Swain Sailing Basic Celestial Navigation ASA 117 - Online Virtual Class
Learn Basic Celestial Navigation as a back up to find your way home across an ocean.
Course Enrollment includes text: Celestial Navigation for Yachtsmen: 13th edition by Mary Blewitt
After this course you will be able to:
- Describe the terms and theory of Basic Celestial Navigation.
- Convert between standard time and zone time to GMT/UT in either direction.
- Calculate the zone time at a given longitude.
- Determine the times of sunrise, sunset and civil twilight for a vessel’s position.
- Describe and identify the parts, principals and operation of a traditional sextant.
- Determine altitudes of the Sun and Polaris by a traditional sextant.
- Obtain Latitude and Longitude at noon (LAN) by applying the sextant corrections for conversions of the raw sextant altitudes (hs) of the Sun to the true celestial altitudes (HO) of the Sun.
- Determine the vessel’s latitude and Estimated Position at morning and evening twilight by means of the altitude of Polaris.
- Plot latitudes and EPs on a chart.
This is a Online Virtual Class which will be using GoToTraining video conferencing software where all content will be provide on screen with live audio interaction between the Instructor and Students just as in a classroom setting. Total class time is 10 hours broken into 5 weekly sessions.
Required class dates and times are as follows:
- Thursday September 3rd- 6pm – 8pm EST | 5pm - 7pm CST
- Thursday September 10th - 6pm – 8pm EST | 5pm - 7pm CST
- Wednesday September 16th - 6pm – 8pm EST | 5pm - 7pm CST
- Thursday September 17th - 6pm – 8pm EST | 5pm - 7pm CST
- Wednesday September 23rd- 6pm – 8pm EST | 5pm - 7pm CST
Once you sign up you will receive the class registration information within 24 hours. Please use the registration information to complete your enrollment and get updated with the course dates and times.
You do not need to purchase any special software to join this class, however your computer does need to meet the system requirements listed below.
Windows 7 – Windows 10 or
Mac OS X 10.9 (Mavericks) - macOS Catalina (10.15)
1 Mbps or better (broadband recommended)
2GB or more of RAM
Microphone and speakers (USB headset recommended**)