www.verschatse.cl the site of my Master and a very special friend, Daniel Verschatse
www.heavens-above.com a very useful site to know many interesting things every night
http://apod.nasa.gov a site to see world-classastro pictures
www.achaya.cl the site of my ex astro-club, in Santiago
www.astrosurf.com a web site of my friend Victor Ramirez
www.astroventas.cl Eduardo Latorre
version en Español