I haven't made it into the bonus sections yet, but it's good to know that I picked up on this visually and can already use what I've learned to dig in further :thumbsup:
I see that it wasn't present in the data from the 19th and 20th but was in the 25th.
I did a star alignment on all the lights from the 25th and then blinked the resulting set.
Given that the object is drifting relative to the background stars my…