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March 2017
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RSS Earthsky.org > Astronomy Essentials

  • Colors of scintillating Venus March 25, 2017
    Venus reaches inferior conjunction today, officially leaving the evening sky. It has been low in the sky, where Earth's atmosphere has caused Venus to scintillate, or twinkle, in many colors.
    Deborah Byrd
  • Venus after sunset and before sunrise! March 23, 2017
    The planet Venus is now appearing in the west after sunset and in the east before sunrise. Don't believe it? Astronomer Bruce McClure reports on his observation.
    Bruce McClure
  • What is stellar magnitude? March 22, 2017
    Brightest stars to the eye are 1st magnitude, and dimmest stars to the naked eye are 6th magnitude. How the magnitude scale works in astronomy and why it's useful.
    Bruce McClure
  • Watch the sun’s shift on your horizon March 20, 2017
    Here's a fun activity for the coming months. Note how far the sun moves on your horizon each day, as spring shifts toward summer (or autumn towards winter).
    Bruce McClure
  • March equinox! Happy spring or fall March 20, 2017
    The 2017 vernal or spring (or fall) equinox occurred on March 20 at 10:29 UTC. Spring for the north - fall for the south - of Earth's globe.
    Deborah Byrd
  • Fastest sunsets near equinoxes March 18, 2017
    We're talking about the amount of time needed for the body of the sun to sink below the horizon. It's true. The sun actually sets faster around the time of an equinox.
    Bruce McClure

RSS Sky & Telescope > This Week’s Sky

  • This Week’s Sky at a Glance, March 24 – April 1 March 24, 2017
    Some daily sky events among the ever-changing Moon, planets, stars and constellations, from Sky & Telescope magazine, the essential guide to astronomy. The post This Week’s Sky at a Glance, March 24 – April 1 appeared first on Sky & Telescope.
    Alan MacRobert

Total Eclipse Documentary