points, known as half-winds, at angles of difference of 22°. The names of the half-winds are simply combinations of the principal winds to either side, principal then ordinal. E.g. North-northeast (NNE), East-northeast (ENE), etc. Using gradians, of which there are 400 in a circle, the sixteen-point rose has twenty-five gradians per point. 32-point compass roses are constructed by bisecting these angles, and coming up with quarter-winds at 11° angles of difference. Quarter-wind names are constructed with the names "X by Y", which can be read as "one quarter wind from X toward Y", where X is one of the eight principal winds and Y is one of the two adjacent cardinal directions. For example, North-by-east (NbE) is one quarter wind from North towards East, Northeast-by-north (NEbN) is one quarter wind from Northeast toward North. Naming all 32 points on the rose is called "boxing the compass". The 32-point rose has 11° between points, but is easily found by halving divisions and may have been easier for those not using a 360° circle. Eight points make a right angle and a point is easy to estimate allowing bearings to be given such as "two points off the starboard bow". Use as symbol The NATO symbol uses a four pointed rose. Outward Bound uses the compass rose as the logo for various schools around the world. An 8-point compass rose was the logo of Varig, the largest airline in Brazil for many decades until its bankruptcy in 2006. An 8-point compass rose is a prominent feature in the logo of the Seattle Mariners Major League Baseball club. Hong Kong Correctional Services's crest uses four point star. The compass rose is used as the symbol of the worldwide Anglican Communion of churches. A 16-point compass rose was IBM's logo for the System/360 product line. A 16-point compass rose is the official logo of the Spanish National University of Distance Education (Universidad Nacional de Educación a Distancia or UNED). A 16-point compass rose is present on the seal and the flag of the Central Intelligence Agency of the Federal government of the United States (the CIA). In popular culture The Compass Rose is a 1982 collection of short stories by Ursula K. Le Guin. See also Nautical star Pelorus (instrument) Points of the compass Rhumbline network Wind Rose References External links Origins of the Compass Rose The Rose of the Winds, an example of