This video explains the theory behind the concept of 'Equation of Time'; and shows how to calculate it for application purpose.
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Contents of this video will benefit mariners preparing for exams (written and oral examinations).
Mariners will also benefit by watching the following videos:
Meridian Passage (Theory): https://www.youtube.com/watch?v=Ks3bINt51yQ&list=PLjZi6sSb2w5bPRRU1h-uno-vGhQrnMbPa&index=37
Meridian passage (Sun – example 1): https://www.youtube.com/watch?v=S2G47gAmtrc&list=PLjZi6sSb2w5bPRRU1h-uno-vGhQrnMbPa
Meridian Passage (Star): https://www.youtube.com/watch?v=Q4LQa0QhXGI&list=PLjZi6sSb2w5bPRRU1h-uno-vGhQrnMbPa&index=22
Meridian Passage (Planets): https://www.youtube.com/watch?v=GJPm_8GAFts&list=PLjZi6sSb2w5bPRRU1h-uno-vGhQrnMbPa&index=23
Finding the reading to set on a sextant: https://www.youtube.com/watch?v=Em5txK0lb2w&list=PLjZi6sSb2w5bPRRU1h-uno-vGhQrnMbPa&index=33
Compass error Amplitude (Sun): https://www.youtube.com/watch?v=_e_8ISX7DUY&list=PLjZi6sSb2w5bPRRU1h-uno-vGhQrnMbPa&index=2
Compass error Azimuth (Sun – example 1): https://www.youtube.com/watch?v=ce22aU2sQiU&list=PLjZi6sSb2w5bPRRU1h-uno-vGhQrnMbPa&index=3
Compass error using azimuth method (Star – example 1): https://www.youtube.com/watch?v=VvbgXk2n1h0&list=PLjZi6sSb2w5bPRRU1h-uno-vGhQrnMbPa&index=25
Longitude and time: https://www.youtube.com/watch?v=xW9Tx0Bkr8I&list=PLjZi6sSb2w5bPRRU1h-uno-vGhQrnMbPa&index=4
Correcting sextant altitudes: https://www.youtube.com/watch?v=-Jgja-idPfI&list=PLjZi6sSb2w5bPRRU1h-uno-vGhQrnMbPa&index=5
Finding LHA and declination: https://www.youtube.com/watch?v=v_pLrdQ2ZpQ&list=PLjZi6sSb2w5bPRRU1h-uno-vGhQrnMbPa&index=6
Intercept (Sun): https://www.youtube.com/watch?v=PI3wtc-C_CY&list=PLjZi6sSb2w5bPRRU1h-uno-vGhQrnMbPa&index=7
Staggered observations (Example 1): https://www.youtube.com/watch?v=uByKtc4Cy9U&list=PLjZi6sSb2w5bPRRU1h-uno-vGhQrnMbPa&index=8
Variation, deviation, and compass error: https://www.youtube.com/watch?v=V7XETmz9Md0&list=PLjZi6sSb2w5bPRRU1h-uno-vGhQrnMbPa&index=9
Longitude, GHA and LHA: https://www.youtube.com/watch?v=AgOH2lOrRWc&list=PLjZi6sSb2w5bPRRU1h-uno-vGhQrnMbPa&index=10
Ambiguity of chronometer time: https://www.youtube.com/watch?v=MFUVqiyqiNw&list=PLjZi6sSb2w5bPRRU1h-uno-vGhQrnMbPa&index=11
Twilight: https://www.youtube.com/watch?v=o4q4f_Lwtlk&list=PLjZi6sSb2w5bPRRU1h-uno-vGhQrnMbPa&index=12
Calculating sunset time: https://www.youtube.com/watch?v=AR6d2emxBY0&list=PLjZi6sSb2w5bPRRU1h-uno-vGhQrnMbPa&index=13
Long by chron (Sun): https://www.youtube.com/watch?v=AjyNrjkSXFI&list=PLjZi6sSb2w5bPRRU1h-uno-vGhQrnMbPa&index=14
Ex-meridian (Sun): https://www.youtube.com/watch?v=OaxOEUlkYeA&list=PLjZi6sSb2w5bPRRU1h-uno-vGhQrnMbPa&index=18
Polaris: https://www.youtube.com/watch?v=cvsA8XZ4xDI&list=PLjZi6sSb2w5bPRRU1h-uno-vGhQrnMbPa&index=27
PZX triangle: https://www.youtube.com/watch?v=jzp5b-51N5g&list=PLjZi6sSb2w5bPRRU1h-uno-vGhQrnMbPa&index=35
Venus as morning or evening star: https://www.youtube.com/watch?v=VOQVDHH3zzQ&list=PLjZi6sSb2w5bPRRU1h-uno-vGhQrnMbPa&index=38
Circumpolar bodies (Theory): https://youtu.be/iXOvsp_Xql4
Circumpolar bodies (worked example): https://youtu.be/NbB_58Yx9tY
Great circle sailing: https://www.youtube.com/watch?v=HE8gBGWKnz8&list=PLjZi6sSb2w5bPRRU1h-uno-vGhQrnMbPa&index=40
Composite great circle sailing: https://www.youtube.com/watch?v=7OoQDUudU30&list=PLjZi6sSb2w5bPRRU1h-uno-vGhQrnMbPa&index=48
Plane sailing (example 1): https://www.youtube.com/watch?v=lBK2eRJ3h3w&list=PLjZi6sSb2w5bgOQ9xEL99Z8LBCyKBoNXt&index=3
Mercator sailing (Example 1): https://www.youtube.com/watch?v=_HGmr22V668&list=PLjZi6sSb2w5bgOQ9xEL99Z8LBCyKBoNXt&index=5
Calculate mean latitude: https://www.youtube.com/watch?v=iMUazHWo4uY&list=PLjZi6sSb2w5bgOQ9xEL99Z8LBCyKBoNXt&index=10
Day’s work (wind and leeway): https://www.youtube.com/watch?v=blMCIVDL7Vk&list=PLjZi6sSb2w5bgOQ9xEL99Z8LBCyKBoNXt&index=11
Horizontal sextant angles: https://www.youtube.com/watch?v=XJDKHhtcxMU&list=PLjZi6sSb2w5bgOQ9xEL99Z8LBCyKBoNXt&index=12
The use of position lines: https://www.youtube.com/watch?v=HlKFaIaaZWs&list=PLjZi6sSb2w5bgOQ9xEL99Z8LBCyKBoNXt&index=13
Rising and dipping of lights: https://www.youtube.com/watch?v=bxb9-IoG3PI&list=PLjZi6sSb2w5bgOQ9xEL99Z8LBCyKBoNXt&index=14
Tidal window calculations: https://www.youtube.com/watch?v=eq_4LHi1kvU&list=PLjZi6sSb2w5bgOQ9xEL99Z8LBCyKBoNXt&index=18
Secondary port tide calculations: https://www.youtube.com/watch?v=tv_oYTEccg0&list=PLjZi6sSb2w5bgOQ9xEL99Z8LBCyKBoNXt&index=19
Explaining interpolation of second port tide calculation: https://www.youtube.com/watch?v=y783OI-tjh0&list=PLjZi6sSb2w5bgOQ9xEL99Z8LBCyKBoNXt&index=21