The word Perigaen is misspelled against Perigean, an adjective meaning "Pertaining to the perigee."
-->
Perigean has vowels 'ea' together mispronounced as 'ae'
Word contains consecutive vowels 'EA' in between alphabets perig & n is misspelled as 'AE'
Wrong Spelling:  perig-ae-n 
Correct Spelling:  perig-ea-n 
Find more wrongly spelled words of Perigean to spell it well.