(28) Bellona
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	13 May 2026	11.6	2.921 AU	1.975 AU	16h54m	-08°45'	154.8°	8.5°
Opposition	30 May 2026	11.4	2.944 AU	1.950 AU	16h39m	-08°12'	166.2°	4.7°

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 Bellona are:

            e (Eccentricity)                : 0.1489865
            a (Semimajor axis)              : 2.7772838
            i (Inclination)                 : 9.42325
            Ω (Longitude of ascending node) : 144.15088
            ω (Argument of perihelion)      : 343.46246
            M (Mean anomaly)                : 65.45934
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 127.82454
            B (Latitude of perihelion)      : -2.67116
            P (Orbital period in years)     : 4.63            
        

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
2026-05-13 00:00 UT   16 54 05.7   -08 45 52     1.975    2.921  154.8    8.5   245   11.6 
2026-05-13 10:50 UT   16 53 45.9   -08 44 40     1.973    2.921  155.2    8.3   245   11.6 
2026-05-14 00:00 UT   16 53 21.5   -08 43 14     1.971    2.922  155.8    8.2   244   11.6 
2026-05-15 00:00 UT   16 52 36.5   -08 40 41     1.968    2.924  156.7    7.9   242   11.6 
2026-05-16 00:00 UT   16 51 50.6   -08 38 12     1.965    2.925  157.6    7.6   240   11.6 
2026-05-17 00:00 UT   16 51 04.0   -08 35 48     1.962    2.926  158.5    7.3   238   11.5 
2026-05-18 00:00 UT   16 50 16.6   -08 33 29     1.960    2.928  159.3    7.0   236   11.5 
2026-05-19 00:00 UT   16 49 28.5   -08 31 15     1.957    2.929  160.2    6.7   234   11.5 
2026-05-20 00:00 UT   16 48 39.8   -08 29 07     1.955    2.930  161.0    6.5   232   11.5 
2026-05-21 00:00 UT   16 47 50.5   -08 27 03     1.953    2.932  161.8    6.2   229   11.5 
2026-05-22 00:00 UT   16 47 00.7   -08 25 05     1.952    2.933  162.5    6.0   226   11.5 
2026-05-23 00:00 UT   16 46 10.4   -08 23 13     1.951    2.934  163.2    5.7   223   11.5 
2026-05-24 00:00 UT   16 45 19.7   -08 21 27     1.950    2.936  163.8    5.5   219   11.4 
2026-05-25 00:00 UT   16 44 28.6   -08 19 46     1.949    2.937  164.4    5.3   216   11.4 
2026-05-26 00:00 UT   16 43 37.2   -08 18 11     1.949    2.938  164.9    5.2   212   11.4 
2026-05-27 00:00 UT   16 42 45.5   -08 16 42     1.949    2.940  165.3    5.0   208   11.4 
2026-05-28 00:00 UT   16 41 53.6   -08 15 20     1.949    2.941  165.7    4.9   203   11.4 
2026-05-29 00:00 UT   16 41 01.5   -08 14 04     1.949    2.942  165.9    4.8   199   11.4 
2026-05-30 00:00 UT   16 40 09.3   -08 12 54     1.950    2.944  166.1    4.7   194   11.4 
2026-05-31 00:00 UT   16 39 17.1   -08 11 50     1.951    2.945  166.2    4.7   189   11.4 
2026-06-01 00:00 UT   16 38 24.8   -08 10 53     1.952    2.946  166.2    4.7   184   11.4 
2026-06-02 00:00 UT   16 37 32.6   -08 10 02     1.953    2.948  166.1    4.8   179   11.4 
2026-06-03 00:00 UT   16 36 40.5   -08 09 18     1.955    2.949  165.9    4.8   175   11.4 
2026-06-04 00:00 UT   16 35 48.5   -08 08 41     1.957    2.950  165.6    4.9   170   11.4 
2026-06-05 00:00 UT   16 34 56.8   -08 08 11     1.960    2.952  165.2    5.0   166   11.4 
2026-06-06 00:00 UT   16 34 05.2   -08 07 47     1.962    2.953  164.7    5.2   162   11.5 
2026-06-07 00:00 UT   16 33 14.0   -08 07 30     1.965    2.954  164.2    5.4   158   11.5 
2026-06-08 00:00 UT   16 32 23.1   -08 07 20     1.968    2.956  163.6    5.6   154   11.5 
2026-06-09 00:00 UT   16 31 32.6   -08 07 17     1.972    2.957  163.0    5.8   151   11.5 
2026-06-10 00:00 UT   16 30 42.6   -08 07 21     1.975    2.958  162.3    6.0   148   11.5 
2026-06-11 00:00 UT   16 29 53.0   -08 07 32     1.979    2.960  161.5    6.2   145   11.5 
2026-06-12 00:00 UT   16 29 04.0   -08 07 51     1.983    2.961  160.7    6.5   142   11.5 

    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.