LunarEclipse
LunarEclipse[] gives the time of the next lunar eclipse.
LunarEclipse[datespec] gives the time for the next lunar eclipse after the specified date.
LunarEclipse[propertyspec] gives the specified property value for the next lunar eclipse.
LunarEclipse[datespec,propertyspec] gives the specified property value for the next lunar eclipse after the specified date.
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