Earth's Day-Night Gray Line
http://sec.noaa.gov/pmap/ (POES most recent passes for both Northern and Southern Hemisphere)
http://sec.noaa.gov/pmap/pmapN.html (current POES pass observation for Northern Hemisphere)
http://www.swpc.noaa.gov/dregion/index.html D-Region Absorption Prediction
http://riemann.usno.navy.mil/aa/data/docs/RS_OneDay.html
Satellite View Above Sable Island
Day-Night Location
The image below gives the present location of day and night on the earth. The white area on the map are those locations in day; the grey indicates twilight; and the black is night.
Lasted Updated: 00:05UT 01 Mar 09
