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Stargazing Tip for March 19

Spring arrives in the northern hemisphere tomorrow, at a moment known as the vernal equinox. This is the point at which the Sun crosses the equator heading from south to north. In many ancient societies, the equinox marked the beginning of a new year.

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Spring Equinox

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Today's Question

How often do all the planets line up?

StarDate magazine

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Stars & Planets

With this travel guide to space, you will discover the cosmic landscape. Easy to survey sky maps, up to date observations and the newest results of space research give you all the information necessary to become a successful amateur astronomer.


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Hobby-Eberly Telescope Black Holes Encyclopedia

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Texas Native Skies: Exploring Astronomy in Early Texan Cultures

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