reshot NGC 6940 (Halifax)

Another redo. The May 21 image of the open cluster NGC 6940 showed some trailing. This one worked out much better. Also, I used a different stretch function, Log(x), which seems to be much nicer on star groups...

Luminance only, 60 seconds subexposures, 10 stacked shots. FITS Liberator, Paint.NET. North is up; left is east.

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There's an interesting triple star south of centre: L48 (Thomas Lewis). The B star is shown to the south in SkyTools 3 Pro; the image shows it to the east.

Oops! I think I judged the first run images based on the bright star at the bottom right—and interpreted the elongated shape as trailed images. In fact, that peanut is a bright pair of stars! That the double HD 196021, aka Σ2698. SkyTools shows the 8.7 and 9.7 magnitude stars just outside the boundary of the open cluster.

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It's interesting to me that this latest image is not exactly the same framing as the earlier. Why? Why would BGO point to a slightly different spot?