I took a look at NGC 7789. I could sort of see it naked eye, but it was more suspected than anything else due to the low contrast and the bordering 7+ mag stars that run together in these conditions, on the Milky Way backdrop. And that is without considering that I can see the companions for both rho and sigma Cas that are in the 6 mag range. I did a check with the 2.3x Gallilean binocs and the additional scale/reach (and ability to focus past my naked eye 0.5 to 0.75 diopters of myopia) allows me to see NGC 7789 as a distinct averted vision blob compared to the 7th mag stars, but it is still subtle.
Whatever I was seeing naked eye in the plotted position of Caroline’s Rose on October 12th was a threshold observation that faded in and out over two hours the sky got darker and the object climbed higher.
Last night, the sky wasn’t quite as transparent and neighbors 100 yards away had porch lights on, so whatever I was seeing naked eye was less distinct, more like an averted imagination view. Putting the 7x50 on that position showed Caroline’s Rose faintly with direct vision as well as Rho Cas and Sigma Cas on opposite sides of it.