Sky this Week

Solar images on July 12, 2006

by Vern on Jul.12, 2006, under Astronomy, Solar

Some interesting prominence were visible off the east and southeast limb in h-alpha.

Image of the sun in h-alpha on July 12, 2006

H-alpha images were obtained at using a Solarscope Ltd Solarview50 h-alpha telescope, Televue 2.5X Powermate, and Canon 300D Rebel (1/400 sec shutter at ASA400 for disk and 1/80 sec shutter at ASA 800 for limb). Images were aligned and stacked with Registax3, colorized with ImagePlus, oriented, composited and cropped with Photoshop Elements2. Weather in Louisville, CO was mostly clear,  transparency was excellent, turbulence was 6/10, no wind, temperature was 89°F, humidity 30%.
No sunspots visible in this image of the sun.
Image of the sun in white light on July 12, 2006

White light image was obtained with Baader filter, Stellarvue A1010 (78mm refractor) telescope, Televue 2.5X Powermate, and Canon 300D Rebel camera (1/250 sec shutter at ASA 100).  Weather in Louisville, CO was mostly clear,  transparency was excellent, turbulence was 6/10, no wind, temperature was 89°F, humidity 30%.

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