2020 OM4
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	12 May 2026	27.2	2.415 AU	1.587 AU	12h05m	-26°20'	135.7°	17.0°

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 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
2026-05-12 00:00 UT   12 05 14.5   -26 20 13     1.587    2.415  135.7   17.0    89   27.2 
2026-05-12 23:22 UT   12 04 32.1   -26 09 19     1.592    2.413  134.8   17.3    90   27.2 
2026-05-13 00:00 UT   12 04 30.9   -26 09 02     1.592    2.413  134.8   17.3    90   27.2 
2026-05-14 00:00 UT   12 03 49.7   -25 57 55     1.598    2.411  133.8   17.6    91   27.3 
2026-05-15 00:00 UT   12 03 10.7   -25 46 53     1.604    2.408  132.9   17.9    92   27.3 
2026-05-16 00:00 UT   12 02 34.0   -25 35 56     1.610    2.406  131.9   18.2    93   27.3 
2026-05-17 00:00 UT   12 01 59.6   -25 25 05     1.617    2.404  130.9   18.5    94   27.3 
2026-05-18 00:00 UT   12 01 27.5   -25 14 20     1.623    2.402  130.0   18.8    95   27.3 
2026-05-19 00:00 UT   12 00 57.7   -25 03 43     1.630    2.399  129.0   19.1    96   27.3 
2026-05-20 00:00 UT   12 00 30.1   -24 53 14     1.637    2.397  128.1   19.4    96   27.3 
2026-05-21 00:00 UT   12 00 04.8   -24 42 52     1.644    2.394  127.1   19.7    97   27.4 
2026-05-22 00:00 UT   11 59 41.6   -24 32 39     1.651    2.392  126.1   20.0    98   27.4 
2026-05-23 00:00 UT   11 59 20.8   -24 22 35     1.658    2.389  125.2   20.3    99   27.4 
2026-05-24 00:00 UT   11 59 02.1   -24 12 40     1.666    2.387  124.2   20.5    99   27.4 
2026-05-25 00:00 UT   11 58 45.6   -24 02 55     1.673    2.384  123.3   20.8   100   27.4 
2026-05-26 00:00 UT   11 58 31.2   -23 53 20     1.681    2.382  122.4   21.1   101   27.4 
2026-05-27 00:00 UT   11 58 19.0   -23 43 56     1.689    2.379  121.4   21.3   101   27.5 
2026-05-28 00:00 UT   11 58 08.9   -23 34 42     1.697    2.377  120.5   21.6   102   27.5 
2026-05-29 00:00 UT   11 58 00.8   -23 25 38     1.705    2.374  119.6   21.8   102   27.5 
2026-05-30 00:00 UT   11 57 54.9   -23 16 46     1.713    2.372  118.6   22.0   103   27.5 
2026-05-31 00:00 UT   11 57 50.9   -23 08 05     1.721    2.369  117.7   22.3   103   27.5 
2026-06-01 00:00 UT   11 57 49.0   -22 59 36     1.729    2.366  116.8   22.5   104   27.5 
2026-06-02 00:00 UT   11 57 49.1   -22 51 18     1.738    2.364  115.9   22.7   104   27.6 
2026-06-03 00:00 UT   11 57 51.1   -22 43 12     1.746    2.361  115.0   22.9   105   27.6 
2026-06-04 00:00 UT   11 57 55.0   -22 35 18     1.755    2.358  114.1   23.1   105   27.6 
2026-06-05 00:00 UT   11 58 00.9   -22 27 35     1.763    2.355  113.2   23.3   106   27.6 
2026-06-06 00:00 UT   11 58 08.6   -22 20 05     1.772    2.352  112.3   23.5   106   27.6 
2026-06-07 00:00 UT   11 58 18.3   -22 12 48     1.781    2.350  111.4   23.7   107   27.6 
2026-06-08 00:00 UT   11 58 29.7   -22 05 42     1.790    2.347  110.5   23.9   107   27.6 
2026-06-09 00:00 UT   11 58 43.0   -21 58 49     1.799    2.344  109.7   24.1   108   27.7 
2026-06-10 00:00 UT   11 58 58.0   -21 52 09     1.808    2.341  108.8   24.2   108   27.7 
2026-06-11 00:00 UT   11 59 14.8   -21 45 41     1.817    2.338  107.9   24.4   108   27.7 

    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.