Sky Tonight—March 4, Bright star Arcturus is a harbinger of spring
Arcturus’ appearance in the evening sky is a welcome sign in our northern climes, because it heralds the coming of the spring equinox,
Earthsky Tonight — Young moon and Venus low after sunset
It is nearly spring in the northern hemisphere. The March equinox - when the sun crosses the celestial equator from south to north – will fall on March 20.