Re: BB: Circumference of the earth at a given latitude
D.J. <[email protected]> Fri, 06 Oct 2023 08:06:04 -0500
| Newsgroups | alt.callahans |
|---|---|
| Organization | Ye Tycho Crater Ice Cream Parlor |
| Message-ID | <[email protected]> |
On Thu, 5 Oct 2023 08:10:14 -0700 (PDT), Dave Bowman <[email protected]> wrote: >On Sunday, September 20, 2009 at 6:45:50?PM UTC-6, Erin wrote: >> Yeah, okay, I should already know this, but I'm having a "duh" moment. >> Given that the circumference of the earth at the equator is >> *approximately* 24,000 miles, how does one figure the circumference of >> the earth at 60'N Latitude (Anchorage)? >> Erin. > >The circumference of the 60° latitude line is 12450.73 miles. >Go to ==> https://www.vcalc.com/wiki/MichaelBartmess/Rotational+Speed+at+Latitude >Enter your latitude to get the rotational speed in miles per hour. >Multiply the rotational speed (in mph) at your latitude by 23.934472 (as in, number of hours per day in reference to distant stars, not the sun). >That will give you the approximate circumference value of 60° latitude. You replied to a post from 14 years ago. Google groups is bad about that. Welcome to the Show. -- Jim