2020 OM4
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	5 Aug 2026	28.0	2.137 AU	2.299 AU	12h49m	-20°41'	68.0°	26.1°

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
2026-08-05 00:00 UT   12 49 23.5   -20 41 46     2.299    2.137   68.0   26.1   119   28.0 
2026-08-05 04:17 UT   12 49 38.4   -20 42 19     2.300    2.136   67.9   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 
2026-08-08 00:00 UT   12 53 38.0   -20 51 27     2.320    2.124   66.2   25.9   120   28.0 
2026-08-09 00:00 UT   12 55 04.6   -20 54 54     2.327    2.119   65.6   25.8   120   28.0 
2026-08-10 00:00 UT   12 56 32.0   -20 58 27     2.334    2.115   65.0   25.7   120   28.0 
2026-08-11 00:00 UT   12 58 00.2   -21 02 06     2.340    2.110   64.4   25.7   120   28.0 
2026-08-12 00:00 UT   12 59 29.3   -21 05 52     2.347    2.106   63.8   25.6   120   28.0 
2026-08-13 00:00 UT   13 00 59.2   -21 09 44     2.353    2.101   63.2   25.5   120   28.0 
2026-08-14 00:00 UT   13 02 29.9   -21 13 41     2.360    2.096   62.6   25.4   120   28.0 
2026-08-15 00:00 UT   13 04 01.5   -21 17 44     2.366    2.092   62.0   25.3   120   28.0 
2026-08-16 00:00 UT   13 05 33.9   -21 21 53     2.372    2.087   61.4   25.2   120   28.0 
2026-08-17 00:00 UT   13 07 07.0   -21 26 07     2.379    2.082   60.8   25.1   121   28.0 
2026-08-18 00:00 UT   13 08 41.0   -21 30 27     2.385    2.078   60.3   25.0   121   28.0 
2026-08-19 00:00 UT   13 10 15.8   -21 34 51     2.390    2.073   59.7   24.9   121   28.0 
2026-08-20 00:00 UT   13 11 51.4   -21 39 21     2.396    2.068   59.1   24.8   121   28.0 
2026-08-21 00:00 UT   13 13 27.8   -21 43 55     2.402    2.063   58.6   24.7   121   28.0 
2026-08-22 00:00 UT   13 15 05.0   -21 48 35     2.408    2.058   58.0   24.6   121   28.0 
2026-08-23 00:00 UT   13 16 43.0   -21 53 19     2.413    2.054   57.4   24.5   121   28.0 
2026-08-24 00:00 UT   13 18 21.8   -21 58 07     2.418    2.049   56.9   24.4   121   28.0 
2026-08-25 00:00 UT   13 20 01.3   -22 02 60     2.424    2.044   56.3   24.3   121   28.0 
2026-08-26 00:00 UT   13 21 41.7   -22 07 56     2.429    2.039   55.7   24.2   121   28.0 
2026-08-27 00:00 UT   13 23 22.8   -22 12 57     2.434    2.034   55.2   24.1   121   28.0 
2026-08-28 00:00 UT   13 25 04.8   -22 18 02     2.439    2.029   54.6   24.0   121   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.