Échelle de Bortle (French Wikipedia)

Analysis of information sources in references of the Wikipedia article "Échelle de Bortle" in French language version.

refsWebsite
Global rank French rank
18th place
118th place
8,316th place
low place
low place
low place
321st place
31st place
low place
low place
low place
low place

148.196

65.118.148.196

astronomic.fr

free.fr

60mm.free.fr

georgewright.org

  • Chadwick A. Moore : Visual Estimations of Night Sky Brightness ; Pinnacles National Monument ; The George Wright FORUM (journal of the George Wright Society, dédié depuis 1981 aux parcs, aires protégées et sites patrimoniaux culturels); (Version PDF, 10 page, en anglais)

harvard.edu

adsabs.harvard.edu

  • Schaefer, Bradley E. Oct. 2002. Astronomy and the limits of vision. Vistas in Astronomy. 36(4):311-361 (Lien)
  • [Stanton, R.H. 1999. Visual magnitudes and the "average observer": The SS Cygni field experiment. JAAVSO 27:97-112 (Lien
  • Weaver, H.F. 1947. The Visibility of Stars without Optical Aid. 1947PASP...59..232W (Lien

skyandtelescope.com

  • John E. Bortle, « Introducing the Bortle Dark-Sky Scale », Sky and Telescope, vol. 101, no 2,‎ , p. 126 (lire en ligne)