Thursday, January 20, 2011

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Book Review: sun, moon, planets observe and photograph

Marion Weigand, Sabrina Geyer: sun, moon, planets and watch and photograph, eyepieces Filter, telescopic tips. Images with WebCam & Co. observation highlights Kosmos Astro practice 2010th 144 S. m. zahlr. color illustrations and photographs. 215 mm. 426g, binding. Paperback, Publisher: Cosmos (Cosmos Franckh), ISBN: 9783440124390

The observation and photography is one of the planets in our solar system, astronomers at the most popular fields of activity. Thanks to technical development in recent years, especially the constant improvement of the webcams, but also contracts for the processing of the images necessary programs, amateurs are now even with average tools of the 8 to 12 inches-class shots possible 50 years ago not even the largest telescopes in the world get. Here, the handling of the programs is often quite simple.

But a good record is in addition to webcam and computer programs, of course, a suitable telescope, the right mount, necessary filters to bring out details and more.

The first section covers the two authors of the foundations of any observation and photography. The optical accessories such as eyepieces, Barlow lens, Binoansätze, filter types and the different environmental influences on the observation that under the generally accepted concept are summarized Seeing prepare, on the next chapter before and for a successful observation of inestimable value.

In photography and image processing "are essentially the work through to observed fundamentals for dealing with the technology and at the end for good results. It goes without saying that present all aspects with the necessary depth can be covered. But here are the representations made very clear and rich and perfect for first steps, the first well of the newly acquired knowledge and first practical experiences. Yet, it is absolutely necessary to deal with the questions about the differences among the various types of cameras and set models, the possibilities for improving the systems used and the endless field of digital image processing on the computer apart.

Before then push comes to, nor the movements of the sun, moon and planets are drawn up in the sky, which is related firstly to the discovery of objects, but also with the correct tracking rate of the telescope. For best lunar images, it is of course imperative that the tracking of the telescope, the faster the planet against the apparent movement of the moon adapt. And not only the movement is basic, but also the apparent size of the observation object in the telescope, its positioning in the host field of the webcam (which may be in just one planet and inaccurate tracking of a lengthy game of patience) and the (post-) magnification. These are all points that are addressed here, unfortunately only superficially. Instead, here it is nevertheless important to the orientation of the planet in the eyepiece (but this one could write a whole chapter) to the limb darkening of Jupiter and the Sun, Mercury and Venus in designing phase.

takes the greatest place in the book naturally a single representation of the planet. Each individual sub-chapter is systematically structured and describes Understanding planets (overview, visibility, visual and photographic observation) and special features, such as the first new for the (wealthy) amateurs developed near-UV observation of the Venus, Mars Photography using various filters, the internationally-defined details the highly structured atmosphere of Jupiter, the observation of Saturn's methane-band filters (which in the amateur sector is also relatively new) and the difficult but not impossible, photography of the planets Uranus and Neptune.

The moon photography (including lunar eclipses) is like that of the Sun (with solar eclipses) are each a separate chapter dedicated. This is also useful to the observation and Fotografiermethoden distinguish it significantly from those of the planets. While the moon allows images with high detail, you can borrow from the sunspots in great detail and follow their development and migration of the solar surface within days to detect flares, etc., which both observations in white light, and in H-alpha and As for the calcium line.

If we would have liked in some places a somewhat deeper introduction to the subject, this book provides nevertheless a very nice overview of one of the most fascinating areas today's amateur astronomical observation. It is primarily aimed at the beginner in this complex area. Professional and amateur astronomers who are concerned for some time to be by the book but which have little benefit, but just made new people interested in a familiar area, inviting you to a long-term employment in our short-lived.

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