Total Lunar Eclipse Delivers Promised "Blood Moon"

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A total lunar eclipse turned the moon a reddish hue early Tuesday morning, drawing crowds into the night air across the country.

The "Blood Moon" effect peaked between the hours of 3 a.m. and 4:30 a.m. Eastern, and the cosmic color change was perfectly placed for most viewers in North and South America -- at least those fortunate enough to have dodged cloud cover.

If the atmosphere conspired against your neighborhood and blocked the view, fear not, this eclipse marked the beginning of a tetrad, a series of four total lunar eclipses in a row. The next three total eclipses will occur on Oct. 8, 2014, April 4, 2015, and the final one on Sept. 28, 2015.

The start of Tuesday's lunar eclipse marked the second of nine tetrads this century, according to astronomer Fred Espenak. The last tetrad occurred in 2003 and the next is set to take place in 2032. There were five tetrads in the 20th century.