just learning.
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info on blue streak.
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by JeanTate in response to Absinthedrinker's comment.
Hard to say for sure; could be a diffraction spike from a distant (out of this field) very bright star (these are caused by the way light interacts with the 'vanes' which support the secondary mirror in the telescope); could be a satellite (or aircraft, or meteor) trail; ...
Happy hunting!
Posted