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The Lightmeter is a low cost instrument for global continuous monitoring of artificial night sky brightening (light pollution). The first version was developed for the International Year of Astronomy 2009.
Light pollution ...
... is the introduction by humans, directly or indirectly, of artificial light into the environment. *
... is the human-caused alteration of outdoor light levels from those occurring naturally. **
The Starlight and Lightmeter Wiki
For help contact Verein@Kuffner-Sternwarte.at .
2024
July 31st: Lightmeter Mark 4 Alpine an der Messstation Legstein im Wildnisgebiet Dürrenstein-Lassingtal im Probebetrieb. Das ist der zweite Alpenstandort für Alpin-Lightmeter nach dem Sonnenobservatorium Kanzelhöhe; GW
January: The Granada, autumn 2023, Manifesto for Tackling Light Pollution & Proposing EU Light Pollution Monitoring is open for signature.
2023
Oktober 15th:: Stationswartung Großmugl gibt ersten vorläufigen Vergleich 2019-2023. 6% Abnahme für den Klarmedian April-Oktober im Vergleich zu Jänner-August. Saisonale Effekte sind dabei nicht korrigiert.
August, 28th:: New Mediawiki-Version based on php-8. For reference, the old (July 2023) version is at
https://hms.sternhell.at/lightwiki/index.php?title=Main_Page
June, 20th: Lichtimmissionen - Neues Gesetz in Oberösterrreich angekündigt!
April, 20th: k2wlights presents the Lightmeters 4: Urban and Alpin 'flavour'
March: Second Epoch of "Lights over Vienna" - Measurements completed after third Helicopter flight
2022
Nov., 16th: Dunkle Zeiten - Ö1 - Dimensionen vom 15. November 2022
Oct. 15.: ÖNORM O 1052 Lichtimmissionen - Messung und Beurteilung (Ausgabedatum: 2022 10 15)
Oct., 13th: Sanchez etr al. maps of scattered light derived from VIIRS, see Sanchez et. al, 2020, The nature of the diffuse light near cities is detected in nighttime satellite imagery. Scientific reports, 10(1), 1-16.
May, 13rd: 20th anniversary of The Venice declaration
26.-30. Sept.: Rethink the Night 2022
25. Sept.: Seeing Stars Leiden
14. Juli: Video: Seeing Stars
April 4: Mark 2.3l driver works on Ubuntu 22.04 LTS (beta).
März: Ankündigung: 15th European Symposium for the Protection of the Night Sky April 30th – May 2nd 2022 in Fulda, Germany
1. Februar: Grobkalibration des neuen Sensors der Station Heidelberg
2021
22. August: Erste Vergleichsgrafiken für die Stationen Wildalm und Dürrenstein.
30. April: Wetter-Wartephase für Startfenster für den Wiener Lichtflug 2021 beginnt.
19. April: Trägerplatform für dritten Wiener Lichtflug (Helikopter) fixiert; ÖAW-ITA-AIT Dokument zur Lichtverschmutzung
24. März.: Uni-Wien Vortrag - Stefan Wallner
Mar 21st': Leitfaden zur Neugestaltung und Umrüstung von Aussenbeleuchtungsanlagen (BFN D)
Mar 19th':IAU Dark and Quiet Skies Book
Mar 12th': Kunstlicht in der Nacht - Positionspapier der Tiroler Umweltanwaltschaft Neue Abschaltregeln in Frankreich (ANCPEN)
Feb. 24th: Das Recht auf Sternlicht - La Palma Deklaration (Fundacion Starlight)
2020
Sept 25th: Results of five month test-measurements at Wildalm (1756 m)
Sept. 23th: Start of measurements at Sonnblick observatory (3106 m).
Sept. 7th IUCN resolution 084 - Taking action to reduce light pollution
July 5th: Licht über Wien VII: 2009 - 2019 - Verein Kuffner-Sternwarte im Auftrag der Stadt Wien, MA 22.
May 23th: Lightmeter Station Wildalm - Start of measurments
May 5th: General considerations for relatively dark starlight/dark-sky areas with few or no direct cultural connections now available via Eastern Alpine and Großmugl starlight areas - Full case study for Astronomy and World Heritage.
April 29th:New Hohe_Warte Lightmeter (since 2020-01-14)
2019
Nov. 3rd-5th: European Symposium for the protection of the night sky
Oct. 29rd-5th: Landretter- Filmpremiere bei der DOK Leipzig 2019. Datum. 28.10.2019 - 03.11.2019
Oct. 20-23rd: New Zealand Starlight Conference
Sep. 2nd: Infos zu Licht_im_Bayrischen_Naturschutzgesetz
Aug. 23rd: Hochbärneck Lightmeter at_Hochbaerneck-sechs-LP20_1 at 92 km from Vienna installed to monitor growth of Vienna light dome that is currently estimated to reach below natural light levels at 70 km.
Aug. 11th: Three month comparison of Geitzendorf at_Geitzendorf_1 and Großmugl.
May 2nd: Lightmeter network extension at Geitzendorf at_Geitzendorf_1 to investigate light pressure on the Großmugl Starlight oasis.
May 1st: The sixth report on the "light over Vienna" containing the 2011-2018 light-monitoring and the relations to air quality indicators and clear atmosphere properties is officially published: Licht über Wien VI (MA22) Licht über Wien VI (Wiener Umweltanwaltschaft)
April 18th: New sensor for the Sonnenobservatorium Kanzelhöhe, the original sensor form the IYA prototype series, recording since August 2009 had been destroyed by a lightnight strike.
2018
September 27th: Earth at Night: Black Marble 2017 in NASA Worldview
September 4th: Lightmeter- Installation-Instructions for Ubuntu 18.04 - Bionic Beaver
August: Kuffner-Observatory and the IAU General Assembly
- Astronomers Garden - Thilina Heenatigala in Keplerschen Nachrichten
- Reaching for the Dark Skies in Vienna - Connie Waker in Keplersche Nachrichten
- Global Hands-On Universe Community Gathers in Vienna written by: Richard Gelderman
- 10 Lesser-Known Celestial Gems in Vienna written by: Maria Pflug-Hofmayr, Keplersche Nachrichten
April 14: Lightmeter installation intructions for Ubuntu 18.04 Bionic Beaver on the Lightmeter-Driver page.
March 24th: Deklaration von La Palma - Deutsche Übersetzung von Dark Sky Switzerland zum 10. Jubiläum
Feb 26th: Studie der Abteilung Umweltschutz des Landes Oberösterreich zu Messnetz und Sternenparks: Langzeitmessungen der Nachthimmelshelligkeit und Möglichkeiten für Nachthimmels-Schutzgebiete in Oberösterreich
Feb 6th: Großmugl and Eastern Alpine Starlight Areas - chapter available:Astronomy and World Heritage - Thematic Study, 2nd edition.
Jan 2018: Measuring night sky brightness: methods and challenges - a comparison on present techniques and concepts. Also at Measuring ... (archive.org)
2017
July 8th: UNESCO World Heritage Committee inscribes Dürrenstein Wilderness on the world heritage list as part of the Primeval Beech Forests of the Carpathians and Other Regions of Europe, Dürrenstein Wildernis
30th June Kanzelhöhe Lightmeter and Arduino-Logger destroyed by lightning.
28th May:: Dürrenstein Light Monitoring 2010 - 2017 - first results appeared in Silva Fera 6, pp.77; ( old, obsolete links: Silva Fera 6, pp.77; Silva Fera 6)
27. April:: Urteil des OÖ LVWG zu Effektbeleuchtung in Natura-2000 Gebiet: Datei:551086 OÖ Umweltanwalt Urteil des LVWG zu Effektbeleuchtung in Natura-2000-Gebiet.pdf; Info von OÖ Umweltanwalt Martin Donat am 2017-04-27; --GW (talk) 16:01, 3 May 2017 (CEST)
March: Earth at Night - Black Marble 2016 (NASA)
Mar. 13th: Media-report on Clara Leutgeb and „Does light pollution affect wild birds? An experiment on blue tits (Cyanistes caeruleus) in the Viennese Forest“ with a new Video on Vienna's lights and the Helicopter study of uplight
Feb. 16th: Presentation of the full light-ballance of the city of Vienna at a media conference at the Vienna Natural History Museum Pressemappe. The full ballance was made possible after the completion of the Helicopter aerial survey of the city lights in all directions. Media response examples: Zuviel Licht über Wien (Wiener Zeitung), Nächtliches Lichtverbot für Geschäfte gefordert
Feb. 8th: Report from the 2016 Montsec Intercomparison campaign of methods to measure the night-light and artificial night-brightening: Montesec Intercomparison Report (at LoNNe)
2016
Nov. 8th: Presentation of the first results of the Vienna flight campaign to measure city light emission in all directions. This completes the Vienna light balance: outdoor lighting sources, use, immission resulting in skyglow and lightdomes: Erste Ergebnisse der Licht-Befliegung Wien - Präsentation beim ExpertInnen Gespräch der MA 33, ... zweiter link
June 21st: American Medical Association's warning on LED: cool it and dim it (CNN)
June, 18th: 2D 3D high-res Viewer of the New World Atlas of Artificial Sky Brighness
June, 13th: The New World Atlas of Artificial Sky Brighness (Falci et al. 2016) is there! - KML-Layer
27th April: All Lightmeter-Driver-Software now available on this wiki at the Lightmeter-Driver page. Most of the most important other pages - including the ones calibration and installation instructions - are now restored. If you hit a page that is still missing you find the backup at The old (damaged and readonly) Lightmeter Wiki
26th April: The Lightmeter Mark 2.3l and Lightmeter Mark 2.4 pro are sold out. Mail Verein@Kuffner-Sternwarte.at to place pre-orders for the Mark 3 Lightmeter that is under development.
22nd April: Lightmeter "First Flight" successfully completed.
24. Nov.: Upper Austria's Light Monitoring Network has now completed its first year at two stations. More information on the nicely documented network of currently 23 SQM-stations with online-data access: Light Measurement Network of Upper Austria. This is arguably the world's largest light monitoring network and most likely the only one run by a government. --GW (talk) 12:06, 24 November 2015 (CET)
The light-pages of upper Austria, Light at Night in Upper Austria also contain an aerial survey of the lights of the Linz-Wels metro-area online and with SQM-data superimposed: "Doris" online viewer of Linz at Night
Related
- How many stars can we still see?: Simple naked eye sightings of the Little Dipper or Orion serve to determine the quality of the world's night skies. more
- What is Light Pollution? by Jan Hollan
- La Palma Deklaration und Nacht/Sternschutzgebiete (Starlight-Reserve)
- PV light measurement at twilight and night, Brno Observatory
Österreich-Seiten:
- Beobachten
- Nachthimmelsschutz - LichtVerschmutzung
- Wieviele Sterne sehen wir noch? - 2009
- Wieviele Sterne sehen wir noch? - Ergebnisse 2009
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