(meteorobs) Setting Sun Magnitude?
javor.kac at guest.arnes.si
javor.kac at guest.arnes.si
Mon Mar 14 13:02:52 EST 2005
Hi All,
> Geert>>This formula would suggest a correction of 9 magnitudes at
> 1 degree, but what's it based on? (Looks empirical...)<<
>
> So we are probably thinking in the range of -18? The photograph I
> took of the sun, just before touching the water, would be about 1
> degree. I guess with just one more degree lower, I should have seen
> massive amounts of steam? :O)
There is a paper on atmospheric extinction at
<http://cfa-www.harvard.edu/icq/ICQExtinct.html>.
Based on that paper I have made an online extinction calculator at
<http://www.orion-drustvo.si/MBKTeam/comets/extinction.htm>.
Clear skies!
Javor
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E-mail: javor.kac at orion-drustvo.si
Homepage: http://www2.arnes.si/~mborion4/javor-E.htm
MBK Team: http://www.orion-drustvo.si/MBKTeam/mbkteam.htm
Orion Astronomical Society: http://www.orion-drustvo.si
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