Measuring Degrees with your hand

 

How to Measure

Hold your arm at full length, close one eye and sight along the arm with the other eye. Then, based on how you hold your hand, you can measure different angles.

#1: Stretch your thumb and little finger as far from each other as you can. The span from tip to tip is about 25 degrees.

#2: Between your index finger and little finger the span is 15 degrees.

#3: Make a fist held at arms length, and hold it with the back of your hand facing you. The width is 10 degrees.

#4: Hold your hand at arm's length, and extend your middle, ring, and pinky fingers, with the three fingers touching. The width of your three fingers is about 5 degrees.

#5: Hold your hand at arm's length, and extend your little finger. The width of your little finger is about 1.5 degrees.

The width of a full Moon, as viewed from the Earth's surface, is about 0.5 degree.
The width of the Sun, as viewed from the Earth's surface, is also about 0.5 degree.

(=degrees, 00'=arc minutes, "= arc seconds)

1 degree = 1 = 1/360 of a circle

1 arcminute = 1' = 1/60 of a degree

1 arcsecond = 1" = 1/60 of an arcminute = 1/3600 of a degree

 

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