(40) Harmonia
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	18 Mar 2026	10.9	2.315 AU	1.914 AU	06h34m	+25°40'	100.7°	25.0°
Opposition	17 May 2027	9.2	2.329 AU	1.319 AU	15h43m	-15°03'	175.3°	2.0°

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 Harmonia are:

            e (Eccentricity)                : 0.0462894
            a (Semimajor axis)              : 2.2678501
            i (Inclination)                 : 4.25575
            Ω (Longitude of ascending node) : 94.15655
            ω (Argument of perihelion)      : 269.84322
            M (Mean anomaly)                : 80.29465
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 183.99934
            B (Latitude of perihelion)      : -4.25573
            P (Orbital period in years)     : 3.42            
        

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
2026-03-18 00:00 UT   06 34 11.3   +25 40 32     1.914    2.315  100.7   25.0    94   10.9 
2026-03-18 17:03 UT   06 34 50.3   +25 40 15     1.923    2.315  100.1   25.0    94   11.0 
2026-03-19 00:00 UT   06 35 06.4   +25 40 08     1.926    2.315   99.9   25.1    94   11.0 
2026-03-20 00:00 UT   06 36 02.9   +25 39 42     1.939    2.316   99.1   25.1    94   11.0 
2026-03-21 00:00 UT   06 37 00.8   +25 39 12     1.952    2.316   98.3   25.2    94   11.0 
2026-03-22 00:00 UT   06 38 00.0   +25 38 40     1.964    2.316   97.5   25.2    94   11.0 
2026-03-23 00:00 UT   06 39 00.6   +25 38 04     1.977    2.317   96.8   25.3    94   11.0 
2026-03-24 00:00 UT   06 40 02.5   +25 37 25     1.990    2.317   96.0   25.3    94   11.0 
2026-03-25 00:00 UT   06 41 05.7   +25 36 43     2.003    2.318   95.3   25.4    94   11.1 
2026-03-26 00:00 UT   06 42 10.1   +25 35 58     2.016    2.318   94.5   25.4    94   11.1 
2026-03-27 00:00 UT   06 43 15.7   +25 35 09     2.028    2.319   93.8   25.4    94   11.1 
2026-03-28 00:00 UT   06 44 22.6   +25 34 17     2.041    2.319   93.0   25.4    95   11.1 
2026-03-29 00:00 UT   06 45 30.6   +25 33 22     2.054    2.320   92.3   25.5    95   11.1 
2026-03-30 00:00 UT   06 46 39.7   +25 32 23     2.067    2.320   91.6   25.5    95   11.1 
2026-03-31 00:00 UT   06 47 49.9   +25 31 20     2.080    2.321   90.9   25.5    95   11.1 
2026-04-01 00:00 UT   06 49 01.3   +25 30 14     2.092    2.321   90.1   25.5    95   11.2 
2026-04-02 00:00 UT   06 50 13.7   +25 29 04     2.105    2.321   89.4   25.5    95   11.2 
2026-04-03 00:00 UT   06 51 27.1   +25 27 51     2.118    2.322   88.7   25.5    95   11.2 
2026-04-04 00:00 UT   06 52 41.6   +25 26 34     2.131    2.322   88.0   25.5    95   11.2 
2026-04-05 00:00 UT   06 53 57.0   +25 25 13     2.144    2.323   87.3   25.5    95   11.2 
2026-04-06 00:00 UT   06 55 13.5   +25 23 48     2.156    2.323   86.6   25.5    95   11.2 
2026-04-07 00:00 UT   06 56 30.9   +25 22 20     2.169    2.324   85.9   25.4    95   11.2 
2026-04-08 00:00 UT   06 57 49.2   +25 20 47     2.182    2.324   85.2   25.4    95   11.3 
2026-04-09 00:00 UT   06 59 08.5   +25 19 11     2.195    2.324   84.6   25.4    96   11.3 
2026-04-10 00:00 UT   07 00 28.6   +25 17 31     2.207    2.325   83.9   25.4    96   11.3 
2026-04-11 00:00 UT   07 01 49.7   +25 15 46     2.220    2.325   83.2   25.3    96   11.3 
2026-04-12 00:00 UT   07 03 11.6   +25 13 58     2.233    2.326   82.5   25.3    96   11.3 
2026-04-13 00:00 UT   07 04 34.4   +25 12 05     2.245    2.326   81.9   25.3    96   11.3 
2026-04-14 00:00 UT   07 05 57.9   +25 10 08     2.258    2.327   81.2   25.2    96   11.3 
2026-04-15 00:00 UT   07 07 22.3   +25 08 07     2.271    2.327   80.6   25.2    96   11.3 
2026-04-16 00:00 UT   07 08 47.5   +25 06 02     2.283    2.327   79.9   25.1    96   11.3 
2026-04-17 00:00 UT   07 10 13.5   +25 03 52     2.296    2.328   79.2   25.1    96   11.4 

    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.