The rainbow is not limited to a small bench. The rainbow is a symbol of light from the sunlight that penetrates a circle of water, strikes once after a drop, and exits. Described in this way, the main rainbow is present in all viewing arms from 0 ° to 42 ° and thus forms a wide disk. The viewing angle is the angle formed between the direct point of the sun and the direction you want. It is true that the softest and most pure part of the rainbow is found only on a small bench from about 41 ° to 42 °, but this is only one part of the rainbow. There are three main parts to the main rainbow:

The bright and almost pure color spectrum is present on a small bench from about 41 ° to 42 ° (including red, orange, yellow, green, blue, violet).

Darker, more subtle colors found on a small bench from about 39 ° to 41 ° (purple, green, gray).

Exhaust white color on a wide disk from 0 ° to 39 °. This dull white color just makes the background look brighter.