Tanong ko parekoy, saang geographical position ang time ng sunrise 07h 38m sa Lat. 45 deg.?

Ang labo talaga. Hindi binanggit anong oras sa local time ang sunrise.

Ang daming explanation puede mo naman isimplify. Lalong di maintindihan

May part 1 to sir?

Same po ba ito sa pag kuha nang sun?

Thank you for information.

Thank you❤

Folks forget that for nearly 200 years, Sextant's could be read only to the nearest minute or maybe, half-minute of arc. Yet this was enough for the entire Planet to be explored and the World's commerce to be carried out. For an Amateur "Navigator", bouncing around on a boat 30 to 45 feet long? A mid ocean position within a few miles is more then adequate! HAPPY SAILING! And don't sweat the small stuff.

Using sun sir?

Daghan salamat sir

Thank you sir ang galing nyo po napaka clear ng pag discuss nyo may idea na ako para sa reporting namin about Mid latitude sailing

Bakit po ang Japan, Korea at Ph ay napasama sa IALA B?

solid mag turo gets ko agad kesa sa instructor ko hahahahaha

Nice

paano nyo po kinuha yung DR?

Sir wala po yung HC tutorial? thank you po

Pano naman po yung assumed latitude and longitude? Thank you

Sir saan po yung tutorial po sa Hc??

Rise or set can be calculated as a standard sight reduction. The angular height is computed by just summing corrections for astronomical refraction (about -33.8'), terrestrial refraction (about -.17' × the root of the eye height in feet), dip (about -.97' × the root of the eye height in feet), semidiameter (around -16 for the Sun or Moon), and (+) parallax in altitude. The sum is the Ho. The observed height. Using the nearest whole-degree parallel of latitude and the surmised declination, find the computed height (Hc) in "Sight Reduction Tables for Air Navigation" and the body's GHA and the instant of time. Subtract to find the height difference difference. That indicates where to draw a line of position. This is where the terminator is. Measure how many arcminutes it is east or west of your position. Adjust the time by about 4 seconds per arcminute of longitude difference.

Sir please do another video about navigation equipments

Base po sa example nyo, ano po yung ZD ninyo sir?...

hello sir pwede poba maka access sa word file nyo?

Miss ka na namin sir

hello sir! watching again this coz i don't understand his HAHAHAHA

comeback ulet kame po dito sir hahahaha

Panuod po ulet kami sir, di po namin magets ung sa prof namin ngayon eh HAHAHA

Very good explanation but language barrier.

A very nice video. Thank you so much. I looked every where for such an explaination but did not manage to find any source except your exceptional source

Using standard sight reduction methods, a sunrise line of position can be plotted. One more correction, though, is needed. It is for atmospheric refraction of the ray between the horizon and the observer. That refraction in arcminutes is .18' times the square root of the height in feet. (For a height of 100 feet the correction would be -.18 arcminute). The correction, [like the main (-33.8') correction for astronomical refraction, the horizon's dip angle, and about -16' semidiameter], is negative. The correction for parallax in altitude is positive.

Thank you sir 🙏

Your voice is disappointing

sir thank you!

Thank You po sir. This is such a gem! ✨

thankssss

Very good illustration of how to allow for the movement of the vessel during the observation period.