Stephen James O'Meara's Secret Sky: The "Red Region"
September 2010:Fall is the season of warm red hues, both on Earth and among the stars.
July 26, 2010
As fall approaches, many in temperate latitudes look forward to watching the leaves turn color, from drab green to mixed shades of yellow, orange, and red. The fall stars have something in common with autumn leaves, for they too are rich in warm hues. But you must know where to look.
Use this star chart to find the variable stars R and T Lyrae, which lie about 6° northeast and 2° southwest of Vega (Alpha [a] Lyrae), respectively. R varies in brightness from magnitude 4 to 5 and back every 46 days. T Lyrae varies irregularly in brightness, from magnitude 7.5 to 9.3.
Photo by Astronomy: Roen Kelly
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