The establishment of IDA Tokyo and plans for raising public awareness about light pollution Nobuaki OCHI Toyo University, Japan IDA Tokyo Chapter This work is partly supported by Grant-in-Aid for Scientific Research from the Japan Society for the Promotion of Science. 13th European Symposium for the Protection of the Night Pamplona, Spain Pamplona, Spain

NOAA Suomi NPP Japan S.Korea China Philippine Tokyo Guam Chichijima Island (Tokyo prefecture) 1000 km

Chichijima (‘Father’ Island)  About 2000 inhabitants tourists (peak season)  UNESCO World Natural Heritage in 2011  “Lights should be controlled not to affect the ecosystem. Eco- friendly lamps should be chosen.” (Guideline for the development of public facilities in Chichijima)

NOAA Suomi NPP

a government building

a prefectural office

Activities of NPO, Outreach  Saving sea turtle hatchlings from LP  Ecology tours  Star parties sands for sea turtles

SQM measurement of night skies SQM-L 21.6 Google Map

23:01, ISO s

First public lecture on LP in Chichijima

Tokyo Metropolitan Area... NOAA Suomi NPP

View from ISS tweet

View from ISS tweet

Night sky brightness by Lightmeter at Setagaya (residential), 6 km from Shinjuku (the brightest) about 50 times brighter than a natural sky

Have you ever seen the Milky Way? (n=88) asked in my classes (university students in central Tokyo)

Establishment of IDA Tokyo  In January 2013 as 57th chapter of IDA  The policy: Specialists on environment, lighting, astronomy and other fields collaborate and act together to form a better lighting environment (less LP, energy-saving).  Among collaborators are: Lighting Detectives (by people in lighting fields) Hoshizora-Kodan (by amateur astronomers) idatokyo.org

Lighting Detectives  Mr. Kaoru Mende, a well-known lighting designer, started this non-profit group in Currently about 500 members.  “To study lighting culture through the observation and surveying of urban light environments in Japan and throughout the world.”  Activities: Local and Foreign Lighting Survey, Children’s Workshops, Nightscape Watch etc.

Hoshizora-Kodan (Alliance of Starry Night Distributors)  A group of amateur astronomers to act for providing better starry skies. Established in members.  Activities: Conducting/assisting many star parties all over Japan (300+ events since 2007), researching on the night sky brightness by digital cameras etc.

What can we do together? My idea is :  Visit the 23 districts one by one  Event title: Public lecture on lighting and starry sky a caravan Wikipedia  We already have the know-how of activities.  events/year. Several years to complete all districts.

Program of the event Public lectures (1.5 hours) 1) Basics of LP 2) Report on the lighting environment of the district 3) Report on the night sky of the district Workshops for children ( hours) 1) Experiencing the darkness 2) Making an Andon 3) Dark Skies Education Kit 4) Star party

Values of the ‘caravan’ project (For the public)  Make them interested in lighting and stars  Raise awareness about LP  Make them understand that LP is around them by showing local data (For us)  By acting together for the same goal, we can exchange knowledges and opinions effectively, and understand each other.  We can attract attention of the media.  After comleting all districts, we get maps of the lighting environment and the night sky brightness.

Thank you for your attention. Gracias.