Calcium-K… › Forums › Mercury › Transit of Mercury › Calcium-K… 11 May 2016 at 9:09 pm #577377 Pete LawrenceParticipant Calcium-K… http://www.digitalsky.org.uk/Gallery/transit-of-mercury-2016/images/large/2016_05_09_145732_Cak_PST_ToM.jpg
