How many letters does the top answer for “someone who predicts the future by the positions of the planets and sun and moon” have?

The most common answer is astrologer (10 letters).

Crossword clue: someone who predicts the future by the positions of the planets and sun and moon

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

astrologer 10 letters wn-def

someone who predicts the future by the positions of the planets and sun and Moon

astrologist 11 letters wn-def

someone who predicts the future by the positions of the planets and sun and Moon