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maenu_qualite

La qualité du ciel (Impact sur l'astronomie)

Effets sur le paysage nocturne (Suisse)

ASCEN_Brochure_impacts_astronomiques_2014.01.23_9pg


La vue spectaculaire du ciel nocturne qu'avaient encore nos arrière-grands-parents n'existe malheureusement plus en Belgique. Il devient de plus en plus difficile dans notre pays de trouver des lieux propices à l’observation du ciel. La Belgique participe au programme du VLT (Very Large Telescope) au Chili et est également active dans d'autres observatoires. La vocation de nos astronomes et astrophysiciens est bien souvent née après avoir observé le ciel de notre pays. Mais qu'en sera-t-il quand il ne restera plus que la Lune, quelques planètes et quelques étoiles à contempler la nuit dans un ciel oranger ? La plupart de nos enfants ne savent plus ce qu'est la Voie Lactée tout simplement parce qu'ils ne l'ont jamais vue.
ascen_brochure_impacts_astronomiques_2014.01.23_9pg.pdf


Light Pollution: John Garrett at TEDxTemecula

John Garrett uses his skills as a graphic artist and photographer and his wry sense of humor to teach local schoolchildren and community groups about astronomy. As vice president of the Temecula Valley Astronomers, he gives presentations in Temecula, Murrieta, Wildomar, and Menifee. His topics range from atmospheric optics to light pollution, climate, common observing, archeoastronomy, and exoplanets. A regular presenter at the Julian Starfest, John appreciates the Temecula Valley's proximity to the Palomar Observatory and works with the International Dark-Sky Association to help keep our traditionally rural skies dark enough for star gazing.

If you can have the nighttime lighting you need for safety and security, and can still see the stars, would you take both? We can have a dark sky and a well lit ground by fixing design flaws that make many lights a nuisance, a glare hazard, and a waste of energy.

In the spirit of ideas worth spreading, TEDx is a program of local, self-organized events that bring people together to share a TED-like experience. At a TEDx event, TEDTalks video and live speakers combine to spark deep discussion and connection in a small group. These local, self-organized events are branded TEDx, where x = independently organized TED event. The TED Conference provides general guidance for the TEDx program, but individual TEDx events are self-organized.* (*Subject to certain rules and regulations)


Good news for stargazers: UK light pollution is falling

Bonnes nouvelles pour les astronomes: la pollution lumineuse au Royaume-Uni est en baisse

Good news for people who enjoyed last week’s eclipse: viewing the skies could get a whole lot easier in future. New research by blind maker Hillarys has revealed that light pollution in the UK has been reduced by 28 per cent since 1992.

In fact, light pollution in the UK peaked in 1993 and has been falling ever since. It will, the research suggests, continue to fall, and will have reduced by a further 21 per cent by 2025.

The infographic below shows how much light pollution each part of the UK gives out, and how much it has reduced since 1992.

http://www.cityam.com/212127/good-news-uk-light-pollution-falling

maenu_qualite.txt · Dernière modification: 2015/03/25 13:27 par lemstephane