Bridge Navigation & Deck Operations

Celestial Navigation – Deck Officer Assessment

Comprehensive celestial navigation test based on practical officer-level tasks. Includes latitude by meridian altitude, GHA/LHA/SHA calculations, intercept method, azimuth & position lines, equation of time, and sextant errors. Recommended for 2/O, 3/O and exam preparation.

Questions 18

Time Limit 9 min

Language English

Sample Questions

Here are some example questions from this quiz. Download the GYRO app to take the full test.

Question 1

The Sun is on the observer’s meridian, declination is 9° 15′.0 S, Zenith distance is 46°23.9′, bearing to north. Calculate the observer’s latitude.

A 45°30′.0 N.

B 60°00′.0 S.

C 50°45′.5 N.

D 55°15′.9 S.

Question 2

A position line drawn in the direction 070°/250° could correspond to an azimuth of the observed body of:

A 150°/330°.

B 160°/340°.

C 170°/350°.

D 140°/320°.

Question 3

The Sun is on the observer’s meridian, declination is 21° S, zenith distance is 6°, bearing to North. Calculate the observer’s latitude.

A 28° S.

B 27° S.

C 26° S.

D 29° S.

Question 4

At the winter solstice, the sun will not rise at all (Polar Night) in the latitudes higher than:

A 67.5° N.

B 66.5° N.

C 65.0° N.

D 68.0° N.

Question 5

The declination of a celestial body is the:

A angle between the celestial equator and the ecliptic.

B meridian arc from equator to parallel.

C distance from the celestial equator to the celestial pole.

D angle between the horizon and the celestial body.

Celestial Navigation – Deck Officer Assessment

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