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>Anyone have an answer to this one? I'm not a current subscriber to
"METEOPTIC",
>so please respond to me directly as well as the list. Thanks!
>
>Lew Gramer
>owner-meteorobs_at_latrade.com
>
>------- Forwarded Message
>Name: Gloria Lee Email: lee_gloria_at_gsb.stanford.edu
>Area: Astronomy
>Subject: Why does [halo] around moon look less vivid thru binoculars?
>
>Why does the corona [sic] around the moon
>look less vivid when viewed thru binoculars?
>
>I was looking at the moon on a slightly
>foggy night, and there was a wide halo
>around the moon, somewhat rainbow
>like, presumably from the fog. But
>when I looked at the moon again
>through binoculars, the corona did not
>look nearly as bright, colorful or big.
>Why?
>------- End of Forwarded Message
When you magnify any light source, the brightness decreases with the
square
of the magnification
Cheers
joe cali
Joseph A. Cali | |
Environmental Geochemistry Group | |
Research School of Earth Sciences | Phone : +61 2 6249 3246 |
Australian National University | Fax : +61 2 6249 3683 |
Canberra, Australia, 0200 | Email : Joe.Cali_at_anu.edu.au |
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