About Gunma Astronomical Observatory

Gunma Astronomical Observatory is designed for both astronomical research and public use, established in April 1999 by Gunma prefecture. It is equipped with all devices and facilities needed to conduct full-scale observational research, including a telescope of 1.5 meters in diameter.

Based upon fundamental philosophy of providing every visitor with a real experience, we are also engaged in educational activities that are linked to school or life-long education to spread astronomical observation, as well as observational research activities at our observatory.

We are hoping that all of those who visit our observatory come in contact with wonders of their cosmos or the latest information about astronomy; thereby being able to have an opportunity to think about nature, the environment and the future of the human race in general.

150 cm reflector monuments (Jantar Mantar) exhibitions
Real experience
We provide you with the opportunity not only to see stars or the space through a telescope, but to come in contact with researchers who are tackling their projects enthusiastically and the latest astronomical research activities so that you can go through an extensive range of "real" experiences.
Open to the public
Gunma astronomical observatory is based upon the principle of throwing our facilities open to the public. Not only our facilities, but data or information gathered at the observatory are widely accessible to anyone, including children, astronomical buffs or researchers.
Cooperation with schools and life-long education
We provide a broad audience with the opportunity to learn through experiences in school education, as well as a wide range of opportunities for pursuing life-long education according to the level of knowledge and age groups.
Observational research
Full-scale research activities are essential to promote live education. To this end, we are also moving ahead with research which can contribute to the progress of astronomy, while making efforts to bring along researchers extensively.
International cooperation
We receive and foster researchers from many different parts of the world, while being engaged in cooperative activities on a global scale, such as international joint observational projects.

In order to protect our beautiful starlit sky, at Takayama Villege where Gunma astronomical observatory is situated, "Lighting Environmental Ordinance" was enacted in 1998 that regulates illumination that lights the night sky higher than the horizontal level.