The StellarMate Plus Manual
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This module converts between the calendar Date and time, the Julian Day, and
the Modified Julian Day. The Modified Julian Day is simply equal to the Julian Day
- 2,400,000.5.
To use the module, enter one of the three dates and the corresponding values for
the other two date systems will be displayed. You can also set the Date and time
to now, by pressing the Now button.
There is a batch mode for this module. To use it, simply generate an input file
whose lines each contain a number of values for the input parameter: “Date and
time”, “Julian day” or “Modified Julian day”. Then specify the input and output
filenames, and press the Compute button to generate the output file. The output
file will contains values for the other two complementary parameters. For
example, if your input file contains a set of “Date and time” values, then each line
of the output file will contain values for “Julian day” and “Modified Julian day”.
You can read the output directly in KStars by pressing the View output button.
Tip
Exercise:
What calendar date does MJD = 0.0 correspond to?
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