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.
Mga Sample na Tanong
Narito ang ilang halimbawang tanong mula sa quiz na ito. I-download ang GYRO app upang kunin ang buong pagsusulit.
Tanong 1
The true zenith distance of the Sun when on the observer’s meridian bearing South is 6° 57.4′ and the declination is 14° 36′.2 S. Calculate the observer’s latitude.
Tanong 2
To an observer in longitude 172° E, the Local Hour Angle (LHA) of a star is 315°. If the Sidereal Hour Angle (SHA) of the star is 036°, what is the GHA of Aries?
Tanong 3
To an observer in longitude 164° E, the LHA of the sun is 26°. What is the GHA of the sun?
Tanong 4
To an observer in longitude 65° W, the Local Hour Angle (LHA) of a star is 48°. If the Siderial Hour Angle (SHA) of the star is 217°, what is the Greenwich Hour Angle (GHA) of:
Tanong 5
The summer solstice in the southern hemisphere is approximately on:
