(meteorobs) Setting Sun Magnitude?

[GeoZay at aol.com]

Pete>>Possibly -20 is too bright, but a setting sun is markedly  brighter than
a full moon,<<
 
yes, you're right...So I'm thinking at least a -13 and probably closer  to 
-16 or -17?
 
Pete>> especially if the sky is very clear--think of  the
difference in how bright the sky appears.<<
 
Definitely brighter, but I keep recalling a time that I photographed a  
setting sun off the Ocean Beach Pier in San Diego, Ca. I remember glancing at  the 
round orb of the sun just before "hitting" the water. I don't recall any  
clouds, but the orb was easy to look at. Of course, I didn't look at it any  
longer than a glance, although it would be easy to. A thought just occurred to  
me...I was looking out over the ocean. I suppose the heavy humidity over the  
ocean would play into this somehow?
GeoZay