Education
Commission 50 realizes the central role that education has in informing
the world community, at all levels, about the critical need to protect
our dark skies, including the regions around major observatories.
To reach the huge target audience, the WG has to work with schools
and universities, the mass media, specialized media, lighting
engineers,
biologists, government authorities, planetariums, science centers,
astronomy
clubs and so forth. This WG is therefore relying largely on being
able to work effectively with the best of the existing public outreach
organizations. A partial list of these will include the IDA,
the Astronomical
Society of the Pacific (including their project
ASTRO program), the Texas
StarDate/Universo program, Hands-on
Universe and EU Hands-On Universe,
Globe, the European
Association for Astronomy Education (EAAE),
the
Greek Educational
Project (which has produced an interactive, educational CD-ROM on
light
pollution in Greek and in English), Sky
and Telescope , the NOAO
educational outreach program in English and Spanish
and Gemini's new StarTeachers
program in English and Spanish
(which is associated
with Chile's RedLaser
schools network) over the Internet2/AMPATH/Entel
10MB/s broadcast-quality link (click here
for Spanish).
An
Introduction
to the "Light Pollution" problem
General.
Useful introductory information can be obtained
from
the December, 2002 issue of Sky & Telescope and from IDA
information sheet 18 "The theft of the Night", by David Crawford,
a member of this WG. See also Preserving
tha Astronomical Windows by/for Education by John Percy;
this
article defines the need for action in education at a world-wide level
by this WG (John is also a member). Margarita Metaxa's powerpoint
presentation was a highlight of the La Serena conference. A
Glossary of basic terms and definitions is provided in IDA
information
sheet No. 9. Good
and bad lighting fixtures are described in IDA information sheet
No.
122. The following abstract by Margarita Metaxa of this
working
group was selected by the Greek National Research Foundation for the
first
European presentation of "Physics on Stage" .
An introduction to Astronomy/Physics Education through an
Environmental
topic: activities connected with "Light Pollution".
Dr.M.Metaxa
IAU Com.50 wg on Light Pollution
IDA Education wg
Arsakeio High School, Athens, Greece
mmetaxa@compulink.gr
ABSTRACT
In this talk I will discuss new trends in teaching Astronomy
and
Physics in secondary schools, having in mind the changes that
have
been taking place in education generally ie the new era of using
professional
data bases, internet sources etc. In particular I will discuss :
1.why astronomy/physics education is important
2.the problems of astronomy/physics education
3.who are our students
4.the student learning process
5.and alternative frameworks for the enhancement of school education
in Astronomy/physics through the environmental problem of Light
Pollution.
Light Pollution problem exists most everywhere, and is still
growing
rapidly. The preservation of the astronomical environment is strongly
connected
and requires effective education. We present the model of our
educational
programme.
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Activities in
Schools/Universities.
The problem of light pollution is mainly due to the wrong choice of
lighting
in streets, shops and parking areas. That means it is a problem
for
all cities, towns and villages. We want to encourage students and
the general public to become familiar with the night sky and through
this
to increase awareness of the effects of light pollution and attempt to
influence planning authorities to produce efficient and effective
lighting
schemes. Well designed lights will not only cut down light
pollution,
but will also save energy and protect
the environment (see e.g. the
effects of light pollution on sea turtles).
The activities proposed here can be integrated into science and
technology
lessons. Through these, students will be familiarized with:
- The problems associated with Light Pollution and will study them
- The cultural and social dimensions of the impact of light
pollution
- The effects on their heritage and environment in their country
A. Elementary School.
See simple, naked-eye projects such as those outlined in IDA
information sheet 113 "Count the Stars" and particularly sheet
127 "Save the stars" - a wide range of activities for elementary
students
Grades K-3. See also extracts from a special educational CD
produced
by Margarita Metaxa, a member of our WG, especially Activity IV
& Activity V (these activities are based on IDA's slides and focus
on lighting fixtures and lamps).
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B. High schools
More advanced photographic/visual projects, suitable for high-school
students,
can be based around the IDA concepts in:
1. IDA
information sheet 11 where you can estimate the level of sky glow
due
to cities.
2. IDA
information sheet 58 which presents an excellent visual project
based
around the Pleiades stars.
3. IDA
information sheet 120 where the reader is introduced to the
limiting
magnitude through stars of the constellations Orion, Cygnus, Ursa
Minor.
4. IDA
information sheet 146 gives you basic instructions on how to
photograph
good/bad outdoor lighting, in your local area.
5. IDA
information sheet 148 provides guidance on how to take measurements
with an illuminance meter.
6. "Observe the design of outdoor lighting" - Activity
III from the special educational CD-ROM - which has been developed by
Jerry
Red and edited by David Crawford.
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This project for school children in a single city and/or country
area
was suggested by Dr. Margarita Metaxas of this WG. The
project
involves taking photographs of the same parts of the sky, at the same
time
of night using a camera with a standard 50mm lens (f/2 or less) with
which
the aperture and exposure can be set manually.
- Use 400 ISO Ektachrome Elite color-slide film. It is
important to
use the correct equipment and film.
- Choose the darkest part of your garden or area to make the
observations.
- Check that the exposure will be looking straight upwards (at the
zenith),
and that the sky appears cloudless.
- Check your watch with TV or radio.
- To time the exposure without shining a flashlight into the camera
lens,
use a watch with an alarm or an assistant!
- Use the first two frames of the film on a bright scene, to mark
the
beginning
of your photographic sequence and set the lens aperture to f/4.
- Take a set of three exposures: 80 sec, 150 sec, 300 sec at
roughly the
pre-arranged time and then use the next shot on a bright scene to mark
the end of the sequence.
- Develop the film and compare results on the effects of light
pollution
via star counts from different parts of your town/city.
Other light pollution activities which can be integrated into the
school
curriculum are described at the website of the Light
Pollution Project in the Schools in Greece and the special,
educational,
interactive CD-ROM produced in Greek and in English by Margarita
Metaxa.
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University
Some of the projects proposed for High School
students
can also be carried out at university level:-
1. IDA
information sheet 11 where you can estimate the level of sky glow
due
to cities. This project can be extended using IDA
information sheet 112 .
2. IDA
information sheet 146 gives you basic instructions on how you can
photograph
good/bad outdoor lighting, in your local area.
3. IDA
information sheet 148 provides guidance on how to take measurements
with an illuminance meter.
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Mass Media
Try the IDA, StarDate
(click on "teachers") and Cerro
Tololo (in spanish) websites. The StarDate Online program
includes
StarDate radio, Universo radio and the StarDate magazine.
Articles
in magazines and newspapers can be found by going to the main "Mass
Media"
section of our website.
Spanish-language tapes prepared for StarDate/Universo radio have
been
broadcast in Chile as a pilot project between organizations working
together
to control light pollution.. CTIO has developed a short video in
conjunction
with "Nova" (in connection with the PBS program "Runaway
Universe") showing the night sky rotating
over
Cerro Tololo. The setting zodiacal light, just south of La
Serena,
is not easily seen in individual frames, yet can (just) be seen in the
movie. This wonderful view of the dark night sky over a major
observatory
is threatened and is a point of special attention by this WG.
In addition to the readily accessible links to
press and magazine articles given elsewhere on this site, one may note
that work by some of the members of this working group (Pierantonio
Cinzano and Dave Crawford) and of Commission 50 (Jim
Cohen)
was highlighted in the September 9th issue of "The Economist"
(p99).
See also the broadcast
on light pollution given by US National Public Radio including WG
member
Elizabeth
Alvarez.
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Specialized
media magazines
and books
Sky & Telescope and the April
2000 issue of Audubon magazine (p92) have recently published
articles
on light pollution. Excellent educational magazines such as these reach
a very wide audience with reliable, well-presented information. To
access
the Sky and Telescope material, click here
and here
. A wealth of material is contained within the IAU Symposium
Volume
"Preserving the Astronomical Sky", which will soon be published.
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Planetariums,
Science Centers, Astronomy Clubs
Some useful links:
The ASP
Teachers' Newsletter on Light Pollution (most suited to high-school
and introductory university level).
The StarDate Online program
(click on "teachers")..
The Hands-on Universe
program.
Good
material from Sky and Telescope.
The Palomar Light
Pollution Awareness Program and weblinks therein (especially the LightLynx
site).
The NOAO
educational outreach program in english and in spanish
.
The Gemini
StarTeachers sister-city exchange program in English and in Spanish
centered around portable,
inflatable
planetariums.
Margarita Metaxa's powerpoint presentation on international
schools networks associated with controlling light pollution..
The Astronomical Society of Greater Hartford Light Pollution website
discusses glare
and effects on human vision.
A planetarium
presentation
on light pollution prepared by the South Eastern (US) Planetarium
Association
(SEPA). This 11-minute digital star show "Saving the Night" can
be
adapted for planetarium and other presentations anywhere.
LP
education
work in Chile. The Chilean National Office for the Protection of
the
Quality of the Skies (OPCC), the Chilean
Astronomy Network, REDLASER
schools network, the University of La Serena "Centauri" students,
the
Gemini
portable planetarium group, the "Tololito"
high-school observatory, the Mamalluca
(Vicuna) municipal observatory and the University of La Serena
science/education
faculty are all involved in educational initiatives related to the
control
of light pollution. In October, the Annual
Congress of Amateur Astronomers in Copiapo, Chile featured a
workshop
on Light Pollution. A meeting of this IAU working group coupled
with
an international
conference on controlling light pollution was held in Chile in early
March,
2002.
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Last revised: 3rd March, 2006.