Arctic Sea Smoke. Fog on surface of sea when caused by cold air moving over warm water.
Arctic Zone. Area north of Arctic Circle.
Arctophylax. Old name for constellation Bootes. Name is sometimes given to star Arcturus. Is Greek for 'Bear Watcher'.
Arcturus. Star Bootes. S.H.A. 147°; Dec. N 19°; Mag. 0-2. Diameter is 30 times that of Sun. candlepower is 100 times greater. Distant 41 light years; temperature 4100°A. Name is Greek for 'Bear Warden'.