Quantitative meditation -- What's a star? -- A sky full of constellations -- Stars on the move -- Using star maps -- Northern constellations -- Autumn constellations -- Winter constellations -- Spring constellations -- Summer constellations -- The marvelous but mischievous moon -- Planets, wanderers of the sky -- Celestial extras -- You and your telescope -- Planet locator -- Brightest stars in Illinois -- Monthly star maps.