A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Position-Finding
From: Greg Rudzinski
Date: 2018 Aug 5, 11:17 -0700
Hs is bubble octant reading raw no corrections. Hc is calculated altitude from assumed position. Sight reduction was done with Palm Pilot phone app which doesn't correct for temperature and pressure. The bubble octant has less than +/- 1' bubble error. Observations made from stability of land. Estimated temp 70° F press. 29.86 in.