Visual Astronomy

Atlas over de vigtigste galakser og nebuloser, som kan ses i teleskop af amatørastronomer.

Provide the reader with everything he needs to know about what to observe, and using some of today’s state-of-the-art technique and commercial equipment, how to get superb views of faint and distant astronomical objects. Only guide to live observation of deep space, utilizing modern image enhancement techniques (image intensifiers and CCD video monitors) Detailed information supplied on the image intensifiers and CCD video monitors Explains how to select and prepare sites for live viewing.

The only practical guide to observing truly spectacular astronomical objects from less than perfect locations. The only book to deal in depth with the application of image intensifiers to real-time astronomy. Gives advice on viewing objects, and on making realistic images by drawing or video. Includes extensive catalogs of spectacular objects that can be seen from suburban sites in both hemispheres.

Visual Astronomy introduces the basics of observational astronomy, a fundamentally limitless opportunity to learn about the universe with your unaided eyes or with tools such as binoculars, telescopes, or cameras. The book explains the essentials of time a

With the advent of CCDs and webcams, the focus of amateur astronomy has to some extent shifted from science to art. Visual work in astronomy has a rich history. Today, imaging is now more prominent. However there is still much for the visual amateur astronomer to do, and visual work is still a valid component of amateur astronomy. Paul Abel has been addressing this issue by promoting visual astronomy wherever possible – at talks to astronomical societies, in articles for popular science magazines, and on BBC TV’s The Sky at Night. Visual Lunar and Planetary Astronomy is a comprehensive modern treatment of visual lunar and planetary astronomy, showing that even in the age of space telescopes and interplanetary probes it is still possible to contribute scientifically with no more than a moderately-priced commercially made astronomical telescope. It is believed that imaging and photography is somehow more objective and more accurate than the eye, and this has led to a peculiar “crisis of faith” in the human visual system and its amazing processing power. But by analyzing observations from the past, we can see how accurate visual astronomy really is! Measuring the rotational period of Mars and making accurate lunar charts for American astronauts were all done by eye. The book includes sections on how the human visual system works, how to view an object through an eyepiece, and how to record observations and keep a scientific notebook. The book also looks at how to make an astronomical, rather than an artistic, drawing. Finally, everything here will also be of interest to those imagers who wish to make their images more scientifically applicable by combining the methods and practices of visual astronomy with imaging.

Over the last 15 years or so there has been a huge increase in the popularity of astrophotography with the advent of digital SLR cameras and CCD imagers. These have enabled astronomers to take many images and, indeed, check images as they scan the skies. Processing techniques using computer software have also made ‘developing’ these images more accessible to those of us who are ‘chemically challenged!’ And let’s face it – some of the pictures you see these days in magazines, books, and on popular web forums are, frankly, amazing! So, why bother looking through the eyepiece you ask? Well, for one thing, setting up the equipment is quicker. You just take your ‘scope out of the garage or, if you’re lucky enough to own one, open the roof of your observatory, align the ‘scope and off you go. If you have an equatorial mount, you’ll still need to roughly polar align, but this really takes only a few moments. The ‘imager’ would most likely need to spend more time setting up. This would include very accurate polar alignment (for equatorial mounts), then finding a guide star using his or her finder, checking the software is functioning properly, and c- tinuous monitoring to make sure the alignment is absolutely precise throu- out the imaging run. That said, an imager with a snug ‘obsy’ at the end of the garden will have a quicker time setting up, but then again so will the ‘visual’ observer.

An introductory illustrated and comprehensive guide to observing and understanding the night sky. This book provides a survey of science's growing understanding of space and includes details of the latest space probes. The most recent photographs from the world's finest observatories and space-based cameras capture the wonder and beauty of the universe. Astronomy covers a wide variety of heavenly phenomenon: Distant stars Planets of the Solar System Comets and shooting stars Eclipses Black holes. Vivid cross-sections of the planets with a concise description and a chart of their relative distance from the sun provide at-a-glance information. A series of monthly sky charts point out constellations, star clusters, galaxies, nebula and more. The sky maps use easy-to-read symbols to identify open and globular star clusters, galaxies and planetary nebula. The constellations are labeled and diagramed. Spectacular images of space phenomenon are further explained with colorful digital graphics. Nebula, clusters, galaxies, etc. are profiled with color images and short descriptions. A pictograph tells whether binoculars or a telescope is required. Astronomy is a fascinating and easy-to-use illustrated reference for amateur astronomers of all levels.