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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.