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View Full Version : Astrophoto: Zodiacal Light by Tony and Daphne Hallas



Fraser
2006-Apr-19, 06:31 PM
SUMMARY: The night sky, from a dark location, is filled with many sights full of wonder to urban dwellers: the slow moving glint of a satellite solar array, the flash and occasional sonic repercussion of a meteor flailing overhead, the arc of combined luminosity from the Milky Way's remote suns and the glow from high altitude cirrus present in Earth's atmosphere. But at certain times of the year a few hours after sunset or before sunrise, a soft triangular shape will appear from the horizon extending upward that may lead you to believe the moon or the sun is about to rise. This explanation has passed through the minds of observers since antiquity and is called the false dawn... but, it is another thing altogether.

View full article (http://www.universetoday.com/am/publish/zodiacal_041706.html)
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trinitree88
2006-Apr-22, 11:25 AM
A nice shot by the Hallases. Pete.:dance:

sandiwall
2006-Apr-24, 07:07 AM
Where I come from this phenomenon has been known to the aboriginal people for thousands of years as "Picaninny Dawn"

ArgoNavis
2006-Apr-24, 07:43 AM
Where I come from this phenomenon has been known to the aboriginal people for thousands of years as "Picaninny Dawn"


why?