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Suzy B Software 2
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Suzy B Software CD-ROM 2 (1994).iso
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jul_gmst
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jul_gmst.pas
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Pascal/Delphi Source File
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1995-05-02
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1KB
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53 lines
program jd; { Berechne julianisches Datum und Greenwich Mean Siderial Time }
type
ZEIT = record
stunde:0..23;
minute,sekunde:0..59
end;
DATUM = record
jahr:integer;
monat:1..12;
tag:1..31
end;
JUL = record
ganz:long_integer;
fract:real
end;
var dummy:integer;
c:char;
gmst,lokal:ZEIT;
jd:JUL;
date:DATUM;
greg:boolean;
procedure juldat(var julian:JUL; gregorian:DATUM; uhrzeit:ZEIT; flag:boolean);
external;
procedure sidtime(var sternzeit:ZEIT; julian:JUL);
external;
begin
writeln(chr(27),
'H< CALCULATE JULIAN DATE AND GREENWICH MEAN SIDERIAL TIME >');
writeln;
write('> Date yyyy mm dd : '); readln(date.jahr,date.monat,date.tag);
write('> Greg. (y/n) : '); read(c);
if c = 'y' then greg := true else greg := false;
writeln;
write('> Time hh mm ss : ');
readln(lokal.stunde,lokal.minute,lokal.sekunde);
writeln; writeln;
juldat(jd,date,lokal,greg);
writeln(' Julian date : ',jd.ganz,jd.fract:10:6);
sidtime(gmst,jd);
writeln(' Greenwich Mean Siderial Time : ',
gmst.stunde:3,gmst.minute:3,gmst.sekunde:3);
while not keypress do ;
end.