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Showing posts from February, 2025

Day and Night Nine

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First attempt at time lapse photography of clouds over the Cascades. An image every 15 seconds for 2 hours. Full Moon - 40 stacked images at 1/200th of a second.

Night Eight

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  The Great Globular Cluster in Hercules - M 13 Messier 13 was first seen by Edmond Halley in 1714 and added to Messier's list in 1764.   This cluster of stars is thought to be composed of several hundred thousand stars , with estimates varying from around 300,000 to over half a million stars.  When Charles Messier first observed this cluster with his telescope, he could not resolve any individual stars, it appeared to be one large blob. As he said, "Nebula without star..." The 1974 Arecibo message, which contained encoded information about the human race, DNA, atomic numbers, Earth's position and other information, was beamed from the Arecibo Observatory  radio telescope in Puerto Rico  towards Messier 13 as an experiment in contacting potential extraterrestrial civilizations in that cluster. M13 was chosen because it was a large, relatively close star cluster that was available at the time and place of the ceremony.  The cluster will move through spa...