2020 OM4
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	30 Oct 2025	28.6	2.392 AU	3.172 AU	12h05m	-09°36'	32.2°	12.8°

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
2025-10-30 00:00 UT   12 05 56.1   -09 36 08     3.172    2.392   32.2   12.8   280   28.6 
2025-10-30 01:49 UT   12 06 02.4   -09 37 03     3.172    2.392   32.3   12.8   280   28.6 
2025-10-31 00:00 UT   12 07 19.3   -09 48 21     3.167    2.394   32.8   13.0   281   28.6 
2025-11-01 00:00 UT   12 08 42.2   -10 00 33     3.162    2.396   33.4   13.2   281   28.6 
2025-11-02 00:00 UT   12 10 04.8   -10 12 45     3.157    2.399   34.0   13.4   281   28.6 
2025-11-03 00:00 UT   12 11 27.2   -10 24 56     3.151    2.401   34.6   13.6   281   28.6 
2025-11-04 00:00 UT   12 12 49.2   -10 37 06     3.145    2.404   35.2   13.8   281   28.6 
2025-11-05 00:00 UT   12 14 11.0   -10 49 15     3.139    2.406   35.8   13.9   282   28.6 
2025-11-06 00:00 UT   12 15 32.4   -11 01 24     3.133    2.408   36.4   14.1   282   28.6 
2025-11-07 00:00 UT   12 16 53.6   -11 13 32     3.127    2.410   37.0   14.3   282   28.6 
2025-11-08 00:00 UT   12 18 14.5   -11 25 39     3.121    2.413   37.6   14.5   282   28.6 
2025-11-09 00:00 UT   12 19 35.1   -11 37 46     3.114    2.415   38.2   14.7   282   28.6 
2025-11-10 00:00 UT   12 20 55.4   -11 49 51     3.108    2.417   38.8   14.9   283   28.6 
2025-11-11 00:00 UT   12 22 15.3   -12 01 56     3.101    2.419   39.4   15.1   283   28.6 
2025-11-12 00:00 UT   12 23 35.0   -12 14 01     3.094    2.421   40.0   15.3   283   28.6 
2025-11-13 00:00 UT   12 24 54.3   -12 26 04     3.087    2.423   40.7   15.4   283   28.6 
2025-11-14 00:00 UT   12 26 13.4   -12 38 07     3.080    2.426   41.3   15.6   283   28.6 
2025-11-15 00:00 UT   12 27 32.1   -12 50 09     3.072    2.428   41.9   15.8   283   28.6 
2025-11-16 00:00 UT   12 28 50.4   -13 02 09     3.065    2.430   42.5   16.0   283   28.6 
2025-11-17 00:00 UT   12 30 08.4   -13 14 10     3.057    2.432   43.2   16.1   284   28.6 
2025-11-18 00:00 UT   12 31 26.1   -13 26 09     3.049    2.434   43.8   16.3   284   28.6 
2025-11-19 00:00 UT   12 32 43.4   -13 38 07     3.041    2.436   44.4   16.5   284   28.6 
2025-11-20 00:00 UT   12 34 00.4   -13 50 04     3.033    2.438   45.0   16.7   284   28.6 
2025-11-21 00:00 UT   12 35 17.0   -14 02 00     3.025    2.440   45.7   16.8   284   28.6 

    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.