Student
Dorian Swerdlow
White Plains, NY, USA
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Captain Level V
Status: Really Big Time Sailor
Qualified days: 219
Seems like there are a few math errors
Posted 2025, Mar 20 20:46
Text says "The time between those sights was 2 minutes 48 seconds. Dividing that by 2 = 1 minute 24 seconds. Add that to 12h 15m 37s to get 12h 28m 25s." However, 12h 15m 37s + 1m 24s = 12h 17m 01s. That's not 12h 28m 25s. Anyway, this number doesn't seem to be used in further calculations.
The index correction on line 11 is shown as 1.4 degrees, but I think it is 1.4 minutes because that's what's used in the calculation for line 13.
Line 20 + line 21 = 65 deg 14.2 min, but the total is shown as 65 deg 14.5 min in line 23.
Line 24 + line 25 = N22 deg 54.9 min, but the total is shown as N22 deg 54.6 min in line 26