11. Those tests were partly carried out on the Infrared Optical Telescope Array Observatory. 12. For the photometric observations of asteroids, the department uses 65 cm optical telescope . 13. Infrared Optical Telescope Array observations suggest another companion at 18.6 mas. 14. The one meter Dall-Kirkham reflector ( ) is the largest optical telescope in Finland. 15. For further information on simple optical telescopes , see Refracting telescope ?Refracting telescope designs. 16. The satellite was designed to identify missile launches using optical telescopes and infrared sensors. 17. Currently, a 130-cm optical telescope is working at the site. 18. The satellite is designed to identify missile launches using optical telescopes and infrared sensors. 19. Technology has enhanced the abilities of fixed optical telescopes , as well as radio telescopes. 20. "You'll be able to do it all through optical telescopes .
