ANGLE Angstrom ANSI31 ANSI37 AR_B816 AR_B816C AR_B88 AR_BRELM AR_BRSTD AR_CONC AR_HBONE AR_PARQ1 AR_RROOF AR_RSHKE AR_SAND Architectural ARMORED Astro AtLeast Backward BLOCK_ANNOTATION BOX BRASS BRICK Centimeter CLAY CLAY1 CORK CROSS DASH Decameter Decimal Decimeter Deg DegreesDecimal DegreesMinutesSeconds DIMENSIONLINE DOLMIT DOTS DWG2004 DWG2008 DXF2004 EARTH Engineering ESCHER EXTENSIONLINE FLEX Foot Fractional Gigameter GOST_GLASS GOST_GROUND GOST_WOOD Gradians GRASS GRATE GRAVEL HAAligned HACenter HALeft HAMiddle HARight Hectometer HEX HONEY HOUND Inch INSUL JIS_LC_20 JIS_LC_20A JIS_LC_8 JIS_LC_8A JIS_RC_10 JIS_RC_15 JIS_RC_18 JIS_RC_30 JIS_STN_1E JIS_STN_25 JIS_WOOD Kilometer LEADER_NONE LeftCrosshair LeftToRight Lightyear LINE Meter Microinch Micron Mil Mile Millimeter MUDST Nanometer NET NET3 None NONEPAT Parsec PLAST PLASTI Rad Radians RightCrosshair SACNCR Scientific SOLID SQUARE STARS STEEL SWAMP TEXT_ANNOTATION TOLERANCE_ANNOTATION TopCrosshair TopToBottom TRANS TRIANG VABaseLine VABottom VAMiddle Yard

Lightyear Lightyear = 19 Lightyear: 9460731798 x 10^6m