Table of Contents

Class Prep

Class 1
Class 2
Class 3
Class 4
Class 5
Class 6
Class 7
Class 8
Class 9
Class 10

>>Topical Articles<<
Assumed Longitude
Casio fx-260 Solar II
Emergency Navigation
Making a Kamal
Noon Sight
Pub. 249 Vol. 1
Sextant Adjustment
Sextant Skills
Sight Averaging
Sight Planning,
  Error Ellipses,
  & Cocked Hats
Slide Rules
Standard Terminology
Star Chart
The Raft Book
Worksheet Logic

Class 4:  July 30, 2019

New Pages Added to This Web Since Last Week

Class Plan

  • Ofer's comments/questions from textbook
  • Using iPhone calculator to calculate error ellipses. This helps one evaluate whether he has a sufficient "cut" between two celestial objects.
  • Reduce and plot Ofer's moon sight
  • Reduce and plot Ofer's star sight

Materials Required

  • Sight reduction worksheet
  • Plotting sheet


Homework Assignment

  • Review the new and changed pages at this web site.
  • Reading assignment in textbook: Chapter 7, Star Sights and Chapter 9, Moon Sights
  • In next week or two, get out on a boat and take 4 sights of the same object within 6 minutes. We will use this data to learn sight averaging.