1 / 11

Taking Sights and Finding Ho, LHA and Dec Quiz

Taking Sights and Finding Ho, LHA and Dec Quiz. Global Navigation Chapter 3. Question 1. Parallax corrections for the moon are always positive . A True B False. Question 2. The additional parallax correction for Venus can sometimes be negative . A True B False. Question 3.

randolpha
Download Presentation

Taking Sights and Finding Ho, LHA and Dec Quiz

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. TakingSights and Finding Ho, LHA and DecQuiz Global Navigation Chapter 3

  2. Question 1 Parallax corrections for the moon are always positive. A True B False.

  3. Question 2 The additional parallax correction for Venus can sometimes be negative. A True B False

  4. Question 3 At a particular time, the GHA of Sirius is 190°01,8' and the GHA of Aries is 291°17,4'. What is the SHA of Sirius? Thus, GHA Sirius = 190°01,8’ Add+ 360° Sub-total550°01,8’ SubstractGHA Aries- 291°17,4’ SHA Sirius 258°44,4’ GHA Star = SHA Star + GHA Aries

  5. Question 4 SHA Star + GHA Aries = GHA Star – Lo West = LHA Star. LHA Star iszero as Pollux has transitedyourmeridian. Longitude is 076°56,3’W. LHA Star 0° Lo(W) +76°56,3’ GHA Star76°56,3’ Add + 360° Sub-total436°56,3’ SHA Star -243°42,7’ GHA Aries193°13,6’ As GHA Ariesis 193°13,6’ Longitude (W) - 76°56,3’ LHA Aries116°17,3’ • Your GPS position is L28°01,8' N, Lo076°56,3' W and Pollux has just transited your meridian. • What were the GHA and LHA of Aries at the time if SHA of Pollux was 243°42,7'?

  6. Question 5 A star whose magnitude is +1,3 is brighter that a star whose magnitude is +0,6. A True B False

  7. Question 6 The times of meridian passage of the sun and moon shown on the daily pages of the Nautical Almanac are given in what kind of time? A Zone Time. B Local Mean Time. C Universal Time.

  8. Question 7 During morning twilight, you should take sights on the fainter bodies first. A True B False

  9. Question 8 If you take sights whose altitudes are less than 15°, you must make extra corrections for atmospheric pressure and temperature.

  10. Question 9 Altitude corrections for the moon are more complex than for other bodies. A True B False

  11. TakingSights and Finding Ho, LHA and DecQuiz End of Global Navigation Chapter 3

More Related