Points of the compass

From WikiMD's medical encyclopedia

(Redirected from Northwest)

Points of the compass are directions or positions on a compass, which is a navigational instrument used to determine direction relative to the Earth's magnetic poles. The primary points of the compass are North, South, East, and West. These are often denoted by their initials: N, S, E, and W. The points of the compass are crucial for navigation, map reading, and in various scientific and military contexts.

Primary Points

The primary points of the compass divide the horizon into four equal parts. These are:

  • North (N) - It is the direction that, in the Northern Hemisphere, points towards the North Pole. It is opposite to south.
  • South (S) - This direction points towards the South Pole and is opposite to north.
  • East (E) - East is the direction perpendicular to north and south and is in the direction of the Earth's rotation.
  • West (W) - West is opposite to east and is the direction in which the sun sets.

Secondary Points

Between the primary points are the secondary points, which are Northeast (NE), Southeast (SE), Southwest (SW), and Northwest (NW). These directions are at an angle of 45 degrees to the primary points and divide the compass into eight directions.

Tertiary and Quaternary Points

Further divisions can be made to provide even more precise directions. The tertiary points are located halfway between the primary and secondary points, and the quaternary points are located between the primary and tertiary points or secondary and tertiary points. This division results in 16 total directions.

Compass Rose

The diagram showing the points of the compass is known as a compass rose. It displays the directions and is often found on maps, nautical charts, and navigation devices. The compass rose has been an essential tool for navigation since the 14th century.

Magnetic Compass

The magnetic compass is a type of compass that uses the Earth's magnetic field to show direction. The magnetic needle of the compass aligns itself with the Earth's magnetic field, pointing towards the magnetic poles, which are close to but not exactly at the geographical poles.

True North vs. Magnetic North

True North refers to the direction towards the geographic North Pole, while Magnetic North is the direction the compass needle points, which is towards the Magnetic North Pole. The angle between True North and Magnetic North is known as magnetic declination, which varies depending on location.

Navigation and Orientation

Understanding the points of the compass is essential for navigation and orientation. It allows individuals to determine their direction of travel, plan routes, and navigate through unfamiliar territories. The points of the compass are also used in various scientific fields, including geology, astronomy, and meteorology, to describe the orientation of features or observations.

Cultural Significance

The points of the compass have also held significant cultural and symbolic meanings in various civilizations. They are often associated with elements, colors, and spiritual beings in different cultures.

Emoji u1f30e.svg
This article is a stub related to geography. You can help WikiMD by expanding it!


Navigation: Wellness - Encyclopedia - Health topics - Disease Index‏‎ - Drugs - World Directory - Gray's Anatomy - Keto diet - Recipes

Transform your life with W8MD's budget GLP-1 injections from $125.

W8mdlogo.png
W8MD weight loss doctors team

W8MD offers a medical weight loss program to lose weight in Philadelphia. Our physician-supervised medical weight loss provides:

NYC weight loss doctor appointments

Start your NYC weight loss journey today at our NYC medical weight loss and Philadelphia medical weight loss clinics.

Linkedin_Shiny_Icon Facebook_Shiny_Icon YouTube_icon_(2011-2013) Google plus


Advertise on WikiMD

WikiMD's Wellness Encyclopedia

Let Food Be Thy Medicine
Medicine Thy Food - Hippocrates

Medical Disclaimer: WikiMD is not a substitute for professional medical advice. The information on WikiMD is provided as an information resource only, may be incorrect, outdated or misleading, and is not to be used or relied on for any diagnostic or treatment purposes. Please consult your health care provider before making any healthcare decisions or for guidance about a specific medical condition. WikiMD expressly disclaims responsibility, and shall have no liability, for any damages, loss, injury, or liability whatsoever suffered as a result of your reliance on the information contained in this site. By visiting this site you agree to the foregoing terms and conditions, which may from time to time be changed or supplemented by WikiMD. If you do not agree to the foregoing terms and conditions, you should not enter or use this site. See full disclaimer.
Credits:Most images are courtesy of Wikimedia commons, and templates, categories Wikipedia, licensed under CC BY SA or similar.

Contributors: Prab R. Tumpati, MD