My name is Michal Valášek, but I am better known as Altair or Rider, because this is name I use on the Internet.
Altair: brightest star in constellation of Eagle. Also name of my character in roleplaying games and first name I used on Internet. Name of fitst computer (eight bit) running Microsoft software.
Rider: (although I am more horse than rider :), is name I am known under mainly in Czech BDSM scene.