HELP

I know this sounds stupid, but I cant for the life of me identify a prominent set of stars

I live in Brizzie
7pm last night walking home from work, there is this prominent set of stars to the west - actually just north of west and about 40 degrees up in the sky It consiststs of three stars in a curve and another star to the north - looking as if they are describing a segment of a circle.(or like a segment off a round cheese) The segment of the circle subtends about 25 - 30 degrees of arc. The top and bottom stars of the curve are orange, as is the star to the north (which forms the centre of the imaginary circle) The centre star in the arc is white. Its GOT to be something easy, but I looked in Harold Bobrof, Edmunds 6 mag atlas, Wil Tirion atlas and Astro mag charts - Nothing looked even close. There are no other bright stars anywhere near. AAGGGHHHHH It's annoying


