On my list of objects was a group of interacting galaxies, additionally surrounded by veils of galactic cirrus. So I got started with the newly serviced Elephant telescope and collected data over three nights.
While processing the data, the galaxies seemed very familiar, and I realized that I had already imaged them exactly one year earlier, as one of the first objects with the Elephant at its new location.
I quickly decided to merge both datasets.
 
The galaxy group around NGC 7771 and NGC 7769 in the constellation Pegasus exhibits strong gravitational interaction. Not only the two large ones, also the smaller galaxies NGC 7770, PGC214993, PGC 72612 and PGC214992 tug on each other and disrupt their outward appearance. They develop tidal tails of stars.
 
The images for this object in 2024 were taken with an additional handicap and a surprising discovery: While replacing the focus motor, José Fernando had the misfortune of installing the small drive gear upside down. After the initial successful focusing, it lost contact with the drive. This meant that I had to manage without refocusing over the weekend (when the technicians are off work) – which, surprisingly, wasn't a problem. Due to the stability and the lack of thermal expansion or contraction of the Sital mirror and the carbon-aramid tube, the focus remained unchanged over several nights. So, at least with the White Elephant, frequent refocusing is unnecessary.