(15) Eunomia
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	11 Jul 2026	11.4	3.129 AU	3.225 AU	11h54m	-11°52'	75.5°	18.3°
Opposition	9 Jun 2027	9.5	2.928 AU	1.924 AU	17h05m	-33°11'	169.7°	3.6°

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)                : 0.1877708
            a (Semimajor axis)              : 2.6419587
            i (Inclination)                 : 11.76139
            Ω (Longitude of ascending node) : 292.88078
            ω (Argument of perihelion)      : 98.46132
            M (Mean anomaly)                : 159.68910
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 211.52085
            B (Latitude of perihelion)      : 11.63157
            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
2026-07-11 00:00 UT   11 54 40.9   -11 52 21     3.225    3.129   75.5   18.3   117   11.4 
2026-07-11 18:16 UT   11 55 23.3   -11 54 36     3.235    3.129   75.0   18.3   117   11.4 
2026-07-12 00:00 UT   11 55 36.7   -11 55 19     3.238    3.129   74.8   18.3   117   11.4 
2026-07-13 00:00 UT   11 56 33.1   -11 58 23     3.252    3.130   74.1   18.2   117   11.4 
2026-07-14 00:00 UT   11 57 30.0   -12 01 33     3.265    3.130   73.4   18.1   117   11.4 
2026-07-15 00:00 UT   11 58 27.6   -12 04 48     3.279    3.130   72.7   18.1   117   11.4 
2026-07-16 00:00 UT   11 59 25.7   -12 08 08     3.292    3.131   72.0   18.0   118   11.4 
2026-07-17 00:00 UT   12 00 24.3   -12 11 34     3.305    3.131   71.3   17.9   118   11.4 
2026-07-18 00:00 UT   12 01 23.5   -12 15 05     3.319    3.131   70.6   17.8   118   11.4 
2026-07-19 00:00 UT   12 02 23.2   -12 18 41     3.332    3.131   69.9   17.7   118   11.4 
2026-07-20 00:00 UT   12 03 23.5   -12 22 22     3.345    3.132   69.2   17.7   118   11.4 
2026-07-21 00:00 UT   12 04 24.3   -12 26 08     3.358    3.132   68.5   17.6   118   11.5 
2026-07-22 00:00 UT   12 05 25.5   -12 29 59     3.371    3.132   67.8   17.5   118   11.5 
2026-07-23 00:00 UT   12 06 27.3   -12 33 55     3.384    3.132   67.2   17.4   119   11.5 
2026-07-24 00:00 UT   12 07 29.6   -12 37 55     3.397    3.133   66.5   17.3   119   11.5 
2026-07-25 00:00 UT   12 08 32.3   -12 42 00     3.409    3.133   65.8   17.2   119   11.5 
2026-07-26 00:00 UT   12 09 35.6   -12 46 10     3.422    3.133   65.1   17.1   119   11.5 
2026-07-27 00:00 UT   12 10 39.3   -12 50 24     3.435    3.133   64.4   17.0   119   11.5 
2026-07-28 00:00 UT   12 11 43.4   -12 54 43     3.447    3.134   63.8   16.9   119   11.5 
2026-07-29 00:00 UT   12 12 48.0   -12 59 05     3.460    3.134   63.1   16.8   119   11.5 
2026-07-30 00:00 UT   12 13 53.1   -13 03 32     3.472    3.134   62.4   16.7   119   11.5 
2026-07-31 00:00 UT   12 14 58.6   -13 08 04     3.484    3.134   61.8   16.6   120   11.5 
2026-08-01 00:00 UT   12 16 04.5   -13 12 39     3.496    3.134   61.1   16.5   120   11.5 
2026-08-02 00:00 UT   12 17 10.9   -13 17 19     3.508    3.135   60.4   16.4   120   11.5 
2026-08-03 00:00 UT   12 18 17.7   -13 22 02     3.520    3.135   59.8   16.2   120   11.5 
2026-08-04 00:00 UT   12 19 24.9   -13 26 50     3.532    3.135   59.1   16.1   120   11.5 
2026-08-05 00:00 UT   12 20 32.5   -13 31 41     3.544    3.135   58.5   16.0   120   11.5 
2026-08-06 00:00 UT   12 21 40.6   -13 36 36     3.556    3.135   57.8   15.9   120   11.5 
2026-08-07 00:00 UT   12 22 49.0   -13 41 35     3.568    3.136   57.1   15.8   120   11.5 
2026-08-08 00:00 UT   12 23 57.9   -13 46 38     3.579    3.136   56.5   15.6   121   11.5 
2026-08-09 00:00 UT   12 25 07.2   -13 51 44     3.591    3.136   55.8   15.5   121   11.5 
2026-08-10 00:00 UT   12 26 16.8   -13 56 54     3.602    3.136   55.2   15.4   121   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.