1.  magnitude = 8.4

    (1855)  RA = 06:16:52.3    Dec = +20:35:48   

    (2000)  RA = 06:25:30.36   Dec = +20:31:19.6


2.  This is also known as HD 256881.

    (2000)  RA = 06:25:30.2    Dec = +20:31:16.6


3.  The differences (actual - predicted) positions, in arcseconds, are

        RA   diff = -2.3   arcseconds

        Dec  diff = -3.0   arcseconds

    The proper motion of this star is listed in SIMBAD as

        RA   10.40 milliarcsec/year   =   0.01040  arcsec/year
        Dec  -2.50 milliarcsec/year   =  -0.00250  arcsec/year

    So, over the 145 years between 1855 and 2000, we expect the
    star should have moved by

        RA   ( 0.01040 arcsec/year) * (145 year)  =  1.5 arcsec
        Dec  (-0.00250 arcsec/year) * (145 year)  = -0.4 arcsec

    No, these don't explain the differences between the 
    precessed BD positions and the actual positions in J2000.
    The BD positions must have been slightly in error.
    But only by a few arcseconds, which is a very small error
    for visual measurements.