It is a stony Eunomian asteroid from the middle region of the asteroid belt, approximately 16 km in diameter. It was discovered by Milorad Protic at Belgrade Astronomical Observatory, Serbia, on 6 September 1940. It was named for the former country of Yugoslavia

https://en.wikipedia.org/wiki/1554_Yugoslavia

Milorad B. Protic (1911 - 2001) was a Serbian astronomer, discoverer of comet C/1947 Y1 and 7 minor planets and three times director of the Belgrade Observatory

https://en.wikipedia.org/wiki/Milorad_B._Proti%C4%87

Distance from the Sun (au) : 2,26

Time: 21:13UT 2025-11-16 Exp. 18 x 5 sec.
Tel. 0.254m f/5.8 ST-10XME CCD @ -35°C 0.95"/pix
Odd Trondal Obs.code 238 (Uranium). Oslo Norway.