Postcard from the Universe – Pleiades

Yes, I have shot the Pleiades many times before. Still, a nice test of the new camera. I was limited to short exposures, 2 minutes in this case, as I was not setup for guiding. I took more frames instead, over thirty exposures of two minutes each for an hour total. After throwing a few out I still had enough to beat down the noise. I expect that with guiding and longer exposures the result would be better, but this wasn’t too bad…

The Pleiades, M45, sum of 27x120s exposures, TV-76mm and Canon 60D

Author: Andrew

An electrical engineer, amateur astronomer, and diver, living and working on the island of Hawaiʻi.

2 thoughts on “Postcard from the Universe – Pleiades”

  1. Without guiding how did you manage to eliminate movement? In two minute exposures there should be trails not pinpoints.

  2. I was on a tracking mount, actually the top of a NexStar GPS 11″. I was not guiding, but it was tracking, though not perfectly. I did have to throw out a half a dozen images spoiled by wind or tracking issues in the mount.

    Next time out (Thanksgiving weekend?) I have to add the guide camera to eliminate those last errors.

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