stars don't have ephemerides, they have yearly epochs
sao 159459 for year 2000 = 26° 2' scorpio mag=7.219 kind of dim
I usually use 37 stars with 0 to 1 magnitude, the rest r useless.
I have sketch books of stars going back to 1400 and beyond.
again
buy guide 9 software at projectpluto.com
https://www.projectpluto.com/ for under $100 usa. do it before he dies.