venus transit across the sun june 2012 |
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| navigate by keyword : 2012 5800 alpha astronomical astronomy astrophysics cold colder convection convective dark darker filter flares granularity hydrogen june kelvin magnification maximum observations optics photosphere planet plasma plumes rare scientific sky solar solarscope space star sun sunspots surface system telescope transit venus |
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| Venus transit over the Sun's photosphere- June 5, 2012. Using an Hydrogen-alpha filter coupled to a solar telescope, some colder dark sunspots & the convective plasma surface's granularity are visible |
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