Monthly Archives: September 2017

And now for something completely different.

Posted on 2017-09-29 by Thor

Sometimes, when I try to describe to others what I do as a color scientist, I am asked if I can fix their photos.  Usually it is to make their printer look more like their monitor, but a few years … Continue reading →

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Eddington epilogue

Posted on 2017-09-07 by Thor

I was lucky to have ended up at this observing location with such excellent weather. When planning to view total eclipses, I am advised to arrange for other activities as well; the eclipse itself is subject to fickle viewing conditions … Continue reading →

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Discussion

Posted on 2017-09-07 by Thor

It is a bit disappointing to be unable to show a clear gravitational signal, even with all of the successful exposures that were taken, but I recognized the difficulty of this measurement early on. In addition to the variables I … Continue reading →

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Analyzing Eclipse Day Results

Posted on 2017-09-07 by Thor

I was able to obtain 35 photos during totality that were candidates to locate stars in the field. The exposures ranged from 1/60 to 2 seconds, but it became clear after applying the detection procedure starPos.m, that only the longest … Continue reading →

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Comparing Before and During images, step EE-4

Posted on 2017-09-07 by Thor

This was written prior to eclipse day as I was contemplating how to compare the two image sets.  I include it here to keep the thought sequence intact.   When we apply steps EE-1, 2, and 3 to both the … Continue reading →

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