Document Type : Research Paper

Author

• Mohammad Hasan Ganji

Abstract

In the fourth issue of the Sepehr Magazine, we referred to the earth's situation in space and wrote a few brief articles about the extent of the world and astronomical scales. Since then, there has been a great transformation in the development of general geographic and astronomical information in the Islamic Republic of Iran. It is therefore not irrelevant to allocate the article of this issue to young readers who are interested in the topic of this great development, and this is the establishment of the Planetarium of Tehran, which was officially opened by the Minister of
Defense and Support of Armed Forces on May 17th of this year.
The Planetarium is a dome-shaped building made to facilitate astronomical training and is equipped with technically advanced devices with which it is possible to observe what there are in the real sky on a smaller sky (formed by images below the dome of the Planetarium).