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Increase Astronomical Discoveries by Storing Your Spectroscopic Observations with AVSpec

A new database created by AAVSO enables amateur to experienced observers to record data from any variable object in the sky

Data Milestone Achieved in AAVSO’s Variable Star Repository, VSX

CAMBRIDGE, Mass. (October 14, 2019)—Compiling together multiple pieces of information for each of a million-plus objects is no easy or quick task, but that is exactly what Sebastián Otero, Patrick Wils, Patrick Schmeer, and Klaus Bernhard did.

Journal of the AAVSO May Be Innovative Experience with New Editor, Nancy Morrison

CAMBRIDGE, Mass. (Sept. 26, 2019)—For the past ten years, under the guiding hand of Editor-in-Chief Professor John Percy (University of Toronto), the Journal of the American Association of Variable Star Observers (JAAVSO) has flourished. Starting October 1, 2019, the scholarly journal’s pages will see new Editor-in-Chief Professor Nancy Morrison (University of Toledo) at the keyboard implementing her vision.

AAVSO observers help solve a mystery about an important variable star

A group of astronomers led by Dr. James Miller-Jones of Curtin University and the International Centre for Radio Astronomy Research have published a revised distance to the famed variable star SS Cygni, solving a major mystery surrounding this star and its behavior.  Their work was made possible due to the dedication of dozens of observers worldwide who monitor SS Cygni and report their observations to the American Association of Variable Star Observers (AAVSO).

SN 2011fe

Welcome to the AAVSO's special webpage devoted to SN 2011fe!

UN PROYECTO DE CIENCIA CIUDADANA DE 100 AÑOS ALCANZA LOS 20 MILLONES

Un proyecto de ciencia ciudadana en desarrollo desde hace más de 100 años alcanzó un punto clave este mes, cuando un astrónomo aficionado contribuyó con la observación número 20 millones de una estrella variable.

20-MILLION MILESTONE FOR 100-YEAR CITIZEN SCIENCE PROJECT

A citizen science project running for over 100 years reached a key milestone this month when an amateur astronomer contributed the 20 millionth observation of a variable star on February 19, 2011.

Testing taxonomy

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