Aster or Auster: How To spell?

The word Aster is misspelled against Auster, a noun meaning "The south wind."

Word begins with consecutive vowels 'AU' followed by alphabets 'ster' is misspelled as 'A' as letter 'U' is phonetically ignored
Wrong Spelling: a-ster
Correct Spelling: au-ster
Explore spell check of Auster to spell without errors.