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Ewell Observatory Solar Gallery You don't often get to stare directly at the sun (and we don't suggest you ever do), but with the right solar filter, our sun is an amazing subject to study. The following full image of the sun was obtained on October 23, 2003 using a Coronado SolarMax60, Canon PowerShot G3 digital camera connected to a ScopeTronix MAxView40 40mm eyepiece and 2X Barlow. Exposure time was 1/1000 of a second and an F-stop of 3.0. In the center of this image is Sunspot 10484. Located on the bottom left is Sunspot 10486 responsible for the largest Solar flare in history measured at X28. False colored image processed in Photoshop CS.
The following close-up of Sunspot 10484 was taken on October 24, 2003 using a 8" LX200 GPS WITH SOLAR FILTER, and a Phillips ToUCam PCVC740K webcam. Shutter speed was set at 1/250 at a frame rate of 15 fps. 900 frames were captured and the best 60 were selected and aligned and combined with Registax. The image scale was added to show the immense size of this sunspot. This sunspot is larger than the planet Jupiter and 237 times larger than are own Earth.
The following full image of the sun was obtained on August 10th, 2003 using a 8" LX200 GPS WITH SOLAR FILTER, Canon PowerShot G3 digital camera connected to a ScopeTronix MAxView40 40mm eyepiece. Exposure time was 1/2000 of a second a an F-stop of 8.0.
The following partial image of the sun was obtained on August
10th, 2003 using a 8" LX200 GPS WITH SOLAR FILTER, Canon PowerShot G3 digital camera connected to ScopeTronix MAxView40 40mm eyepiece. Exposure time was 1/1250
of a second a an F-stop of 5.6.
The following close-up of Sunspot 424 was taken on
August 10th, 2003 using a Philips ToUCam PCVC740K webcam.
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