can you tell me something more about it?
An optical instrument using lenses, curved mirrors, or a combination of both to observe distant objects.
Telescope
A telescope is an optical instrument using lenses, curved mirrors, or a combination of both to observe distant objects, or various devices used to observe distant objects by their emission, absorption, or reflection of electromagnetic radiation. 
what is h ii region? A region of interstellar atomic hydrogen that is ionized. where is it located? The Orion Nebula, the Eta Carinae Nebula, and the Berkeley 59 / Cepheus OB4 Complex. how far is it from earth? Sometimes several hundred light-years across. when was it first observed? 1610 and by whom? Nicolas-Claude Fabri de Peiresc who was he? French astronomer, antiquary and savant. did he like collecting things? Yes, he was an avid art collector. what kind of art did he prefer? He became the first admirers and supporters of Caravaggio in France. when did he first start his career as an astronomer? UNANSWERABLE what object did he use to observe the orion? Telescope
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Telescope [SEP] Introduction
A telescope is an optical instrument using lenses, curved mirrors, or a combination of both to observe distant objects, or various devices used to observe distant objects by their emission, absorption, or reflection of electromagnetic radiation. The first known practical telescopes were refracting telescopes invented in the Netherlands at the beginning of the 17th century, by using glass lenses. They were used for both terrestrial applications and astronomy. The reflecting telescope, which uses mirrors to collect and focus light, was invented within a few decades of the first refracting telescope. In the 20th century, many new types of telescopes were invented, including radio telescopes in the 1930s and infrared telescopes in the 1960s.