Mean Time
From ExoDictionary
This definition page has been automatically generated. You can help ExoDictionary by expanding, updating, or correcting it. |
| This autostub has not yet had its initial copyediting proof and may contain significant formatting and even factual errors. You can improve Exodictionary by cleaning up the page markup and verifying that the definition is correct and then removing this tag. |
| This autostub has not yet had its initial categorization proof and may be categorized incorrectly. You can improve Exodictionary by removing inappropriate categories and then removing this tag. |
Mean Time
</dt>
Time based upon the rotation of
the earth relative to the mean sun.
</dd>
Mean time may be designated as local or Greenwich as the
local or Greenwich meridian is the reference. Greenwich mean time is also
called universal time. Zone, standard, daylight saving or summer, and
war time are also variations of mean time, specified meridians being used as
the reference. Mean time reckoned from the upper branch of the meridian is
called astronomical time. Mean time was called civil time in
U.S. terminology from 1925 through 1952. See equation
of time, mean
sidereal time. [[/a>|/a>]]
</dd>
References
This article is based on NASA's Dictionary of Technical Terms for Aerospace Use
