The national flag of Nepal (Nepali language: नेपालको झण्डा), is a simplified combination of two flags from different branches of the previous rulers, the Rana dynasty. It stands out for being the only national flag that does not have a rectangular or square shape.
The flag was adopted, with the formation of the new constitutional government, on December 16, 1962. The individual flags had been in use over the previous two centuries and the double flag since the 19th century. The blue border symbolizes peace and the crimson color is the national color of Nepal.
From an astronomical point of view, the drawings portray an image of the cosmos as it would be seen from outer space by a person. It is an astral triangulation drawn in the two triangles, in the lower part the sun is seen illuminating, just above the earth’s limb, while a third star on the shadow side interacts in the landscape at the moment of twilight between the terrestrial observer and the hypothetical sidereal observer.
The two royal symbols are now reinterpreted as representing the hope that Nepal will last as long as the Sun, Earth and stars.