Introduction

General description

proas is a program devoted to the computation of the visibility conditions of astronomical objects. The initial data are the observatory location, observing date, and the target coordinates. The program computes the object altitude as a function of the universal time (UT).

License agreement

proas is freely available for non-commercial use. Copyright by N. Cardiel of the Departamento de Astrofísica, Facultad de Ciencias Físicas, Universidad Complutense de Madrid, 28040, Madrid, Spain (E-mail: cardiel@ucm.es).

proas is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this software; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

If you wish to incorporate all or parts of the subroutines into other programs whose distribution conditions are different, write to the authors to ask for permission.