This is EULER, Version 2.0.

Type help(Return) for help.
Enter command: (8388608 Bytes free.)

Processing configuration file.

Done.
>load astro

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   Astronomical functions 1999-08-19
   Type 'help astro(RETURN)' for list of functions
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>help astro
function astro ()
## Astronomical functions taken from 
## Jean Meeus - 'Astronomical Algorithms'
## Montenbruck and Pfleger - 'Astronomy on the Personal Computer'
## Duffett-Smith - 'Practical astronomy with your calculator'
## other sources.
## For information on a function named fred, type 'help fred'.
##
## Report any problems or errors in these functions to
## Keith Burnett (keith@xylem.demon.co.uk)
## Latest version of this package is available from
## http://www.xylem.demon.co.uk/kepler/euler.html
##
## day        jday     gst      nutation 
## hmercury   hvenus   hearth   hmars     hjupiter    hsaturn    
## mercury    venus    sun      mars      jupiter     saturn     
## gmer       gven              gmar      gjup
## gmoon      amoon    moon     tmoon     librate
## equatorial apparent mean     altaz     raltaz
## cart       sph
## table
## ddegrees   dsin     dcos     dtan      dasin     dacos    datan    datan2
## brum       reekie   settle
##
>help tmoon
function tmoon (day,station)
## returns: topcentric equatorial coordinates of Moon
##   given: TD instant in 'day'
##          'station' - vector lat, long, height (m), temp (C), 
##          and pressure (mB) of observing location
>now = day(1999, 8, 11, 10, 17)
     -143.072 
>psun = sun(now)
      140.754       15.3374       1.01358 
>gmoon = moon(now)
      140.429       15.9114        373195 
>here = [-1.9167, 52.5, 120, 17, 1011 ]
      -1.9167          52.5           120            17          1011 
>pmoon = tmoon(now, here)
      140.729       15.3036        368556 
>pmoon - gmoon
     0.300715      -0.60774      -4639.18 
>psun - pmoon
    0.0243673     0.0337465       -368555 
>sunbrum = altaz(now, here, psun)
      137.411       46.3381       1.01358 
>moonbrum = altaz(now, here, pmoon)
      137.463       46.3176        368556 
>sunbrum-moonbrum
   -0.0516406     0.0204827       -368555 
>