Atmospheric Density and Refraction

Atmospheric Density: Ever wonder how much of the atmosphere of Earth is above or below a given altitude? OK, so you haven't. Well just in case you ever do, here is an easy tool that gives a reasonable approximation. Temperature = (F°/C°/K°). Altitude = (mi/km/ft/m).
Atmospheric Refraction: That pesky stuff we've evolved to breath can muck up seeing in lots of ways. However one problem can be relieved by this tool. Ever try to find a dim object near the horizon only to find it was bent upwards by several arc minutes? This tool will tell you approximately how much. More precise calculations require an analysis of air densities and temperatures at multiple levels. Temperature =
: This utility was authored by Les Coleman and is subject to Copyrights belonging to Les Coleman. This material may be referenced and reproduced as long as proper attribution is given as specified in Proper Usage Guidelines for Frosty Drew and Related Materials.