The Halo Vault

On August 26 2020, Zhang Yibing from Pu'er, Yunnan captured a sunset odd-radius display, in which a bright 28° arc dominates the show.  ...

Two rounds of week-long odd-radii outbreaks swept across southern China in July and August. The second outbreak turned out to be the more no...

On July 1st, skywatcher Luo Wuping captured a decent odd radius plate display during sunset hours from Changsha, Hunan Province, China. ...

Upper left and upper right are image processing by N. Lefaudeux. Lower left is my own processing, and lower right the simulation. All ver...

The 1997 Lascar display ( http://www.thehalovault.org/ 2008/12/lascar-display.html ) opened the door to a world of exotic halos. Halo res...

On the evening of Sep 5, 2018, an odd-radius plate display of great significance was captured in Haikou, China, by photographer Zhan Guor...