Airmass & Extinction ·
Why Low Stars Redden
un
seel
.com · zenith vs horizon · scattering · reddening
Airmass
1.0 vs 38
Extinction
0.15 vs 5.6 mag
Showing
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Star above atmosphere
Atmosphere shell
Scattered blue light
Reddened horizon star
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.com · Airmass & Extinction