The observers attached a small six - centimeter refracting telescope to a 15.8 centimeter Fraunhofer heliometer .
Berkowski made an eighty - four second exposure shortly after the beginning of totality .
The observers attached a small six - centimeter refracting telescope to a 15.8 centimeter Fraunhofer heliometer , and Berkowski made an eighty - four second exposure shortly after the beginning of totality .