2020 OM4
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	17 Mar 2026	27.3	2.500 AU	1.661 AU	13h20m	-32°25'	139.2°	15.1°

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
2026-03-17 00:00 UT   13 20 37.0   -32 25 41     1.661    2.500  139.2   15.1   322   27.3 
2026-03-17 19:32 UT   13 19 37.5   -32 27 25     1.654    2.500  140.0   14.8   323   27.3 
2026-03-18 00:00 UT   13 19 23.8   -32 27 46     1.653    2.499  140.2   14.8   323   27.3 
2026-03-19 00:00 UT   13 18 08.6   -32 29 32     1.644    2.499  141.1   14.5   325   27.3 
2026-03-20 00:00 UT   13 16 51.6   -32 30 58     1.637    2.498  142.0   14.2   326   27.3 
2026-03-21 00:00 UT   13 15 33.0   -32 32 03     1.629    2.497  142.9   13.9   328   27.2 
2026-03-22 00:00 UT   13 14 12.6   -32 32 48     1.621    2.496  143.8   13.6   329   27.2 
2026-03-23 00:00 UT   13 12 50.6   -32 33 11     1.614    2.495  144.7   13.3   331   27.2 
2026-03-24 00:00 UT   13 11 27.1   -32 33 14     1.607    2.494  145.6   13.1   333   27.2 
2026-03-25 00:00 UT   13 10 02.2   -32 32 54     1.600    2.493  146.4   12.8   334   27.2 
2026-03-26 00:00 UT   13 08 35.9   -32 32 14     1.594    2.492  147.2   12.5   336   27.1 
2026-03-27 00:00 UT   13 07 08.3   -32 31 11     1.588    2.491  148.0   12.2   338   27.1 
2026-03-28 00:00 UT   13 05 39.6   -32 29 46     1.582    2.490  148.8   12.0   340   27.1 
2026-03-29 00:00 UT   13 04 09.8   -32 27 59     1.576    2.488  149.6   11.7   343   27.1 
2026-03-30 00:00 UT   13 02 38.9   -32 25 49     1.570    2.487  150.3   11.5   345   27.1 
2026-03-31 00:00 UT   13 01 07.2   -32 23 17     1.565    2.486  151.0   11.2   347   27.0 
2026-04-01 00:00 UT   12 59 34.6   -32 20 23     1.560    2.485  151.6   11.0   350   27.0 
2026-04-02 00:00 UT   12 58 01.4   -32 17 06     1.555    2.484  152.2   10.8   352   27.0 
2026-04-03 00:00 UT   12 56 27.5   -32 13 27     1.551    2.482  152.8   10.6   355   27.0 
2026-04-04 00:00 UT   12 54 53.1   -32 09 25     1.547    2.481  153.3   10.4   358   27.0 
2026-04-05 00:00 UT   12 53 18.3   -32 05 02     1.543    2.480  153.8   10.3     1   27.0 
2026-04-06 00:00 UT   12 51 43.3   -32 00 16     1.539    2.479  154.2   10.1     4   27.0 
2026-04-07 00:00 UT   12 50 08.0   -31 55 08     1.536    2.477  154.5   10.0     7   26.9 
2026-04-08 00:00 UT   12 48 32.7   -31 49 39     1.533    2.476  154.8    9.9    10   26.9 
2026-04-09 00:00 UT   12 46 57.4   -31 43 48     1.530    2.474  155.1    9.8    13   26.9 
2026-04-10 00:00 UT   12 45 22.2   -31 37 36     1.528    2.473  155.3    9.8    17   26.9 
2026-04-11 00:00 UT   12 43 47.3   -31 31 04     1.525    2.472  155.4    9.7    20   26.9 
2026-04-12 00:00 UT   12 42 12.8   -31 24 12     1.523    2.470  155.4    9.7    23   26.9 

    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.