(15) Eunomia
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	20 Nov 2025	11.2	2.909 AU	3.295 AU	11h44m	-06°52'	58.8°	16.9°
Opposition	24 Mar 2026	9.9	3.062 AU	2.093 AU	11h49m	-16°50'	163.5°	5.3°

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 Eunomia are:

            e (Eccentricity)                : 0.1877813
            a (Semimajor axis)              : 2.6421861
            i (Inclination)                 : 11.76143
            Ω (Longitude of ascending node) : 292.88123
            ω (Argument of perihelion)      : 98.50720
            M (Mean anomaly)                : 113.72578
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 211.56812
            B (Latitude of perihelion)      : 11.63020
            P (Orbital period in years)     : 4.29            
        

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
2025-11-20 00:00 UT   11 44 00.8   -06 52 27     3.295    2.909   58.8   16.9   289   11.2 
2025-11-20 04:35 UT   11 44 12.7   -06 54 23     3.293    2.910   58.9   16.9   289   11.2 
2025-11-21 00:00 UT   11 45 02.9   -07 02 35     3.285    2.911   59.5   17.0   289   11.2 
2025-11-22 00:00 UT   11 46 04.4   -07 12 41     3.274    2.912   60.2   17.1   289   11.2 
2025-11-23 00:00 UT   11 47 05.4   -07 22 46     3.263    2.914   60.9   17.2   289   11.2 
2025-11-24 00:00 UT   11 48 05.8   -07 32 49     3.252    2.915   61.6   17.3   289   11.2 
2025-11-25 00:00 UT   11 49 05.6   -07 42 50     3.241    2.917   62.3   17.4   289   11.2 
2025-11-26 00:00 UT   11 50 04.8   -07 52 49     3.230    2.918   63.0   17.5   289   11.2 
2025-11-27 00:00 UT   11 51 03.4   -08 02 46     3.219    2.920   63.8   17.6   290   11.2 
2025-11-28 00:00 UT   11 52 01.4   -08 12 42     3.207    2.921   64.5   17.7   290   11.2 
2025-11-29 00:00 UT   11 52 58.7   -08 22 35     3.196    2.923   65.2   17.8   290   11.2 
2025-11-30 00:00 UT   11 53 55.5   -08 32 26     3.185    2.924   65.9   17.9   290   11.2 
2025-12-01 00:00 UT   11 54 51.6   -08 42 15     3.173    2.926   66.6   18.0   290   11.2 
2025-12-02 00:00 UT   11 55 47.0   -08 52 02     3.161    2.927   67.4   18.1   290   11.2 
2025-12-03 00:00 UT   11 56 41.8   -09 01 46     3.150    2.929   68.1   18.2   290   11.2 
2025-12-04 00:00 UT   11 57 35.9   -09 11 28     3.138    2.930   68.8   18.3   290   11.2 
2025-12-05 00:00 UT   11 58 29.4   -09 21 08     3.126    2.932   69.6   18.4   290   11.2 
2025-12-06 00:00 UT   11 59 22.1   -09 30 46     3.114    2.933   70.3   18.4   291   11.2 
2025-12-07 00:00 UT   12 00 14.2   -09 40 21     3.102    2.934   71.1   18.5   291   11.2 
2025-12-08 00:00 UT   12 01 05.5   -09 49 54     3.090    2.936   71.8   18.6   291   11.2 
2025-12-09 00:00 UT   12 01 56.2   -09 59 24     3.078    2.937   72.6   18.7   291   11.2 
2025-12-10 00:00 UT   12 02 46.1   -10 08 51     3.066    2.939   73.3   18.7   291   11.2 
2025-12-11 00:00 UT   12 03 35.2   -10 18 16     3.054    2.940   74.1   18.8   291   11.1 
2025-12-12 00:00 UT   12 04 23.6   -10 27 38     3.041    2.942   74.8   18.8   291   11.1 
2025-12-13 00:00 UT   12 05 11.2   -10 36 57     3.029    2.943   75.6   18.9   291   11.1 
2025-12-14 00:00 UT   12 05 58.0   -10 46 13     3.017    2.944   76.4   19.0   291   11.1 
2025-12-15 00:00 UT   12 06 44.0   -10 55 26     3.004    2.946   77.1   19.0   292   11.1 
2025-12-16 00:00 UT   12 07 29.2   -11 04 36     2.992    2.947   77.9   19.1   292   11.1 
2025-12-17 00:00 UT   12 08 13.5   -11 13 43     2.979    2.949   78.7   19.1   292   11.1 
2025-12-18 00:00 UT   12 08 57.0   -11 22 47     2.967    2.950   79.5   19.1   292   11.1 
2025-12-19 00:00 UT   12 09 39.7   -11 31 47     2.954    2.951   80.3   19.2   292   11.1 
2025-12-20 00:00 UT   12 10 21.4   -11 40 44     2.941    2.953   81.1   19.2   292   11.1 

    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.