Show the star arcturus Arf turus arcturus a star of the solar type ot of spectrum identical with that of the sun is now visible in the early evening arcturus has changed its position with reference to the surrounding stars during the last SOO 00 years by an amount equal to the apparent diameter of the moon moving toward the southwest this brilliant orb can not be at less than eight or teu ten times the distance of sirius about nine light years and is probably at a distance from us even greater than this in that case to shine as brilliantly as it does its bulk must be fully that of a thousand bung |