Description Usage Arguments Details Value Author(s) Examples
The functions for creating a time (or time sequences) measured in Greenwich Mean Time (gmt), Greenwich Sidereal Time (gst), Local Sidereal Time (lst), Local Time (lt).
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jday |
Julian Day Number |
hour |
hour |
minute |
minute |
second |
second |
epoch |
epoch |
length |
length |
by |
step in sequence |
... |
additional arguments |
lambda |
longitude of the observer, default taken from options |
The functions gmt() and lt() are simple time series generators. By default they take current time expressed as local or GMT.
The functions lst() and gst() compute sidereal times for given Julian Day Number and time. Default is for now.
A vector containing times expressed as hours from 00h 00m 00s, of class "time".
Lukasz Komsta
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time
1 9h 20m 26s
time
1 9h 20m 26s
time
1 7h 9m 15s
time
1 7h 9m 15s
Warning message:
In lst() :
Your longitude is not set in the environment, assuming it is equal to 0
time
1 20h 10m 5s
time
1 8h 37m 15s
2 9h 37m 15s
3 10h 37m 15s
4 11h 37m 15s
5 12h 37m 15s
6 13h 37m 15s
7 14h 37m 15s
8 15h 37m 15s
9 16h 37m 15s
10 17h 37m 15s
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