Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Sunday, 18-Sep-2016 19:43:22 UTC
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Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Sunday, 18-Sep-2016 19:43:22 UTC Stephen Sekula For the record, the Hertzsprung-Russel (HR) diagram is one of the coolest things ever. Get to know a star today. https://chirp.cooleysekula.net/attachment/15611