The Blue Dot Page
Your Blue Dot is the "time-weighted average" of
your location on the Earth. That is to say, what is the average place you
have lived? For example if you lived in New York City for the first ten
years of your life, and then moved to Los Angeles, where you have lived
for twenty years, then your Blue Dot would be just east of Santa Fe, New
The Blue Dot Computer (an Excel Spreadsheet, v1.0)
I have built a spreadsheet to help you compute your Blue
Dot. You can download a copy, or view
the readme file. This is emailware -
send me a message if you enjoy using
it, and tell me where your Blue Dot is.
Internet Mapping Resources
Here are some useful sites for help with computing your
Census Bureau Gazetteer Accepts US place names or zip codes and
returns latitude and longitude.
Mapping Information: GNIS Data Base The definitive US Government
database of US place names. This also lists "features", such
as mountains and bays, so if you are not near a city, this might be your
best bet. Its easy to get a map back from the Tiger Map Service that
confirms the place you have requested.
Map Service From the US Census Bureau again, it will draw a map
based on a given latitude and longitude in the US.
- Online Map Creation
Once you have your Blue Dot computed, visit this site, where you can
enter the boundaries of a region (with latitudes and longitudes)
anywhere in the world and receive back a map of the area.
TerraServer A project designed to demonstrate Microsoft's database
products, it will give you a photo of a location on the earth.
Some Musings on Blue Dots
BEEZER(at)UPS(dot)EDU, Updated: July 2, 1998,
Created: January 5. 1996
- What if you are buried at your blue dot? And what if you aren't?
- How about making a movie of your blue dot? As time evolves, your blue
dot migrates around the globe.
- This is getting out of hand. Enjoy!