According to The Watchers website: “Sunspots 1164 and 1166 are so large, people are noticing them at sunrise and sunset when the sun is dimmed by clouds and haze. The dark cores of these regions are many times wider than Earth, so they are conspicuous even from a distance of 93 million miles.” I know little about the science behind the sun and skies but from my little observation, I’m continually amazed and infinitely fascinated by Nature.
This image is zoomed in from the full-frame of the Little black spot on the sun today. Seen from Boston looking toward Cambridge Massachusetts on September 13 2011.
Equipment used: Canon EOS 40D with Canon EF100-400 f/4.5-5.6L IS USM lens
Focal length 400mm, Exposure 1/1250 sec at f/5.6, ISO 200