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AAVSO Online Store

New items are available via an off-site print on demand AAVSO store!

Below is partial list of the items available for purchase directly from the AAVSO. (Only items available to buy online via Paypal are included.)  The complete inventory is available for sale by contacting the AAVSO.

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Note: CHOICE courses are discounted for AAVSO members, and some courses are only offered to members. If you are a member, log in to access them. If you are not a member, consider joining.
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This course will use the AAVSO Visual Observing Manual as its primary text. We will cover variable stars, basic equipment, how to make observations and submit data, plotting VSO charts, planning an observing session and many other topics. This course is highly recommended for anyone just starting out in visual VSOing.

The course will last four weeks. There will be an additional two-week period in which to make observations, submit observations, ask questions in the forum and put what you’ve learned into practice. After the six-week period, those who have completed the quizzes, participated in discussions and submitted two positive variable star observations of sufficient quality to the AAVSO International Database will be awarded a certificate of accomplishment along with a badge on your website profile.

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This course will utilize the new DSLR photometry manual as its guide. This manual is a basic introduction and guide to using a DSLR camera to make variable star observations. The target audience is first-time beginner to intermediate level DSLR observers, although advanced observers may find the content useful as well.

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This course is intended to provide participants with a systematic coverage of VStar's current functionality, an appreciation of the ways in which it can be extended, and how it can be used for variable star data visualization and analysis.

You’ll learn how to create mean plots, phase plots, and perform simple period analysis. This is not a course on statistics but relevant statistical concepts as they apply to the use of VStar will be introduced through reading and discussion. You must successfully complete exercises and weekly quizzes as well as a final examination to pass the course.

VStar is written in the Java programming language, requiring at least version 1.6 to run on Windows, Mac OS X, Linux, and OpenSolaris.

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This course will use the second half of the newly-released AAVSO Guide to CCD Photometry and will cover topics including optimal image photometry settings and techniques, transformation, and basic error estimation. We'll also discuss how to plan an observing run to optimize the scientific return of your observations. Part 1 of this course is not a prerequisite, but is very strongly encouraged for new CCD photometrists. Image processing software is required, but images will be provided for those without their own equipment.

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The life of Dr. Dorrit Hoffleit—world-renowned astronomer, expert on variable stars, astrometry, and the history of astronomy—is a story of hardships endured, difficulties surmounted, lessons learned, goals met, and successes attained. She has spent a lifetime at work with some of the greatest astronomers of the 20th century, and has inspired new generations of young astronomers. The American Association of Variable Star Observers is proud to publish this wonderful book. Hardcover 176 pages + xviii, 18 pages of photos, with references, complete bibliography, and a foreword by AAVSO Director, Janet A. Mattei.
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This timely book marks the AAVSO’s centennial year, presenting an authoritative and accurate history of this important association. Writing in an engaging and accessible style, the authors move chronologically through five eras of the AAVSO, discussing the evolution of its structure and purpose.

Throughout the text, the main focus is on the thousands of individuals whose contributions have made the AAVSO’s progress possible. Describing a century of interaction between amateur and professional astronomers, the authors celebrate the collaborative relationships that have existed over the years. As the definitive history of the first hundred years of the AAVSO, this text has broad appeal and will be of interest to amateur and professional astronomers, as well as historians and sociologists of science in general.

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AAVSO 49 Bay State Rd. Cambridge, MA 02138 aavso@aavso.org 617-354-0484