Spica is the 15th brightest star in the sky and the brightest in the Virgo constellation. The star is also known as Alpha Virginis and is situated around 250 light-years from Earth. Spica is not a ...
By turning the top wheel around and aligning the date and time scales on the base and the top, you could see which stars and constellations would be visible in the sky. Shown in an elliptical ...