NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Greg Rudzinski
Date: 2016 Mar 16, 21:17 -0700
The metric kamal assignment for this evening was to observe Canopus at meridian passage. Fortunately Canopus is a bright star and was visible to the naked eye very low in the sky through a light haze at the end of civil twilight. Reading the kamal was quite a trick. I used my thumb nail to mark the scale and then interpolated the minutes of arc by eye. A good LED flashlight was most helpful.
19:40:00 PDT 3/16/2016 Canopus
02:40:00 UT 3/17/2016
Hs 3° 25'
ref. -13.1'
dip -2.5'
Ho 3° 9.4'
Dec 52° 42.8' S
Sum 55° 52.2'
90° - 55° 52.8' = Lat. 34° 7.8' N (GPS 34° 10.2' N)
Greg Rudzinski
From: Greg Rudzinski
Date: 2016 Mar 16, 09:33 -0700The first complete trial of the Metric Kamal has been completed with good result under perfect conditions at the beach from a height of eye of 5 ft. A 22" dowel was used in place of a tape measure. This frees up a hand (see attached image). Intercepts from GPS for 9° to 1° were all under 8' while above 9° were over 10'. Not too bad for a CN tool that took less than 30 minutes to make.
Greg Rudzinski
Attached File:
(Met
