If it was an extraterrestrial spacecraft, why would it be shrouded in a gas/dust cloud so that no objects in the solar system can be observed? This looks like a comet, "smells" like a comet.

Sun distance (au): 2.314 Perihel : October 29 2025 Sun distance (au): 1.36

Time: 03:28UT 2025-12-20 Exp.58 x 65sec
Tel. 0.254m f/5.8 ST-10XME CCD @ -25°C 0.95"/pix
Odd Trondal Obs.code 238 (Uranium). Oslo Norway.