Full name: light month Plural form: light months Alternate
spelling: lightmonth Category type: length Scale factor:
777062051136000 The SI base unit for length is the metre. 1
metre is equal to 1.28689851542E-15 light month. Valid units
must be of the length type. You can use this form to select from
known units: I'm feeling lucky, show me some random units A
light-month (also written light month) is a unit of length. It
is defined as the distance light travels in an absolute vacuum
in one full month (thirty days of 86,400 seconds each) or
777,062,051,136,000 metres (~777 Tm).