It may be the coolest star, but it is not the biggest star known to man.
The biggest star known to man is called VY Canis Majoris. It's almost bigger than our GALAXY, which is VERY big.
Arcturus and all the other bright stars would have been known to the first astronomers, the Babylonians.
The coolest stars are red.
Orange is the coolest color of stars
No. Red stars are the coolest. Blue stars are the hottest.
I don't know about pointing at two stars, but the last two stars in the big dipper's handle point to Arcturus, one of the brightest stars in the sky. Arcturus is in the constellation of Bootes, the Herdsman.
Sirius,Pollux and Arcturus
-- Polaris -- Arcturus -- Milena Velba
red
The coolest - or at least coldest stars are called black dwarfs. See related question.
the brightest star and coolest is betelgeuse
Yes - in fact, it is one of the brightest stars.
sirius,canopus,rigil kentaurus,and arcturus.