Paris04

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Light Pollution News from Germany
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Astronomers are on the flight
university observatory Bonn1844 constructed
outside of the city
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after 2nd world war in the plain centre of the
city
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1954 Observatory Hoher List 90 km southwest of
Bonn
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Tourisme to the Maare (volcanic seas), Autobahn
Koblenz-Trier with industryand now ...
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Schalkenmehren
Wittlich
Nürburgring
Daun
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observatories in Germany Tautenburg/Jena test
during GDR times switch-off at Jena in
1978 -750 kW resulted in - 24 sky brightness
(Bartl et al., A.N. 300, 4, 1979) at that time
mainly high pressure mercury - today
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Light Pollution and use of land

• number of luminaries increases ...
• increase of industrial and residential areas
• wish of citizens for more light (?)

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population density
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increase of land consumption ...
... and light
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Marketing since 2002 a new lighthouse in Bonn
Licht als Stadtmarketing Beispiel Bonn
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juridical and political differences
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especially energy saving building (no air
conditioning)
close-by Rheinauenpark oldest German nature
park Siebengebirge
Whitsaturday evening, 23 h so many post officers
working?
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Köln Cologne
Rhein-Energie-Stadion football arena
1030 discharge tubes 58 W switch-off at midnight
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Greenhouses in the Netherlandscomplains close to
German border (Emden)
Noordwijk
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Zugspitze
highest German mountain 23rd July purple
illumination by Milka/Kraft Foods 150 Xenon
Space Cannons (7.000 W)40 HMI PAR Beamer
(12.000W) totally 1,5 MW!
"The mountain calls" for nature preserve
projects! political discussionsBavarian minister
for environment reduction of lighting finally
cancelled by Kraft Foods
1030 discharge tubes 58 W switch-off at midnight
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Switch-off
light art award LUX.US of the city of Lüdenscheid
for the project switch-off of artist Tim Otto
Roth switch-off all lights in the city for one
hour
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public lighting and the lack of finances
public lighting paid by public administrations
(municipalities) recession, lack of public
finances many municipalities want to reduce
lightinge.g. Gera, Braunschweig ... but
citizens claim more light for more
security examples Bad Iburg, Bremen,
Bremerhaven
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Bad Iburg
15 km south of Osnabrück 15 000 inhabitants 1 400
lamps _at_ 176 kW (126 W/lamp) whole night (twilight
dimming) 48 700 /a switch off 2-5h -12 700
each h earlier -4 200 castle
illumination paid by private association
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Bremen
Bremen town hall, ann. rep. ASV 2003
540 000 inhabitants 59 000 lamps energy costs 2
575 500 (2003)
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Bremen

• Sandra Ahrens (CDU)
• Proposal for ecological street lighting
• cut-off luminaries
• yellow lighting
• closed luminaries
• accepted by all political parties
• but sold to private swb AG - hopefully same
  conditions!
• needed engagement like Sandor Isepy in Augsburg!

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Bremen
but illumination concept (master plan)to
illuminate the historic city centre
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Bremerhaven

• EnLight (European SAVE-Program)
• Energy efficient outdoor lighting in urban areas
• Bremerhavener Energiemanagement-Agentur
• swb Bremerhaven
• City Bremerhaven
• 11 partners in 7 other EC countries
• reduce energy waste
• cut-off luminaries (with mirrors)
• high pressure mercury -gt hp sodium lamps
• electronic circuits

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Diploma thesis from Madeleine Klein High school
for public administration and finances
valuable practical examples from administrations!
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BUND Berlin Conference on "light ecology" in
Berlin 2003 mainly articles from the BfN
publicationbut available online
www.bund-berlin.de/projekte/licht/TagungLichtoeko
logie280203_lowres.pdf
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FLL Forschungsgesellschaft Landschaftsentwicklung
Landschaftsbau Landscape Research, Development
Construction Society "Our mission is to research,
produce and disseminate all the various landscape
development principles, guidelines and
specifications for the assurance of environmental
quality."
developing norms for outdoor lighting with all
people involved!
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FLL 1st congress on "light in open space" in
March 2003 in Osnabrück

• as important as light is darkness/shadow
• light pollution should be prevented
• norms for how much light is necessary should be
  defined

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Astro-light
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AbeleGeiger (Schreuder)
visit of the light laboratory (initiated in
Stuttgart) cut-off luminaries through mirrors
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ERCO
full cut-off lamps
discussion initiated light art lt-gt light
pollution
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Beispiel Berlin
Fernsehturm
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Beispiel Paris Eiffelturm
Umfrage, ob der Turm über 2000 hinaus leuchten
soll 10 keine Meinung 28 nein 62 ja
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Beleuchtung von Haus, Hof und Garten
billige Gartenstrahler bei Aldi, Lidl
Co. vermeintlich mehr Sicherheit ?sinnvoller
Bewegungsmelder Haus/Garten ins "richtige Licht
setzen"