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Length/Distance | Convert from button measure to spat |
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Common Length Conversions Metric Length Conversions Unit Definition (button measure) The button measure is a unit of distance equal to 1/40 inch (0.635 millimeter), used to measure the thickness of buttons. Unit Definition (spat) The spat is an informal unit of distance formerly used by astronomers. The spat is equal to the terameter (Tm, or 10E12 meters). This is equivalent to about 6.6846 astronomical units. The origin of this usage is not clear; "spat" may be an acronym for "space unit" or "space-time".
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