"I have only drawn what I have seen with certainty."

    —Edward Emerson Barnard (1857-1923), in 1894

"Responding to criticism that he preferred an artistic drawing to an accurate one, he replied, "I know no difference between the two."

    —Richard Baum (1930-2017), reporting (2007) the words of Nathaniel Everett Green (1823-1899)

About the Deep-Sky Challenge

Overview of Variable Stars

by Bob Nelson, Ph.D. (Prince George Centre)

Explore the Universe Program

Local Certification Centres

Some RASC Centres are Local Certification Centres for the Explore the Universe certificate directly through local observing committees. If your RASC Centre is in the list below, apply to the individual named there to request your Explore the Universe certificate and pin. Normally, the certificate and pin will be presented to the recipient at a meeting of the Centre.

Index to the Bulletin 1991-1996

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