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Sunday, May 27, 2012

A sunrise at sunset

After eclipse maximum during the May 20 Annular eclipse, we watched the sun setting over the local horizon as the sun rose over the distant lunar mountains.  This image was taken of the projected image at the McMath Solar Telescope with an exposure of 2 seconds at f/2.8 at ISO 400 with my 24mm lens.

Saturday, May 26, 2012

The Moon, the sun and a sunspot

We watched the partial eclipse from the McMath Solar Telescope on Kitt Peak and enjoyed watching as several sunspots approached the lunar limb and disappeared.  A few things you can see in this image are a fair amount of detail in the sunspot.  There's also some granulation in the surface of the moon.  And you can see the ruggedness of the lunar limb as mountains and craters are abundant there.  This shot of the projected eclipse image from the main beam of the McMath Solar Telescope was taken at 1/2000 seconds at f/5.6, ISO 400.

Friday, May 25, 2012

Annular Eclipse from Kitt Peak

During last weekends Annular Total eclipse, I was "stuck" observing on Kitt Peak.  We were in the path of a partial eclipse that day of about 85% at max about 40 minutes before sunset.  I managed to "sneak" into the McMath Solar Telescope where the day's observers were busy making observations of the sun during the eclipse.  They projected an image onto the wall for about 15 of us to watch throughout the entire visible eclipse.  Here, as the sun starts to get low in the sky, we watch as the sun emerges from behind the sun. This image was taken with my 10mm fisheye with an exposure of 3 seconds at f/2.8, ISO 400.