The celcoo program ("celestial coordinates") converts right ascension and declination to hour angle, altitude, and azimuth, for a given place and time.

The program was assembled from pieces of other programs, mainly starmap and additions I had made to planet.

The celcoo program has these options:

Usage: celcoo  -R HhMmSs -D DoM'S" [-t H:M:S] [-d m/d/y] [-z tz] \
                [-a DoM'S"] [-o DoM'S"]
      R = right ascension (H=hours, M=minutes, S=seconds)
      D = declination (D=degrees, M=arcminutes, S=arcseconds)
      t = time (H=hours, M=mins, S=seconds; 24-hour clock, default=now)
      d = date (month/day/year, must supply all digits of year, default=today)
      z = timezone number (count west from Greenwich, default=central)
      a = latitude (DoM'S" [D=degrees, M=mins, S=secs] north, default=42o2')
      o = longitude (DoM'S" [D=degrees, M=mins, S=secs] west, default=88o16')
In all parameters, the (arc)seconds may be omitted, or (arc)minutes and
(arc)seconds may be omitted.  Also, the symbol after the last number (hmso'":)
may be omitted.  Use negative latitude for south, negative longitude for east.
You have to provide the right ascension and declination, but the rest are optional. Don't type any [brackets] or backslash. Type everything on one line. Note that the option letters for RA and declination are capital R and D, not small letters.


        celcoo -R 13h27 -D 44o22 -d 9/26/2014 -t 21:30
and it tells you
celcoo  Version 2.0
 Date:  September 26, 2014   Time: 21:30:00 (CDT)   Julian date: 2456927.604167
 Place: 42o 2' 0" north latitude, 88o 16' 0" west longitude
right ascension = 13h 27m  0s    declination = +44o 22'  0"
hour angle =  7h 33m 10s    altitude = +14o 57' 52"   azimuth = 317o 10' 59"