The Fermilab Library - Astronomical Telegrams
Fermilab employees who are interested in an e-mail subscription to the InternationalAstronomical Union’s Astronomical Telegrams mayrequest to be added to the Library’s subscription at no charge. Subscribers receive about 5 to 10 e-mails weekly of IAU Circulars giving “information about astronomical phenomena requiring prompt dissemination, particularly the discovery and follow-up of novae, supernovae and comets.” Subscribers also have online access to all of the IAU Circulars. These Circulars are provided by the Smithsonian Astrophysical Observatory.
See Wikipedia for a history of IAU’s Astronomical Telegrams: Central Bureau for Astronomical Telegrams