Tuesday, June 17, 2008

Not your normal moon?

Don’t miss a huge June moon illusion - "The moon illusion, as it's known, is a trick in our minds that makes the moon seem bigger when it's near the horizon. The effect is most pronounced at full moon. Many people swear it's real, suggesting that perhaps Earth's atmosphere magnifies the moon."

According to the U.S. Naval Observatory site:

The following information is provided for Fort Wayne, Allen County, Indiana (longitude W85.2, latitude N41.1):

17 June 2008 Eastern Daylight Time

Begin civil twilight 5:34 a.m.
Sunrise 6:08 a.m.
Sun transit 1:42 p.m.
Sunset 9:16 p.m.
End civil twilight 9:49 p.m.

Moonrise 7:59 p.m. on preceding day
Moon transit 12:25 a.m.
Moonset 4:49 a.m.
Moonrise 8:55 p.m.
Moonset 5:37 a.m. on following day

Phase of the Moon on 17 June: waxing gibbous with 99% of the Moon's visible disk illuminated.

Full Moon on 18 June 2008 at 1:31 p.m. Eastern Daylight Time.

So it won't be dark when the moon rises, but we should be able to see the illusion.

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