2020 OM4
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	8 Jul 2026	27.9	2.249 AU	2.067 AU	12h16m	-20°08'	86.6°	26.8°

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
2026-07-08 00:00 UT   12 16 27.8   -20 08 41     2.067    2.249   86.6   26.8   115   27.9 
2026-07-08 02:51 UT   12 16 34.5   -20 08 34     2.068    2.249   86.5   26.8   116   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 
2026-07-14 00:00 UT   12 22 24.7   -20 05 47     2.121    2.227   82.4   26.9   117   28.0 
2026-07-15 00:00 UT   12 23 28.1   -20 05 53     2.130    2.223   81.7   26.9   117   28.0 
2026-07-16 00:00 UT   12 24 32.4   -20 06 09     2.138    2.219   81.0   26.9   117   28.0 
2026-07-17 00:00 UT   12 25 37.9   -20 06 34     2.147    2.215   80.3   26.9   117   28.0 
2026-07-18 00:00 UT   12 26 44.4   -20 07 09     2.156    2.211   79.6   26.9   117   28.0 
2026-07-19 00:00 UT   12 27 51.8   -20 07 53     2.164    2.208   78.9   26.9   117   28.0 
2026-07-20 00:00 UT   12 29 00.3   -20 08 47     2.173    2.204   78.3   26.8   117   28.0 
2026-07-21 00:00 UT   12 30 09.8   -20 09 49     2.181    2.200   77.6   26.8   118   28.0 
2026-07-22 00:00 UT   12 31 20.3   -20 11 00     2.189    2.196   76.9   26.8   118   28.0 
2026-07-23 00:00 UT   12 32 31.7   -20 12 20     2.198    2.192   76.3   26.8   118   28.0 
2026-07-24 00:00 UT   12 33 44.0   -20 13 49     2.206    2.188   75.6   26.7   118   28.0 
2026-07-25 00:00 UT   12 34 57.4   -20 15 26     2.214    2.183   75.0   26.7   118   28.0 
2026-07-26 00:00 UT   12 36 11.6   -20 17 11     2.222    2.179   74.3   26.7   118   28.0 
2026-07-27 00:00 UT   12 37 26.8   -20 19 04     2.230    2.175   73.7   26.6   118   28.0 
2026-07-28 00:00 UT   12 38 42.9   -20 21 05     2.238    2.171   73.0   26.6   119   28.0 
2026-07-29 00:00 UT   12 39 59.9   -20 23 14     2.246    2.167   72.4   26.5   119   28.0 
2026-07-30 00:00 UT   12 41 17.7   -20 25 31     2.254    2.163   71.8   26.5   119   28.0 
2026-07-31 00:00 UT   12 42 36.5   -20 27 55     2.261    2.158   71.1   26.4   119   28.0 
2026-08-01 00:00 UT   12 43 56.2   -20 30 27     2.269    2.154   70.5   26.4   119   28.0 
2026-08-02 00:00 UT   12 45 16.7   -20 33 06     2.277    2.150   69.9   26.3   119   28.0 
2026-08-03 00:00 UT   12 46 38.1   -20 35 52     2.284    2.146   69.2   26.2   119   28.0 
2026-08-04 00:00 UT   12 48 00.4   -20 38 46     2.291    2.141   68.6   26.2   119   28.0 
2026-08-05 00:00 UT   12 49 23.5   -20 41 46     2.299    2.137   68.0   26.1   119   28.0 
2026-08-06 00:00 UT   12 50 47.5   -20 44 53     2.306    2.132   67.4   26.0   120   28.0 
2026-08-07 00:00 UT   12 52 12.3   -20 48 07     2.313    2.128   66.8   26.0   120   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.