SoHO Image anomaly 13 Aug 2008, What is this image? |
SoHO Image anomaly 13 Aug 2008, What is this image? |
Aug 20 2008, 07:24 PM
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Member Group: Members Posts: 235 Joined: 2-August 05 Member No.: 451 |
Over on the BAUT forum, someone pointed out this image
http://www.bautforum.com/attachments/quest...813_0918_c3.jpg I looked through the SoHO images to be sure it wasn't a hoax, and this image did appear on the official sight with no obvious artifact like this in either the image before or after it. So it is obviously not a giant comet with a coma twice the diameter of the Sun which only appears for a few minutes... it is probably an artifact inside or right next to SoHO. Does anyone have a good guess as to what it is? |
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Aug 21 2008, 03:43 AM
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#2
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Junior Member Group: Members Posts: 87 Joined: 9-November 07 Member No.: 3958 |
The feature appears pretty accurately radial to the Sun's location at the field center, which is a common property of internal reflections in complex optical systems. I'm wondering whether there could have been an excursion in the spacecraft pointing which let light from the innermost corona (let alone the photosphere) somewhere that gave in internal reflection in the camera. If bright enough, what shows up in that image could even be the inompletely scrubbed afterimage of a very bright stimulus.
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