lunar occultation of a star
===========================
 
Spica
 
 
please input the calendar date
 
(month [1 - 12], day [1 - 31], year [yyyy])
< for example, october 21, 1986 is input as 10,21,1986 >
< b.c. dates are negative, a.d. dates are positive >
< the day of the month may also include a decimal part >
 
? 2,1,1987
 
please input the geographic latitude of the observer
(degrees [-90 to +90], minutes [0 - 60], seconds [0 - 60])
(north latitudes are positive, south latitudes are negative)
? 40,0,0

please input the geographic longitude of the observer
(degrees [0 - 360], minutes [0 - 60], seconds [0 - 60])
(east longitude is positive, west longitude is negative)
? -105,0,0
 
please input the altitude of the observer (meters)
(positive above sea level, negative below sea level)
? 0
 
please input the number of days to simulate
? 30
 
searching for occultation conditions ...
 
 
begin occultation conditions
----------------------------
 
calendar date  	February 18 1987
 
utc time       	12 hours 26 minutes 13.32 seconds
 
utc julian day     	2446845.01820969
 
topocentric coordinates
 
lunar azimuth angle    	213 deg 43 min 59.35 sec
 
lunar elevation angle  	32 deg 45 min 24.36 sec
 
lunar phase            	79.27
 
 
end occultation conditions
--------------------------
 
calendar date  	February 18 1987
 
utc time       	13 hours 15 minutes 56.89 seconds
 
utc julian day     	2446845.05274173
 
topocentric coordinates
 
lunar azimuth angle    	225 deg 34 min 30.72 sec
 
lunar elevation angle  	26 deg 37 min 43.62 sec
 
lunar phase            	78.97
 
 
event duration  	0 hours 49 minutes 43.57 seconds
 