Algeria Flag
The national flag of Algeria is officially described as follows:
The flag of the Democratic and Popular Republic of Algeria is constituted by a green and white rectangle embossed by a red star and a red crescent.
The green must be a composition of equal yellow and blue having, according to the diagram of contrasts of Rood, a wavelength of 5.411 and the position 600 on the normal spectre. The red must be pure, of primary non-decomposable colour, and exempt of blue and yellow having, according to the above-indicated diagram, a wavelength of 6.562 and the position 285 on the normal spectre.
The star has five branches. It is inscribed in a circle whose radius is equal to the eighth of the height of the flag. It is entirely placed on the white field of the flag; two points are on the small median of the rectangle and a point is on the big median.
The radius of the outside circle of the crescent is equal to the quarter of the height of the flag.
The radius of the inner circle of the crescent is equal to the fifth of the height of the flag. The two points of the crescent delimit a big equal bow to the five sixth of the circumference of the outside circle.
The centre of the outside circle of the crescent is in the centre of the rectangle.
