http://astro.nineplanets.org/astrosoftware.html

http://www.ap-i.net/skychart/index.php

http://bima.astro.umd.edu/nemo/linuxastro/

http://www.physics.sfasu.edu/astro/software.html

http://munipack.astronomy.cz/download.html

To maximize the window and remove the title bar

sudo apt-get install maximus