Arcsecond
noun
An arcsecond is a unit of angular measurement equal to one sixtieth of an arcminute or 1/3600 of a degree.
The telescope is capable of resolving objects that are separated by an angle of just one arcsecond.
Often appears as...
- angular measurement
- arcseconds per pixel
Usage tips
Formal
precision measurement, angle measurement, astronomical observations
noun
An arcsecond is a unit of angular measurement equal to one sixtieth of an arcminute or 1/3600 of a degree.
The telescope is capable of resolving objects that are separated by an angle of just one arcsecond.
Often appears as...
- angular measurement
- arcseconds per pixel
Usage tips
Formal
precision measurement, angle measurement, astronomical observations
Definition 1 of 1
Pro Tip 1/3Understanding Precision
The term arcsecond is crucial in fields that require high precision.
Many telescopes strive for a resolution of better than 1 arcsecond.
Pro Tip 2/3Contextual Use
When talking about angles in astronomy, using 'arcsecond' instead of just degrees provides clarity.
The star's position was measured to within a few arcseconds, indicating its precision.
Pro Tip 3/3Common Mistakes
Students often confuse arcseconds with degrees. Remember, 1 arcsecond is much smaller than a single degree.
A common error is to state an arcsecond value as if it were in degrees.
Pro Tip 1/3Understanding Precision
The term arcsecond is crucial in fields that require high precision.
Many telescopes strive for a resolution of better than 1 arcsecond.
Pro Tip 2/3Contextual Use
When talking about angles in astronomy, using 'arcsecond' instead of just degrees provides clarity.
The star's position was measured to within a few arcseconds, indicating its precision.
Pro Tip 3/3Common Mistakes
Students often confuse arcseconds with degrees. Remember, 1 arcsecond is much smaller than a single degree.
A common error is to state an arcsecond value as if it were in degrees.
Pro Tip 1/3Understanding Precision
The term arcsecond is crucial in fields that require high precision.
Many telescopes strive for a resolution of better than 1 arcsecond.
Pro Tip 2/3Contextual Use
When talking about angles in astronomy, using 'arcsecond' instead of just degrees provides clarity.
The star's position was measured to within a few arcseconds, indicating its precision.
Pro Tip 3/3Common Mistakes
Students often confuse arcseconds with degrees. Remember, 1 arcsecond is much smaller than a single degree.
A common error is to state an arcsecond value as if it were in degrees.
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