PLANET
Keywords: astro

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PLANET

            [ASTRO\]PLANET [name] [/DRAW [Arg1 ... ArgN]] [/QUIET] [/BEAM beam]

        Compute the coordinates of a Solar System  object.  Known  objects  are:
        MOON, SUN, MERCURY, VENUS, MARS, JUPITER, SATURN, URANUS, NEPTUNE. If no
        name is entered, all objects are selected. The Option /DRAW is  used  to
        plot the object symbol on the screen.

        The  PLANET command output the planet coordinates (apparent RA, apparent
        DEC, Azimuth and Elevation at time of computation) and the sun  distance
        (with  a  warning  message  if this distance os lower than the telescope
        limit). PLANET also indicates the geocentric (DE) and heliocentric  (DS)
        distances  of the object (in AU), the apparent minor and major diameters
        (Min and Maj in arcsec), the position angle of the central meridian (PA,
        east  from north, in degrees), the brightness temperature (TB in K), the
        flux (S in Jy) at the current frequency, the  frequency  (in  GHz),  the
        beam  (in  arcsec), the main beam temperature (Tmb in K), the associated
        flux (in Jy) and the planet size convolved with the telescope beam (size
        in  arcsec).  The frequency can be entered by updating the variable FRE-
        QUENCY (in GHz). Without the option /BEAM, the beam used is deduced from
        the current observatory and frequency. User may override this default by
        giving non zero beam size (in arcsec) as an argument of  the  /BEAM  op-
        tion.

        All  these parameters are also also written in SIC variables, in the AS-
        TRO%PLANET% structure. Just enter EXAMINE ASTRO%PLANET% to  get  a  com-
        plete  list  of these variables. PLANET /QUIET suppresses all the print-
        outs on the screen.

Subsections

- PLANET /DRAW