2007-07-06 20:33:43 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Physics
1/60th of a degree.
"An arc minute is a measure of angularity and is equal to one-sixtieth of a degree (there are 360 degrees in a circle)."
2007-07-06 21:09:15 · answer #1 · answered by Anonymous · 2⤊ 0⤋
These are finer divisions of a DEGREE, which is the primary unit of measure in the sky. A degree is subdivided into minutes and seconds, much like an hour is. Thus, 60 arc minutes equals one degree and 60 arc seconds equals one minute. The size of a planet in the sky is usually given in arc seconds (Ex: Jupiter is about 38 arc seconds in diameter).
An arc minute (symbol ´) is one-sixtieth of a degree, and an arc second (symbol ") is one-sixtieth of an arc minute.
2007-07-07 03:39:49 · answer #2 · answered by wunder_bred 3 · 1⤊ 0⤋
Angle subtended by an arc equal to 1/60th of a degree
2007-07-07 03:45:03 · answer #3 · answered by Swamy 7 · 1⤊ 0⤋
A circle has 360 degrees, each of which has 60 minutes and each one of those has 60 arc minutes (or seconds).
2007-07-07 03:46:53 · answer #4 · answered by Dr. Nightcall 7 · 0⤊ 1⤋
An arc minute is 1/60th of a minute (its just another name for a second), whereas an arc second is 1/60th of a second.
2007-07-07 03:37:01 · answer #5 · answered by Anonymous · 0⤊ 1⤋
unit of angular measurement, equal to one sixtieth (1/60) of one degree
2007-07-07 03:38:02 · answer #6 · answered by flatfoot 3 · 1⤊ 0⤋