Comet color and you March 2013: Take this month's observing
opportunity to test out your eyes’ color receptors. January 28,
2013 |Red sensitive? Blue sensitive? How perceptive are your
eyes to the colors of astronomical objects? One way to find out
is to observe newly discovered Comet C/2011 L4 (PANSTARRS) with
friends under a dark sky this month. (For more about this comet,
including a finder chart, see “Get ready for Comet PANSTARRS” on
p. 60). All you need to do is sketch the comet head and its
tail(s) and rate their intensity and their color. It’s an
exercise that’s both informative and fun.| Astronomy magazine
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