farmerman wrote:
Im doing some independent research and am searching for a constant
Name your app - if it's local research, try apparent sidereal time >
http://tycho.usno.navy.mil/sidereal.html
> near Philadelphia you're at about longitude W75. For research on old geological strata, go to Wolfram Alpha, enter "earth age" to get suitable unit conversions:
http://www66.wolframalpha.com/input/?i=earth+age
PS there is an error in the "comoving cubic gigaparsec" units on the Wolfram charts, but it's one on the graphic app (5 and 10 are inverted), not the actual calculation: