&x1F50D; Click to zoom
A faint diagonal track across the star trails on the night before the Perseid maximum, from the Canon. Much dimmer than the 10 August captures, and only a little brighter than the trails it crosses.
Placeholder - the classification reasoning is still to be written. The star trails are dashed because the Canon was on an interim capture cadence; the period it was in use has not been established yet, so the dashing says nothing about how long this track was present. The track angle is well off the sidereal direction, which is the one solid point. At this signal level a short satellite glint is not excluded.