Pulkovo observatory, 196140, St.-Petersburg, Russia
Several dozens of observations of Mars and Jupiter were carried out in 1988-1994 with the Zverev vertical circle of Pulkovo observatory (also known as the PVC). They were made among 10000 observations of declination of the FK5 stars. All the observations are made as usual meridian ones, but the photographic registration allows detail analysis of the planets' images. It is well known that effects of phase and disk details of planet can be as much as several arcseconds in photoelectric multislit observations, especially for declinations of Mars and Jupiter (see, for example, Yoshizawa M., et al., 1992. Publ. Nat. Astron. Obs. Japan, N 2, pp.475-546). The analysis of the photographic images allows us to reduce the accuracy of one observation of declination to 0.2 arcsec in the northern ecliptic zone. One of final results, correction of the FK5 equator, maintains agreement of the systematic differences in declination "FK5-PVC" and "FK5-H30" within 0.03 arcsec (the latter is taken from Lindegren L. et al., 1995. Astron. Astrophys., 304, p.46).