Am I allowed to take a digital picture of the solar eclipse on August 21?
This is an interesting question. You are allowed to take a picture of the eclipse. Many poskim allow one to take a picture of the sun when it is not a full picture. Besides, it is not the regular form of the sun.
Shevet Halevi 7-134(7), Chut Shani- Pesach pg. 236, R’ Y. Belski zt”l Daf Hakashrus vol. 17 Issue 6 pg. 3, and even according to R’ Moshe Feinstein zt”l (Am Hatorah vol. 3 issue 7 pg. 93, it is only forbidden if this is the normal image of the sun, an eclipse however is not the normal image of the sun, but a “damaged one”.