I'm using Kstars for my comet astrometric observations and I've seen that the position of the comets is not correct
Position KStars comet 315P 11 47 07 HR +31 30 49 Dec 2017-01-31 21:00 UTC
Correct Position Comet 315P 12 06 40 HR +28 56 10 Dec 2017-01-31 21:00 UTC
Ramon Naves
Observatory Montcabrer MPC 213
Position KStars comet 315P 11 47 07 HR +31 30 49 Dec 2017-01-31 21:00 UTC
Correct Position Comet 315P 12 06 40 HR +28 56 10 Dec 2017-01-31 21:00 UTC
Ramon Naves
Observatory Montcabrer MPC 213