AstroAlert List Information

Sky & Telescope's AstroAlert mailing list notifies advanced amateur astronomers of the need for follow-up observations of transient sky events, such as comets, supernovae, variable stars, etc. We send these out every once in a great while when professionals need round-the-clock aid in their observations.

Please note that AstroAlert is intended for advanced amateur astronomers and professional researchers. Casual stargazers should instead sign up for our Weekly Bulletin.

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