2020 OM4
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	13 Jun 2026	27.7	2.332 AU	1.835 AU	11h59m	-21°33'	106.2°	24.7°

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 2020 OM4 are:

            e (Eccentricity)                : 0.5047802
            a (Semimajor axis)              : 1.6717280
            i (Inclination)                 : 15.41711
            Ω (Longitude of ascending node) : 308.09373
            ω (Argument of perihelion)      : 63.83601
            M (Mean anomaly)                : 143.49152
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 11.08949
            B (Latitude of perihelion)      : 13.80419
            P (Orbital period in years)     : 2.16            
        

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
2026-06-13 00:00 UT   11 59 53.6   -21 33 22     1.835    2.332  106.2   24.7   109   27.7 
2026-06-13 12:22 UT   12 00 04.8   -21 30 21     1.840    2.331  105.8   24.8   109   27.7 
2026-06-14 00:00 UT   12 00 15.6   -21 27 32     1.844    2.329  105.4   24.9   109   27.7 
2026-06-15 00:00 UT   12 00 39.3   -21 21 55     1.853    2.326  104.5   25.0   110   27.7 
2026-06-16 00:00 UT   12 01 04.5   -21 16 30     1.863    2.323  103.7   25.1   110   27.7 
2026-06-17 00:00 UT   12 01 31.5   -21 11 18     1.872    2.320  102.9   25.3   110   27.8 
2026-06-18 00:00 UT   12 01 60.0   -21 06 19     1.881    2.317  102.0   25.4   111   27.8 
2026-06-19 00:00 UT   12 02 30.1   -21 01 32     1.890    2.314  101.2   25.5   111   27.8 
2026-06-20 00:00 UT   12 03 01.7   -20 56 58     1.900    2.310  100.4   25.6   111   27.8 
2026-06-21 00:00 UT   12 03 34.8   -20 52 36     1.909    2.307   99.6   25.7   112   27.8 
2026-06-22 00:00 UT   12 04 09.5   -20 48 27     1.919    2.304   98.8   25.8   112   27.8 
2026-06-23 00:00 UT   12 04 45.6   -20 44 30     1.928    2.301   98.0   25.9   112   27.8 
2026-06-24 00:00 UT   12 05 23.1   -20 40 46     1.937    2.298   97.2   26.0   112   27.8 
2026-06-25 00:00 UT   12 06 02.1   -20 37 13     1.947    2.294   96.4   26.1   113   27.8 
2026-06-26 00:00 UT   12 06 42.4   -20 33 52     1.956    2.291   95.6   26.2   113   27.8 
2026-06-27 00:00 UT   12 07 24.1   -20 30 44     1.965    2.288   94.8   26.3   113   27.9 
2026-06-28 00:00 UT   12 08 07.2   -20 27 47     1.975    2.284   94.1   26.4   113   27.9 
2026-06-29 00:00 UT   12 08 51.6   -20 25 02     1.984    2.281   93.3   26.4   114   27.9 
2026-06-30 00:00 UT   12 09 37.3   -20 22 28     1.993    2.277   92.5   26.5   114   27.9 
2026-07-01 00:00 UT   12 10 24.3   -20 20 06     2.003    2.274   91.8   26.5   114   27.9 
2026-07-02 00:00 UT   12 11 12.6   -20 17 55     2.012    2.271   91.0   26.6   114   27.9 
2026-07-03 00:00 UT   12 12 02.1   -20 15 55     2.021    2.267   90.3   26.6   114   27.9 
2026-07-04 00:00 UT   12 12 52.8   -20 14 07     2.030    2.263   89.6   26.7   115   27.9 
2026-07-05 00:00 UT   12 13 44.8   -20 12 29     2.040    2.260   88.8   26.7   115   27.9 
2026-07-06 00:00 UT   12 14 38.0   -20 11 03     2.049    2.256   88.1   26.8   115   27.9 
2026-07-07 00:00 UT   12 15 32.3   -20 09 47     2.058    2.253   87.4   26.8   115   27.9 
2026-07-08 00:00 UT   12 16 27.8   -20 08 41     2.067    2.249   86.6   26.8   115   27.9 
2026-07-09 00:00 UT   12 17 24.5   -20 07 46     2.076    2.245   85.9   26.8   116   28.0 
2026-07-10 00:00 UT   12 18 22.3   -20 07 02     2.085    2.242   85.2   26.9   116   28.0 
2026-07-11 00:00 UT   12 19 21.3   -20 06 28     2.094    2.238   84.5   26.9   116   28.0 
2026-07-12 00:00 UT   12 20 21.3   -20 06 04     2.103    2.234   83.8   26.9   116   28.0 
2026-07-13 00:00 UT   12 21 22.5   -20 05 51     2.112    2.231   83.1   26.9   116   28.0 

    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.