Monthly Archives: September 2014

The Ecliptic

The ecliptic, as astronomers call it, is the apparent path of the sun against the background of the stars in the sky. It’s useful because it tells us how to find the planets in the sky. They can be hard to … Continue reading

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Precession

We have a bit of a shorter post today—I thought precession warranted its own post, before I go on to talking about the ecliptic. Precession is refers to the way Earth wobbles around on its axis, a bit like a … Continue reading

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The Celestial Sphere

The celestial sphere is certainly a strange way to think about the night sky. It makes sense to use globes to diagram the Earth. The Earth, after all, is a roughly spherical planet, and flat paper maps have a way … Continue reading

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Mapping the Sky

I need you guys to help me with something. Can you find a horse in this image of the night sky? Yeah, me neither. I’m lost. I see the Great Square of Pegasus because I know what to look for, … Continue reading

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The Elusive Light Year

Hey everyone! Before you read this post, I just want to take a moment to make you aware of a couple things. First, this is one of my oldest posts and I’m backdating it so it stays that way, but … Continue reading

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Where Are We?

In the 4th century B. C. E. (Before Common Era), scientists believed the Earth was the center of the universe. Before that, they were convinced the Earth was flat. Now, if anyone so much as mentions that the Earth is … Continue reading

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