Summer Work

August 20th, 2009 · No Comments

The corn is starting to dry out, so it must be time for the Fall semester to start up again. Here at JCCC, though, the work doesn’t stop just because its Summertime. This past summer term, I had an honors student that worked on astrophotography and differential photometry. Both were fun projects, and I’ll write […]

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New Pics

June 18th, 2009 · No Comments

Rather than using the SBIG ST-8 CCD camera, I opted for my Nikon D90 for these photos. In some respects its better, in other ways not so much. First stop: The Sun. In this image, you can see the Sun’s chromosphere and a small prominence on the left side of the image. The camera doesn’t […]

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Ulysses Update

March 8th, 2009 · No Comments

The Ulysses spacecraft is slowly dying, but its not quite finished yet! Its demise was slated for July 1, 2008, but even without its primary X-Band transmitter whose heatsink doubles as the heater for the fuel lines, its been surviving. Here’s the latest update on the health of the only spacecraft ever to explore the […]

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Solar Mosaics

February 27th, 2009 · No Comments

Here are two mosaics of the Sun stitched together with images collected on Wednesday afternoon. These images were taken with a Nikon D90 through a 12″ Meade SCT fitted with an H-alpha filter. The first mosaic is of the full disc of the Sun. There are some details, but the glare of the photosphere, even […]

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New Sunspots!

February 25th, 2009 · No Comments

Ok, it’s not the greatest picture, but we still are dealing with the wind shaking the telescope. You can see a couple of sunspots from, though. These are spots associated with the new solar cycle, #24. Note their latitude. Sunspots early in a solar cycle will form at high latitudes at first. Later in the […]

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Solar Videos

December 3rd, 2008 · No Comments

Here are some nice videos of the Sun as taken by my honors student using our 12″ Meade, a Meade electronic eyepiece, and an H-alpha filter. The wind was brutal, so the images are rather shaky.
This first video highlights the granulation in the photosphere, and the glow of the chromosphere evident above [...]

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