lenses, are blurry. Covington undoubtedly has considerable knowledge of photography, but the bad photos like his blurry grayscale photograph of a sunset at the beach on page 165 undermine the reader's confidence in what he writes. One good feature of this book is that unlike The Backyard Astronomer's Guide, Covington documents the telescope and exposure conditions for some of the photos. He also provides lots of sage advice. But unless you want to risk losing interest in astrophotography, I recommend reading his more recent book titled Digital SLR Astrophotography.
his short book has lots of pretty pictures and step-by-step advice for
beginners who want to take “amazing pictures” of the
stars using a dSLR, webcam, or dedicated CCD camera. Even the most
basic steps are not overlooked: Step #1 for webcams is “aim at
the planet.” (Smack! No wonder!) The author's advice about cameras
and images is mostly accurate and helpful for beginners, but telescope-related
details like how to precisely align your mount (the most critical
step in astrophotography) are omitted. Contrary to what you might
have heard, just pointing it at Polaris is not always good enough.
Some of the advice is questionable, like using PhotoShop to adulterate your images, and making a cross of “sticky tape”, as it's called in England, and placing it in front of the telescope to create a fake diffraction pattern. The writing may not have much technical detail, but it's highly readable and covers most of the important details beginners need to know.
moved to here
ntroduction to elementary optical astronomy for amateurs. The word
“hacks” is misused in this book--these are not hacks, just
general advice for beginners. Observing skills and planning are important,
say the authors. Planning for a Messier Marathon, the Eiger of amateur
astronomers, takes extreme planning skill. There are numerous tips, some
useful, some stupid, but all educational, on tuning your telescope and
adding techno-bling to make finding things easier. As for the perennial
question of beginners--which telescope to buy--the authors are emphatic:
get a Dob, along with an extremely tall chair. And lots of towels, blankets,
mittens, and other rugged outdoor adventure gear. Has grayscale photos and
better quality printing than usual for an O'Reilly book.
utstanding introduction to amateur astronomy. Numerous color photographs
and up-to-date telescope reviews and recommendations for amateur
astronomers. For beginners, the authors recommend starting with
image-stabilizing binoculars and a star chart in order to become
familiar with the sky before buying a telescope. For telescopes,
they recommend a refractor for astrophotography and a Dobsonian
instead of the ubiquitous 8-inch SCT for viewing.
Although it's relatively light on technical information (almost no
equations, for example), it has good advice on accessories and
guidelines and procedures for collimating and aligning telescopes
and performing astrophotography. The last twenty pages are a
mini-atlas of the Milky Way, with beautiful photographs of the
stars. If you're just starting out, get this book!
his book is aimed at advanced amateur astronomers who need more technical
details about telescope optics, photometry, and visual astronomy. It
contains many graphs, diagrams, and basic optics equations. It's a fun
read, not least because of its old-fashioned, pre-computer-era approach.
This is how the great optical astronomers used to do things back in the
1930s. However, readers seeking an understanding of optics would be better
off reading a more modern rigorous text on astronomical optics. Many of the
formulas used here are not really meaningful in any technical sense.
For example, on page 54 Sidgwick says M' = D/0.3, where M' is magnification
and D is in inches. Of course, we know he doesn't really mean that magnification
is measured in inches, but it's bad math style. This is followed by a number
of other equations giving different relationships for M, some of which make
mathematical sense, some of which don't, and some of which are only empirical
approximations not meant to be used seriously.
The book is also marred by a convoluted writing style that can easily lead the reader to wrong conclusions, and which makes the simple topics discussed in this book seem more difficult than they really are. For example, Sidgwick says in several places that the eye is most sensitive to light at 5600 Angstroms. In fact, while this is true for color vision, most visual observing exclusively uses rods, which are most sensitive to light at 4980Å. And some sentences, like the one on the top of page 67, are practically un-parseable. But this book is great for reading while you're lying under the stars next to your telescope, and it contains a wealth of information for amateur astronomers.
t may be heresy, but in my opinion the most important consideration in
buying a scope is not aperture, but comfort in using it. If you have to
stand on tiptoe in the freezing cold and pouring rain
for hours at a time, as is typical with a Dob, you will eventually start
finding excuses not to use your scope. Rod Mollise, a contributor to
Sky and Telescope, gives the most useful and accurate advice I've seen
so far on selecting and using a telescope, focusing exclusively on CATs:
mainly SCTs and Maks. There's also excellent advice on using a CAT for
astrophotography. The book is well written, using normal English,
unlike his cornball website.
would be remiss in not mentioning Star Ware, which concentrates
exclusively on the hardware--telescopes and accessories--used by amateurs.
This information is desperately needed by beginners. Although this book
is well written, there are few illustrations, and in the two years since
it was published many of the items that Harrington reviews have disappeared
from the market. Some of the information, particularly about cameras, is
not quite stated correctly. Wait for the fifth edition.
dvice on how to take notes while observing the stars. Although it
contains some good advice on ensuring that your observations and
images are reliable, and even has a few equations, much of it is
high-school-level stuff like how to make a table cataloging the
number of meteors per hour. Its purpose is to encourage amateurs
to collect data that might be useful to a professional astronomer.
See also
Telescope Optics
See also
Optics books
See also
Star Charts and Astronomical Observing Handbooks
See also
Astronomy and Astrophysics Books