![](http://hxmux.jiuhongwang.com/media/6358ac_f725034532a740cba560a2c2d3f9c5c2~mv2_d_5462_1866_s_2.jpg/v1/crop/x_2278,y_0,w_906,h_1866/fill/w_182,h_375,al_c,q_80,usm_0.66_1.00_0.01,blur_3/potw1434a.jpg)
IAU100 GOALS
![](http://hxmux.jiuhongwang.com/media/6358ac_b09d6546b24946b98156b213f4610736~mv2_d_4488_3528_s_4_2.jpg/v1/crop/x_1388,y_0,w_1712,h_3528/fill/w_182,h_375,al_c,q_80,usm_0.66_1.00_0.01,blur_3/03.jpg)
IAU HISTORY
![](http://hxmux.jiuhongwang.com/media/6358ac_3dfa4e2a44464db7877b030dbb873f7e~mv2_d_8000_3084_s_4_2.jpg/v1/crop/x_3889,y_0,w_1496,h_3084/fill/w_182,h_375,al_c,q_80,usm_0.66_1.00_0.01,blur_3/1.jpg)
IAU100 PARTNERS
![](http://hxmux.jiuhongwang.com/media/6358ac_5087501d0e024341bdbfd448cdb860f4~mv2.jpg/v1/crop/x_822,y_0,w_388,h_799/fill/w_182,h_375,al_c,q_80,usm_0.66_1.00_0.01,blur_3/iau1301a.jpg)
IAU100 THEMES
![](http://hxmux.jiuhongwang.com/media/6358ac_6f3d744d32ab4ec688d0ccfb7334037a~mv2.jpg/v1/crop/x_751,y_0,w_544,h_1120/fill/w_182,h_375,al_c,q_80,usm_0.66_1.00_0.01,blur_3/22371113612_c0a635d049_k.jpg)
EVENTS REGISTRATION
佛跳墙2025最新下载
佛跳墙2025最新下载
Explore an Exciting Year
Full of IAU100 Activities
SEE MORE EVENTS
100 Hours of Astronomy activity in Ethiopia, using the telescope awarded by the IAU100 telescope contest. Credit: Mekbeb Tamrat
![](http://hxmux.jiuhongwang.com/media/6358ac_b1e47d7dbcb54af68de0882251d702aa~mv2.png/v1/fill/w_122,h_39,al_c,usm_0.66_1.00_0.01,blur_3/1.png)
![](http://hxmux.jiuhongwang.com/media/6358ac_c8027834af1f438396a3decbf5a86275~mv2.png/v1/fill/w_112,h_48,al_c,usm_0.66_1.00_0.01,blur_3/2.png)
![](http://hxmux.jiuhongwang.com/media/6358ac_6dd804e411c040c4ae3dfdb2f377a46e~mv2.png/v1/fill/w_104,h_44,al_c,usm_0.66_1.00_0.01,blur_3/3.png)
![](http://hxmux.jiuhongwang.com/media/6358ac_1951c8a1519b4f43b32986df10e08917~mv2.jpg/v1/fill/w_104,h_42,al_c,q_80,usm_0.66_1.00_0.01,blur_3/logoNAOJ.jpg)
![](http://hxmux.jiuhongwang.com/media/6358ac_4c937a74801640ec81d57ac8b9bae7a5~mv2.png/v1/fill/w_66,h_61,al_c,usm_0.66_1.00_0.01,blur_3/4.png)
![](http://hxmux.jiuhongwang.com/media/6358ac_6ec7284e8b3a46abbb05090f2f83b339~mv2.png/v1/fill/w_54,h_54,al_c,usm_0.66_1.00_0.01,blur_3/5.png)
佛跳墙2025最新下载
SEE MORE IAU100 PARTNERS