*What is AAVSO?*
The American Association of Variable Star Observers was formally founded in 1911 as an organization devoted to the study of variable stars, and to the support and encouragement of the valuable contributions of all researchers -- amateur and professional -- to this important field. After nearly a century, the AAVSO continues to fulfill its role of advancing variable star research by preserving and sharing its data archive of more than 34 million variable star observations, and by fostering collaboration between the world-wide amateur and professional astronomical communities.
*The AAVSO's Impact On Science*
From its beginning, the AAVSO has been focused on the science of variable star astronomy, and its goal has been to aid both amateur and professional astronomers in pursuit of this goal. Today the AAVSO and its observer community contributes to science in a number of ways.
AAVSO provides free access to the AAVSO International Database -- their primary archive of variable star observations collected over the past century
They provide a communication link between the observer community and the research community by announcing important astrophysical events, establishing new research programs and observing campaigns, and maintaining an open and effective service that enables observers to submit data and researchers to access it, all in real time
AAVSO works with the research community to interpret and analyze our data archives, maximizing the value of our visual, photographic, photoelectric, and CCD data archives
AAVSO is providing the community with new comparison stars and new photometry, including the AAVSO Photometric All-Sky Survey, APASS
AAVSO provides key services to both amateur and professional observers, including: AAVSOnet, the AAVSO's network of remote, robotic observatories.
The AAVSO can have a positive impact on your research programs.
*AAVSO invites you to partner with them to make your research happen!*
AAVSO has established ccd school for students, especially undergraduates which aims at enhancing photometric skill of the observers.
Below is the link of photometry guide.
Below is the video released by ccd school of AAVSO explaining good photometry.
Photos received by AAVSO goes through close scrutiny. Image pipeline is shown below.