(218) Bianca
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	4 Nov 2025	13.7	2.927 AU	2.305 AU	06h36m	+03°42'	119.8°	17.1°
Opposition	23 Dec 2025	13.0	2.894 AU	1.959 AU	06h08m	+01°06'	157.7°	7.4°

The interactive orbit chart above shows the body's path through the solar system and its position at the given date. Green and blue lines are shown perpendicular to the ecliptic plane: Green if the path is above the ecliptic plane, blue if it is below. (Left-click and drag to rotate the view; Right-click and drag to move the view; Use scroll wheel to zoom in our out.)

The orbital elements of Bianca are:

            e (Eccentricity)                : 0.1153056
            a (Semimajor axis)              : 2.6689711
            i (Inclination)                 : 15.19383
            Ω (Longitude of ascending node) : 170.50832
            ω (Argument of perihelion)      : 62.32596
            M (Mean anomaly)                : 220.28385
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 231.98735
            B (Latitude of perihelion)      : 13.42096
            P (Orbital period in years)     : 4.36            
        

The light curve chart below shows the estimated development of the minor planet's magnitude.

The all-sky chart below shows the path of the minor planet over the same period as the light curve. The current position is marked yellow.

The following chart shows the path of the minor planet in the next few days. The field of view is optimized for (~10x50) binoculars and finderscopes.

Ephemerides:

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2025-11-04 00:00 UT   06 36 35.8   +03 42 14     2.305    2.927  119.8   17.1   285   13.7 
2025-11-04 18:58 UT   06 36 33.8   +03 37 42     2.296    2.927  120.5   17.0   286   13.7 
2025-11-05 00:00 UT   06 36 33.1   +03 36 31     2.294    2.927  120.7   16.9   286   13.7 
2025-11-06 00:00 UT   06 36 28.9   +03 30 50     2.282    2.926  121.6   16.8   287   13.7 
2025-11-07 00:00 UT   06 36 23.2   +03 25 12     2.271    2.926  122.5   16.6   287   13.7 
2025-11-08 00:00 UT   06 36 16.1   +03 19 37     2.260    2.925  123.4   16.4   288   13.7 
2025-11-09 00:00 UT   06 36 07.5   +03 14 06     2.249    2.924  124.4   16.2   288   13.6 
2025-11-10 00:00 UT   06 35 57.4   +03 08 38     2.238    2.924  125.3   16.1   289   13.6 
2025-11-11 00:00 UT   06 35 45.8   +03 03 14     2.227    2.923  126.2   15.9   289   13.6 
2025-11-12 00:00 UT   06 35 32.7   +02 57 54     2.216    2.923  127.1   15.7   290   13.6 
2025-11-13 00:00 UT   06 35 18.2   +02 52 38     2.206    2.922  128.1   15.5   291   13.6 
2025-11-14 00:00 UT   06 35 02.1   +02 47 27     2.196    2.921  129.0   15.3   291   13.6 
2025-11-15 00:00 UT   06 34 44.6   +02 42 20     2.185    2.921  129.9   15.1   292   13.5 
2025-11-16 00:00 UT   06 34 25.6   +02 37 18     2.175    2.920  130.9   14.8   293   13.5 
2025-11-17 00:00 UT   06 34 05.1   +02 32 22     2.166    2.919  131.8   14.6   293   13.5 
2025-11-18 00:00 UT   06 33 43.2   +02 27 31     2.156    2.919  132.8   14.4   294   13.5 
2025-11-19 00:00 UT   06 33 19.8   +02 22 46     2.146    2.918  133.7   14.2   295   13.5 
2025-11-20 00:00 UT   06 32 55.0   +02 18 07     2.137    2.917  134.6   14.0   296   13.5 
2025-11-21 00:00 UT   06 32 28.7   +02 13 34     2.128    2.917  135.6   13.7   296   13.4 
2025-11-22 00:00 UT   06 32 01.0   +02 09 08     2.119    2.916  136.5   13.5   297   13.4 
2025-11-23 00:00 UT   06 31 32.0   +02 04 49     2.111    2.915  137.4   13.2   298   13.4 
2025-11-24 00:00 UT   06 31 01.5   +02 00 37     2.102    2.915  138.4   13.0   299   13.4 
2025-11-25 00:00 UT   06 30 29.7   +01 56 32     2.094    2.914  139.3   12.8   300   13.4 
2025-11-26 00:00 UT   06 29 56.6   +01 52 34     2.086    2.913  140.2   12.5   301   13.3 
2025-11-27 00:00 UT   06 29 22.2   +01 48 45     2.078    2.913  141.1   12.3   302   13.3 
2025-11-28 00:00 UT   06 28 46.5   +01 45 03     2.070    2.912  142.0   12.0   303   13.3 
2025-11-29 00:00 UT   06 28 09.6   +01 41 30     2.063    2.911  142.9   11.8   305   13.3 
2025-11-30 00:00 UT   06 27 31.4   +01 38 05     2.056    2.911  143.8   11.5   306   13.3 
2025-12-01 00:00 UT   06 26 52.1   +01 34 49     2.049    2.910  144.7   11.3   307   13.3 
2025-12-02 00:00 UT   06 26 11.5   +01 31 42     2.042    2.909  145.6   11.0   308   13.2 
2025-12-03 00:00 UT   06 25 29.9   +01 28 44     2.036    2.909  146.4   10.8   310   13.2 
2025-12-04 00:00 UT   06 24 47.2   +01 25 55     2.029    2.908  147.3   10.6   311   13.2 

    Terminology:
            
    delta:  distance between minor planet and earth in AU
    radius: distance between minor planet and sun in AU
    magn:   magnitude (brightness) estimate    
    ra:     right ascension in hours (24h = 360deg)
    dec:    declination in degrees
    elong:  elongation in degrees (angle sun-earth-minor planet)    
    phase:  phase angle in degrees (angle sun-minor planet-earth)        
    AU:     Astronomical Unit (mean distance between earth and sun: 149597870.7 km
    

Orbital elements provided by the MPC (Minor Planet Center).
Calculations by a modified version of AAPlus, a C# implementation of the AA+ project by PJ Naughter from the algorithms presented in the book "Astronomical Algorithms" by Jean Meeus.
NGC2000 dso catalog and star labels from VizieR as provided by the Strasbourg astronomical Data Center.
Tycho2 catalog from the ESO archive.