Hynek like Hoyle were otherwise reputable scientists, and there are a few others.......There will always be an exception in any discipline: That doesn't make them right.
Hynek was a sekptic pad , but he relised ; that there was something going on he could not explain .
He was part of the project Sign ; Project Grudge and Project Blue Book .
His credentials ;
Astrophyscis , Physics and Astronomy ; specialized in Steller evolution and Spectroscopic binary stars .