MaG napsal: Pavukuv komentář k světelnému znečištění ve mě vzbudil myšlenku, že na Kleti se vlastně snaží dohodnout s Krumlovákama, aby jim nesvítili jak nechtěj, tak proč by něco podobného nebylo na Kanárech..
A co že tam mají? Maj na to pokud jsem to pochopil jakýsi Úřad pro ochranu tmavé oblohy a taky dva zákony. Pokud by to někdo přeložil lépe 
pak tady to je:
Law 31/1988 on the Protection of the Astronomical Quality of the IAC´s Observatories on October 31 1988, as well as the regulations of the corresponding Royal Decree 243/1992 on March 13 1992.
The Office for the Protection of the Quality of the Canarian Sky (O.T.P.C.) was created in January 1992, under the auspices of the IAC to carry out the monitoring and evaluation of potential polluting activities that could affect the IAC Observatories.
takze:
podla stranky:
http://www.ctio.noao.edu/light_pollution/iau50/prime_dark_sites.htmsu najtmavsie pozicie na zemeguli vhodne ako observatoria pre velke (nad 6.5m) dalekohlady rozdelene nasledovne: trieda A,B - nedetekovane svet.znecistenie v zenite (ziadne!) vid:
B. Other sites for telescopes being planned or built, apertures >6.5m, undetected light pollution at zenith.
Canary Islands
Roque de los Muchachos (GranTCan, WHT, INT, NOT). Visit the OTPC ( english ) or ( spanish ) light pollution site, or contact Francisco Javier Diaz-Castro, a member of this WG. See also the recent paper by M. Pedani on "Light pollution at the Roque de los Muchachos Observatory". (pre linky klikni original)
pozrite si tiez:
http://www.iac.es/proyect/otpc/eng.htm http://www.gtc.iac.es/dilezity dokument o stave LP na Kanarskych ostrovoch:
http://xxx.lanl.gov/PS_cache/astro-ph/pdf/0407/0407109.pdfvysvetlenie tried A,B a C v originale:
Class A , Class B & Class C sites are dark, or fairly dark sites where substantial investment has been made or will very soon be made in the construction of substantial, active, professional, ground-based, optical, research observatories. No man-made light pollution has yet been detected in broad-band observations near the zenith at Class "A" and Class "B" sites (see, e.g., Patat, F. 2003, Astronomy and Astrophysics, 400, 1183). These dark sites are also where large telescopes (of equivalent aperture of at least 6.5m) are presently sited (Class "A") or where construction of such large telescopes has been funded (class "B"). Class "C" sites have either detected light pollution at the zenith, or are ones where no large telescopes (aperture ~6.5m or greater) are currently planned. Thus, for example, Cerro Pachon is a "Class A" site; it is still dark (though under imminent threat of light pollution at the zenith) and the Gemini South 8m telescope is on the summit. Cerro Tololo, though only a few kilometers away and still dark, is a "Class C" site, because no telescopes larger than the Blanco 4m are currently planned for Cerro Tololo.zdroj:
http://www.ctio.noao.edu/light_pollution/iau50/prime_dark_sites.htmt.j. na ostrove (La Palma, Canary Islands, Spain) sa nachadza Roque de los Muchachos Observatory s 10.4m dalekohladom (segmentovym)
podla zdroja je tam obloha bez svetelneho znecistenia (v zenite) a dbaju na to, aby to tak zostalo
mapka:
observatoria:
* The Instituto de Astrofísica (main headquarters) in La Laguna (Tenerife)
* Teide Observatory in Izaña (Tenerife)
* Roque de los Muchachos Observatory in Garafía (La Palma)
vsimnite si polohu ostrova La Palma a Tenerife a pozrite na LP mapu na zaciatku diskusie...
Takze "vzhuru, do Grunbachu" teda na La Palma, (ci Tenerife ak je prave inverzia)...
;)
