How many letters does the top answer for “a constellation in the northern hemisphere near ursa major” have?

The most common answer is bootes (6 letters).

Crossword clue: a constellation in the northern hemisphere near ursa major

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

bootes 6 letters wn-def

a constellation in the northern hemisphere near Ursa Major

the constellation ursa major. 50% similar → septentrio