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Content
This book contains everything you need to know about variable stars -- stars whose brightness varies noticeably over time. The study of variable stars has been a particularly popular area of research for amateurs for many years; the material contained herein serves as both an introduction to amateur astronomers and a useful reference source for seasoned variable star observers. With its thorough, non-mathematical descriptions of variable stars and tips for how to see them, this book enables novices and experts alike to set off into the field and observe a wide range of delightful sights. It strikes a balance between easily visible objects that can be seen in any telescope or binoculars, and variable stars that are a direct challenge to those with large aperture equipment or access to photometric tools and methods.After helping the observer differentiate between variable star types, the author goes on to explain the skills needed to operate a telescope and other equipment, as well as how to couple filters to a CCD camera or digital SLR camera in order to photometrically record these celestial objects. Further, the book includes an observational guide to 50 objects for study, with finder charts and data about light curves for ease of identification, along with the stars’ celestial coordinates, magnitudes, and other pertinent information.
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Book condition
An important factor of a second-hand book is the condition of the book. The buyer may not be surprised. Always mention damages or defects. We use a system with 3 stars:
The book is acceptable: you have used it to study and made notes and markings – but everything is still readable. The cover and pages are in good condition.
The book still looks good: there are a few notes in it and you marked it. There are hardly any signs of use on the cover and pages
The book is (almost) new: you have not written or marked in it. There are no signs of use on the cover and pages
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