USCG Nav. Astronomy Trial

USCG Navigational Astronomy Exam Trial for officer license

The U.S. Coast Guard (USCG) Navigational Astronomy Exam is a part of the requirements for mariners who are seeking certification as an Officer in Charge of a Navigational Watch (OICNW) or Master or Mate on vessels of a certain size. This exam assesses a mariner's knowledge and proficiency in celestial navigation, which is the practice of determining a ship's position using celestial bodies like the sun, moon, stars, and planets. Celestial navigation is a crucial skill for mariners, especially when electronic navigation systems fail or are unavailable.

Here are some key points to understand about the USCG Navigational Astronomy Exam:

1. Eligibility: To take the Navigational Astronomy Exam, you must meet certain eligibility requirements, which typically include having completed a U.S. Coast Guard-approved navigation training program or having equivalent sea service experience.

2. Content: The exam covers various topics related to celestial navigation, including:

- Identifying celestial bodies and their characteristics.

- Using sextants to measure angles between celestial bodies and the horizon.

- Calculating a ship's position using celestial observations and the nautical almanac.

- Determining the ship's compass error and deviation.

- Performing sight reductions and calculations for position fixes.

- Timekeeping and the use of chronometers.

Exam trial is divided into 7 parts, each of which has more than 35 questions

Application features :

- Includes charts and diagrams that can be zoomed in/out to make it easier to answer related questions

- Multiple-choice exercise

- There are 2 hints (Hint or Knowledge, Add TIME for answering), that can be used

- More than 35 questions in topic which in turn appear in 10 questions