saturn with the naked eye

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RE: saturn with the naked eye

Postby sftonkin » Mon Jul 05, 2010 1:26 pm

Saturn's albedo is a tad under 5 times that of the Moon (which has the same albedo as tarmac!), so its [b]surface[/b] brightness will be the same tad under 5x that of the Moon, or a slightly larger tad under 2 magnitudes brighter.
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RE: saturn with the naked eye

Postby brianb » Mon Jul 05, 2010 5:03 pm

[quote]so its surface brightness will be the same tad under 5x that of the Moon[/quote]
Not so - the illumination is ~80 times weaker due to the greater distance from the Sun (inverse square law).
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