@SFOMuseum Instagram Posts This is SFO Museum's archive of the @SFOMuseum Instagram account. from January 13, 2019

In his series, "Standard Stars", Eric William Carroll examines and engages with an archive of decaying astronomical glass plate negatives held by the Pisgah Astronomical Research Institute in Rosman, North Carolina. This image was posted on January 13, 2019. #ericcarroll #standardstars #astronomy #photography #cosmos #decay #glassplatenegative #negatives