May Meeting

Date: Wednesday, 3rd May
Time: 7:30 pm
Venue: Space Place (formerly Carter Observatory)

The analemma, dials, and digits: some unusual combinations, or Clocks of the Really Long Now. – Duncan Hall

Duncan will demonstrate:

  • The main aspects of the natural phenomena that power sundials
  • Various types of solar-powered timepieces, and
  • A digital clock with a display that uses shadows cast by a mini-gnomon


Duncan Hall is a founding member of WAS. Having previously attended the Wellington RASNZ meetings, he signed up as a member of WAS when it was formed in 1974.  He thinks that was the year☺ At various times Duncan has been WAS President, Vice-President, Observatory Director, Council member, and ordinary member. He is currently a Trustee of the Gifford Observatory Trust.  He was a co-Director of the Gifford Observatory in 1974 and 1975 while at Wellington College.

Duncan’s had a long-term interest in solar-powered, low-powered, and no-powered timepieces.