STARPOS

STARPOS is a program to show the visibility of objects from a particular site. The ephemeris accuracy is sufficient for the stated purpose. Moon coordinates are only accurate to a few degrees, though.



Select site:
Date: Day (dd)    Month (mm)    Year (yyyy)
Input object(s):
                     

Input syntax: 
         name1 <carriage return>
         hh.mm dd.mm <carriage return>
         name2 <carriage return>
         hh.mm dd.mm <carriage return>
         etc.      
         The dot (hh.mm) in R.A. and Dec. can be replaced by a colon (hh:mm).
   
         example: 
   
         NGC 244
         12.10 30.24
         NGC 1023
         2.40 39.03
         NGC 1340
         03.2820 -31.0404
         etc.

Starpos was initially written by James S. B. Dick at the RGO in 1982 and substantially modified by Roderick M. Johnstone (RGO 1985) to choose any site, and by Enrique Perez (IAA) since, to optionally plot (PGPLOT) output and other changes. Jose Acosta (IAC) ported to UNIX (SunOS) and made some changes: include astronomical twilights (upper sun limb is 12 degrees below the horizon). Nor the authors nor the Kapteyn Astronomical Institute take any responsibility for the outcome of Starpos.

Maintained by:  M. Vogelaar Homepage RUG